The Samsung INR21700-50E 5000mAh 9.8A Continuous Discharge Li-ion Rechargeable Battery is an industry-benchmark high-capacity 21700 cylindrical power cell. Manufactured by Samsung SDI and supplied by DXF POWER with strict quality grading, this flat-top unprotected cell delivers a massive 5000mAh typical capacity (4753mAh minimum) on a 3.6V–3.7V nominal platform with a dependable 9.8A constant continuous discharge rating. As 21700 format batteries rapidly replace older 18650 cells across modern applications, the 50E provides maximum energy density and runtime for electric bicycles, e-scooters, long-range LED torches, robotics, and custom DIY battery packs.

Watch DXF Batteries in Action

Key Features

• Genuine Samsung SDI 50E Cell: Authentic Grade-A 21700 cylindrical cell renowned worldwide for outstanding 5000mAh energy density and reliable cycle life
• 9.8A Constant Continuous Discharge: Engineered to sustain a reliable 9.8A continuous current output for energy-focused electronics and multi-cell battery packs
• 5000mAh Ultra-High Capacity: 5000mAh typical (4753mAh minimum) offers exceptional operating runtime per charge
• CC-CV Charging Support: Supports 2.45A standard charging current with up to 4.9A maximum charging current
• Standard 21700 Flat-Top Design: Dimensions of 21.25 ± 0.1 mm diameter × 70.8 ± 0.15 mm height with flat terminals, ideal for spot-welded custom packs
• Multiple Pack Bundles: Available in 1, 10, 20, 50, and 100 piece packages for single cell replacements or large-scale pack fabrication
• Strict Factory Quality Testing: Cells are inspected for voltage balance, internal resistance, and capacity consistency across every batch

Specifications, Per Battery

• Brand / Manufacturer: Samsung SDI (Supplied by DXF POWER)
• Model / Part No.: INR21700-50E (50E)
• Cell Type: 21700 Cylindrical Rechargeable Lithium-ion (Li-ion)
• Positive Pole: Flat (Flat Top)
• Protection Circuit: No (Unprotected industrial bare cell)
• Type Capacity: 5000mAh
• Minimum Capacity: 4753mAh
• Nominal Voltage: 3.6V – 3.7V
• Charging End Voltage: 4.2V
• Discharge Cut-off Voltage: 2.5V
• Max. Constant Current Output: 9.8A
• Charging Method: CC-CV
• Charging Current: 2.45A
• Max. Charging Current: 4.9A
• Diameter: 21.25 mm ± 0.1 mm
• Height: 70.8 mm ± 0.15 mm
• Weight: 69 g ± 1 g
• Applications: Electric bicycles (e-bikes), electric scooters, high-lumen flashlights, robotics, portable energy storage, and custom DIY battery packs

Package Includes

• Samsung INR21700-50E 5000mAh 9.8A battery cells, quantity chosen from 1, 10, 20, 50, or 100 PCS
• Protective packaging / cell box
• User manual and battery safety guide

Choose Your Ideal Power Bundle

• 1 PCS – Quick Replacement & Testing: Single cell for flashlight upgrade, tool testing, or individual cell repair
• 10 PCS – Small Pack Rebuilds: Perfect for rebuilding portable power banks and handheld devices
• 20 PCS – Auxiliary & Mobility Modules: Ideal for 24V/36V auxiliary modules, robotics, and compact DIY power packs
• 50 PCS – E-Bike & Scooter Battery Packs: Tailored for high-capacity 36V/48V electric bike packs, e-scooters, and portable energy stations
• 100 PCS – Volume Pack Assembly: Best value for workshops, custom pack assemblers, and volume battery builders

Purchasing in bundles ensures matched cell batches for balanced series and parallel assembly.

180-Day Warranty & Customer Support

Every cell batch supplied by DXF POWER is covered by a 180-day manufacturer warranty against defects in materials and craftsmanship. Our technical support team is always available to assist with charging parameters, pack layout recommendations, and safety practices.

Usage & Safety Guidelines

• Use a dedicated lithium-ion smart charger supporting CC/CV charging mode.
• Never charge above 4.2V per cell or discharge below 2.5V per cell.
• Never exceed the maximum continuous discharge current of 9.8A.
• Always inspect cell outer shrink wrap, insulator ring, and terminals for damage before use; rewrap immediately if damaged.
• Never carry loose 21700 batteries in pockets, bags, or purses with metal objects like keys or coins; always store in an insulated battery case.
• Do not short-circuit, crush, incinerate, puncture, or submerge cells in water.
• Store batteries at 3.60V–3.85V per cell in a cool, dry, well-ventilated location away from direct sunlight.
• When building multi-cell packs, always integrate a quality Battery Management System (BMS) with over-current, over-charge, over-discharge, and thermal balance protection.

Why Choose DXF?

• Genuine Grade-A Samsung SDI 50E cells with authentic 5000mAh capacity and 9.8A continuous output
• Tested continuous discharge performance and high energy density
• Carefully matched batches for balanced series and parallel pack assembly
• Strict factory pre-shipment quality checks and secure protective packaging
• Global warehouse logistics network and professional technical customer support

Perfect For

Engineered for e-mobility builders, DIY pack fabricators, contractors, and flashlight enthusiasts demanding maximum 5000mAh capacity and reliable 9.8A continuous output for electric bikes, e-scooters, robotics, and custom energy storage modules.

Power your projects with trusted Samsung 21700 performance. Learn more about setups and battery care on the DXF YouTube channel.

The Samsung INR21700-50GB 5000mAh 15A Li-ion Rechargeable Battery is an ultra-high energy density 21700 cylindrical power cell manufactured by Samsung SDI (Korea) and supplied by DXF POWER with strict quality grading. Featuring an impressive 5000mAh typical capacity (4900mAh minimum) on a 3.66V nominal platform, this unprotected flat-top cell provides up to 15A continuous discharge, outstanding cycle stability (maintaining ≥80% capacity after 1,000 cycles), and broad operating temperatures (-30°C to 60°C discharge). It is the ideal high-capacity power solution for electric bicycles (e-bikes), electric scooters, long-runtime LED torches, robotics, solar energy storage, and custom DIY battery packs.

Watch DXF Batteries in Action

Key Features

• Genuine Samsung SDI 50GB Cell: Premium Grade-A 21700 cell engineered in Korea for maximum energy density and exceptional cycle life
• 5000mAh Ultra-High Capacity: 5000mAh typical (4900mAh minimum) ensures extended runtime in portable electric vehicles and high-drain electronics
• 15A Continuous Discharge: Reliable current delivery capable of supporting continuous draw up to 15A without compromising cell longevity
• Exceptional 1,000+ Cycle Life: Retains ≥80% of initial capacity even after 1,000 charge/discharge cycles under recommended cycling conditions
• Wide Temperature Operating Range: Discharges reliably from -30°C to 60°C and charges from 0°C to 50°C
• Standard 21700 Form Factor: Max dimensions (D) 21.3 × (L) 70.65 mm (±0.15 mm), flat top bare cell design ideal for spot welding and pack fabrication
• Multiple Pack Bundles: Available in 1, 10, 20, 50, and 100 piece packages to suit single replacements or volume pack assembly
• Strict Factory Quality Testing: Cells are inspected for voltage balance, internal resistance, and capacity consistency across every batch

Specifications, Per Battery

• Brand / Manufacturer: Samsung SDI (Supplied by DXF POWER)
• Part No. / Model: Samsung INR21700-50GB (50GB Bare Cell)
• Cell Origin: Made in Korea
• Cell Type: 21700 Cylindrical Rechargeable Lithium-ion (Li-ion)
• Positive Pole: Flat (Flat Top)
• Protection Circuit: No (Unprotected industrial bare cell)
• Typical Capacity: 5000mAh
• Minimum Capacity: 4900mAh (1C = 4900mA)
• Nominal Voltage: 3.66V
• Charging Voltage: 4.20 ± 0.03V (4.125V for cycle life)
• Charging Method: CC-CV
• Charging Current Rate: 0.33C (1617mA)
• Standard Charge Time: 240 minutes
• Cut-off Voltage: 4.2V (4.125V for cycle life) max charge voltage; 2.5V (3.0V for cycle life) discharge cut-off voltage
• Max. Continuous Discharge Current: 15A
• Cycle Life: Capacity ≥ 80% after 1,000 cycles (80% of initial capacity @ RT)
• Operating Temperature: Charge: 0°C to 50°C; Discharge: -30°C to 60°C
• Maximum Dimensions: Diameter: 21.3 mm × Length: 70.65 mm (±0.15 mm)
• Weight (Max.): 72.0 g
• Applications: Electric bicycles (e-bikes), e-scooters, electric mobility, high-output flashlights, power tools, robotics, and custom DIY battery packs

Package Includes

• Samsung INR21700-50GB 5000mAh 15A battery cells, quantity chosen from 1, 10, 20, 50, or 100 PCS
• Protective packaging / cell box
• User manual and battery safety guide

Choose Your Ideal Power Bundle

• 1 PCS – Quick Replacement & Testing: Single cell for flashlight upgrade, tool testing, or individual cell repair
• 10 PCS – Small Pack Rebuilds: Perfect for rebuilding portable power banks and handheld devices
• 20 PCS – Auxiliary & Mobility Modules: Ideal for 24V/36V auxiliary modules, robotics, and compact DIY power packs
• 50 PCS – E-Bike & Scooter Battery Packs: Tailored for high-capacity 36V/48V electric bike packs, e-scooters, and portable energy stations
• 100 PCS – Volume Pack Assembly: Best value for workshops, custom pack assemblers, and volume battery builders

Purchasing in bundles ensures matched cell batches for balanced series and parallel assembly.

180-Day Warranty & Customer Support

Every cell batch supplied by DXF POWER is covered by a 180-day manufacturer warranty against defects in materials and craftsmanship. Our technical support team is always available to assist with charging parameters, pack layout recommendations, and safety practices.

Usage & Safety Guidelines

• Use a dedicated lithium-ion smart charger supporting CC/CV charging mode.
• Standard charging voltage is 4.20V ± 0.03V (charge to 4.125V to maximize cycle life).
• Discharge cut-off voltage is 2.5V (3.0V recommended for prolonged cycle life).
• Charge within 0°C to 50°C; discharge within -30°C to 60°C.
• Always inspect cell outer shrink wrap, insulator ring, and terminals for damage before use; rewrap immediately if damaged.
• Never carry loose 21700 batteries in pockets, bags, or purses with metal objects like keys or coins; always store in an insulated battery case.
• Do not short-circuit, crush, incinerate, puncture, or submerge cells in water.
• Store batteries at 3.60V–3.85V per cell in a cool, dry, well-ventilated location away from direct sunlight.
• When building multi-cell packs, always integrate a quality Battery Management System (BMS) with over-current, over-charge, over-discharge, and thermal balance protection.

Why Choose DXF?

• Genuine Grade-A Samsung SDI 50GB cells with true 5000mAh high capacity and 15A continuous output
• Tested continuous discharge performance and outstanding 1,000+ cycle life
• Carefully matched batches for balanced series and parallel pack assembly
• Strict factory pre-shipment quality checks and secure protective packaging
• Global warehouse logistics network and professional technical customer support

Perfect For

Engineered for e-mobility builders, DIY pack fabricators, contractors, and flashlight enthusiasts demanding high 5000mAh capacity, reliable 15A continuous output, and long 1,000-cycle durability for electric bikes, e-scooters, robotics, and custom energy storage modules.

Power your projects with trusted Samsung 21700 performance. Learn more about setups and battery care on the DXF YouTube channel.

The Samsung INR21700-50S 5000mAh 25A Continuous Discharge Li-ion Rechargeable Battery is an industry-leading high-capacity, high-drain 21700 cylindrical power cell. Manufactured by Samsung SDI and supplied by DXF POWER with strict quality grading, this flat-top unprotected cell delivers a massive 5000mAh typical capacity (4800mAh minimum) on a 3.6V–3.7V nominal platform with a proven 25A constant continuous discharge rating (up to 45A continuous when monitored with an 80°C thermal cut-off). Combining extraordinary runtime with serious high-current discharge capability, it is the premier choice for high-power cordless tools, electric bicycles, e-scooters, high-lumen flashlights, robotics, and custom DIY battery packs.

Watch DXF Batteries in Action

Key Features

• Genuine Samsung SDI 50S Cell: Authentic Grade-A 21700 cylindrical cell widely recognized for delivering an unmatched combination of 5000mAh capacity and high-drain power
• 25A Constant Discharge Rating: Delivers true 25A constant continuous current without temperature monitoring (and up to 45A continuous with 80°C thermal monitoring)
• 5000mAh Ultra-High Capacity: 5000mAh typical (4800mAh minimum) for maximum runtime and energy density in high-performance portable applications
• Fast CC-CV Charging: Supports up to 2.5A standard charging and up to 6A (6000mA) maximum fast charging current
• Standard 21700 Flat-Top Design: Standard dimensions (21.15 ± 0.1mm diameter × 70.52 ± 0.15mm height) with flat top terminal, ideal for spot-welded packs and modular battery sleds
• Multiple Pack Bundles: Available in 1, 10, 20, 50, and 100 piece packages to suit single replacements or bulk pack fabrication
• Strict Factory Quality Testing: Cells are inspected for voltage balance, low internal resistance, and capacity consistency across every batch

Specifications, Per Battery

• Brand / Manufacturer: Samsung SDI (Supplied by DXF POWER)
• Model: INR21700-50S (50S)
• Cell Type: 21700 Cylindrical Rechargeable Lithium-ion (Li-ion)
• Positive Pole: Flat (Flat Top)
• Type Capacity: 5000mAh
• Minimum Capacity: 4800mAh
• Nominal Voltage: 3.6V – 3.7V
• Final Charging Voltage: 4.2V
• Final Discharge Voltage: 2.5V
• Max. Current Output Constant (Continuous): 25A (up to 45A temperature-monitored up to 80°C)
• Charging Current: 0.xx – 2.5A (2500mA)
• Max. Charging Current: 6A (6000mA)
• Charging Method: CC-CV
• Protection Circuit: No (Unprotected industrial cell)
• Diameter: 21.15 mm ± 0.1 mm
• Height: 70.52 mm ± 0.15 mm
• Weight: 72 g ± 1 g
• Applications: Cordless power tools, electric bicycles, e-scooters, electric skateboards, high-output flashlights, robotics, and custom DIY battery packs

Package Includes

• Samsung INR21700-50S 5000mAh 25A battery cells, quantity chosen from 1, 10, 20, 50, or 100 PCS
• Protective packaging / cell box
• User manual and battery safety guide

Choose Your Ideal Power Bundle

• 1 PCS – Quick Replacement & Testing: Single cell for flashlight upgrade, tool testing, or individual cell repair
• 10 PCS – Tool Pack Rebuilds: Perfect for rebuilding heavy-duty cordless power tool battery packs
• 20 PCS – High-Output Modules: Ideal for 36V or 48V auxiliary modules, robotics, and DIY power packs
• 50 PCS – Mobility & Energy Modules: Tailored for high-performance electric bike packs, e-scooters, and portable power stations
• 100 PCS – Master Builder Bulk Set: Best value for workshops, custom pack assemblers, and volume battery builders

Purchasing in bundles ensures matched cell batches for balanced series and parallel assembly.

180-Day Warranty & Customer Support

Every cell batch supplied by DXF POWER is covered by a 180-day manufacturer warranty against defects in materials and craftsmanship. Our technical support team is always available to assist with charging parameters, pack layout recommendations, and safety practices.

Usage & Safety Guidelines

• Use a dedicated lithium-ion smart charger supporting CC/CV charging mode.
• Never charge above 4.2V per cell or discharge below 2.5V per cell.
• Do not exceed cell surface temperature of 80°C during heavy continuous discharge.
• Always inspect cell outer shrink wrap, insulator ring, and terminals for damage before use; rewrap immediately if damaged.
• Never carry loose 21700 batteries in pockets, bags, or purses with metal objects like keys or coins; always store in an insulated battery case.
• Do not short-circuit, crush, incinerate, puncture, or submerge cells in water.
• Store batteries at 3.60V–3.85V per cell in a cool, dry, well-ventilated location away from direct sunlight.
• When building multi-cell packs, always integrate a quality Battery Management System (BMS) with over-current, over-charge, over-discharge, and thermal balance protection.

Why Choose DXF?

• Genuine Grade-A Samsung SDI 50S cells with true 5000mAh capacity and 25A high-drain output
• Tested continuous discharge performance under demanding operational loads
• Carefully matched batches for balanced series and parallel pack assembly
• Strict factory pre-shipment quality checks and secure protective packaging
• Global warehouse logistics network and professional technical customer support

Perfect For

Engineered for contractors, e-mobility builders, DIY pack fabricators, and torch enthusiasts demanding industry-leading 5000mAh capacity and 25A continuous output for high-drain cordless tools, electric transport, robotics, and custom energy modules.

Power your projects with trusted Samsung 21700 performance. Learn more about setups and battery care on the DXF YouTube channel.

The Samsung INR21700-53G 5300mAh 15.9A Continuous Discharge Li-ion Rechargeable Battery (the enhanced next-generation successor to the popular 50G cell) represents the pinnacle of energy density in the 21700 form factor. Manufactured by Samsung SDI and supplied by DXF POWER with strict quality grading, this flat-top unprotected cell delivers an industry-leading 5300mAh typical capacity (5140mAh minimum) on a 3.63V nominal platform with a robust 3C (15.9A / 15,900mA) maximum continuous discharge rating. Engineered for sustained runtime, exceptional 1,000-cycle life longevity, and reliable thermal stability, the 53G is the ultimate choice for electric bicycles (e-bikes), electric scooters, high-performance LED torches, robotics, solar storage, and custom DIY battery packs.

Watch DXF Batteries in Action

Key Features

• Genuine Samsung SDI 53G Cell: Authentic Grade-A 21700 cylindrical cell engineered in Korea/Malaysia, offering state-of-the-art 5300mAh energy density
• 15.9A (3C) Continuous Discharge: Robust 15,900mA maximum continuous current capability powers demanding electric mobility and portable devices
• Industry-Leading 5300mAh Capacity: 5300mAh typical (5140mAh minimum) delivers class-leading runtime for long-distance rides and extended illumination
• Outstanding 1,000+ Cycle Durability: Maintains ≥80% of initial capacity even after 1,000 charge/discharge cycles under recommended cycling conditions
• Fast CC-CV Charging Support: Supports 0.33C (1,749mA) standard charging with up to 5,300mA maximum charging current
• Standard 21700 Flat-Top Design: Dimensions of Φ Max 21.30 mm diameter × Max 70.70 mm height with flat top terminal, optimized for spot welding and custom pack builds
• Multiple Pack Bundles: Available in 1, 10, 20, 50, and 100 piece packages to suit single replacements or bulk battery pack fabrication
• Strict Factory Quality Testing: Cells are inspected for voltage balance, internal resistance, and capacity consistency across every batch

Specifications, Per Battery

• Brand / Manufacturer: Samsung SDI (Supplied by DXF POWER)
• Model / Part No.: INR21700-53G (53G, Ver. 2)
• Cell Type: 21700 Cylindrical Rechargeable Lithium-ion (Li-ion)
• Positive Pole: Flat (Flat Top)
• Protection Circuit: No (Unprotected industrial bare cell)
• Typical Discharge Capacity: 5300mAh (1C = 5,300mA rating)
• Minimum Discharge Capacity: 5140mAh (0.2C / 1060mA discharge to 2.5V @ RT)
• Nominal Voltage: 3.63V
• Charging Method: CC-CV (constant voltage with limited current)
• Standard Charging Current: 0.33C (1,749mA)
• Max. Charging Voltage: 4.2V (4.15V recommended for extended cycle life)
• Max. Charging Current: 5,300mA (5.3A)
• Discharge Cut-off Voltage: 2.5V (3.0V recommended for extended cycle life)
• Max. Continuous Discharge Current: 3C (15,900mA / 15.9A)
• Cycle Life: Capacity ≥ 80% after 1,000 cycles (80% of initial capacity @ RT)
• Operating Temperature: Charge: 0°C to 45°C; Discharge: -20°C to 60°C
• Storage Temperature: 1 year: -20°C to 23°C; 3 months: -20°C to 45°C; 1 month: -20°C to 60°C
• Maximum Cell Dimensions: Diameter: Φ Max. 21.30 mm × Height: Max. 70.70 mm
• Cell Weight: Max. 71.5 g
• Manufacturing Sites: Korea & Malaysia
• Applications: Electric bicycles (e-bikes), electric scooters, high-lumen flashlights, robotics, portable energy storage, and custom DIY battery packs

Package Includes

• Samsung INR21700-53G 5300mAh 15.9A battery cells, quantity chosen from 1, 10, 20, 50, or 100 PCS
• Protective packaging / cell box
• User manual and battery safety guide

Choose Your Ideal Power Bundle

• 1 PCS – Quick Replacement & Testing: Single cell for flashlight upgrade, tool testing, or individual cell repair
• 10 PCS – Small Pack Rebuilds: Perfect for rebuilding portable power banks and handheld devices
• 20 PCS – Auxiliary & Mobility Modules: Ideal for 24V/36V auxiliary modules, robotics, and compact DIY power packs
• 50 PCS – E-Bike & Scooter Battery Packs: Tailored for ultra-high capacity 36V/48V electric bike packs, e-scooters, and portable energy stations
• 100 PCS – Volume Pack Assembly: Best value for workshops, custom pack assemblers, and volume battery builders

Purchasing in bundles ensures matched cell batches for balanced series and parallel assembly.

180-Day Warranty & Customer Support

Every cell batch supplied by DXF POWER is covered by a 180-day manufacturer warranty against defects in materials and craftsmanship. Our technical support team is always available to assist with charging parameters, pack layout recommendations, and safety practices.

Usage & Safety Guidelines

• Use a dedicated lithium-ion smart charger supporting CC/CV charging mode.
• Standard charging voltage is 4.20V (charge to 4.15V to maximize cycle life).
• Discharge cut-off voltage is 2.5V (3.0V recommended for prolonged cycle life).
• Charge within 0°C to 45°C; discharge within -20°C to 60°C.
• Always inspect cell outer shrink wrap, insulator ring, and terminals for damage before use; rewrap immediately if damaged.
• Never carry loose 21700 batteries in pockets, bags, or purses with metal objects like keys or coins; always store in an insulated battery case.
• Do not short-circuit, crush, incinerate, puncture, or submerge cells in water.
• Store batteries at 3.60V–3.85V per cell in a cool, dry, well-ventilated location away from direct sunlight.
• When building multi-cell packs, always integrate a quality Battery Management System (BMS) with over-current, over-charge, over-discharge, and thermal balance protection.

Why Choose DXF?

• Genuine Grade-A Samsung SDI 53G cells with industry-leading 5300mAh capacity and 15.9A continuous output
• Tested continuous discharge performance and outstanding 1,000+ cycle durability
• Carefully matched batches for balanced series and parallel pack assembly
• Strict factory pre-shipment quality checks and secure protective packaging
• Global warehouse logistics network and professional technical customer support

Perfect For

Engineered for e-mobility builders, DIY pack fabricators, contractors, and flashlight enthusiasts demanding maximum 5300mAh capacity, reliable 15.9A continuous output, and long 1,000-cycle durability for electric bikes, e-scooters, robotics, and custom energy storage modules.

Power your projects with trusted Samsung 21700 performance. Learn more about setups and battery care on the DXF YouTube channel.

The Samsung INR21700-58E 5500mAh 11A Continuous Discharge Li-ion Rechargeable Battery represents the cutting edge of energy density in the 21700 form factor. Manufactured by Samsung SDI and supplied by DXF POWER with strict quality grading, this flat-top unprotected cell delivers a massive 5500mAh typical capacity (5330mAh minimum) on a 3.64V nominal platform with a reliable 11A constant continuous discharge rating. Engineered for maximum runtime per charge, long cycle life, and excellent thermal stability, the 58E is the premier high-capacity power cell for electric bicycles (e-bikes), electric scooters, long-range LED torches, robotics, and custom DIY battery packs.

Watch DXF Batteries in Action

Key Features

• Genuine Samsung SDI 58E Cell: Authentic Grade-A 21700 cylindrical cell engineered by Samsung SDI for class-leading energy density and endurance
• 11A Constant Continuous Discharge: Delivers true 11A continuous current output for dependable energy delivery in electric mobility and power packs
• 5500mAh Ultra-High Capacity: 5500mAh typical (5330mAh minimum) offers exceptional operating runtime for long-distance transport and lighting
• CC-CV Fast Charging Support: Charges to 4.20V with up to 5,500mA maximum charging constant current
• Standard 21700 Bare Cell Format: Flat-top design (21.78 mm maximum diameter × 71.0 mm maximum height) optimized for spot-welded custom battery packs
• Multiple Pack Bundles: Available in 1, 10, 20, 50, and 100 piece packages for single cell replacements or large-scale pack fabrication
• Strict Factory Quality Testing: Cells are inspected for voltage balance, internal resistance, and capacity consistency across every batch

Specifications, Per Battery

• Brand / Manufacturer: Samsung SDI (Supplied by DXF POWER)
• Model / Part No.: INR21700-58E (58E)
• Cell Type: 21700 Cylindrical Rechargeable Lithium-ion (Li-ion)
• Positive Pole: Flat (Flat Top)
• Protection Circuit: None (Unprotected industrial bare cell; requires compatible device-level or pack-level protection)
• Typical Capacity: 5500mAh
• Minimum Capacity: 5330mAh (at 0.2C discharge to 2.5V after standard charge)
• Nominal Voltage: ≤ 3.636V (3.64V)
• Charging Method: CC-CV
• Charging Voltage: 4.20V
• Max. Charging Constant Current: 5,500mA (5.5A)
• Discharge Cut-off Voltage: 2.50V
• Continuous Maximum Discharge Current: 11A
• Storage Temperature: 1 year: -20°C to 23°C; 3 months: -20°C to 45°C; 1 month: -20°C to 60°C
• Maximum Dimensions: Diameter: 21.78 mm (max) × Length: 71.0 mm (max)
• Weight (Max.): 74 g
• Applications: Electric bicycles (e-bikes), electric scooters, high-lumen flashlights, robotics, portable energy storage, and custom DIY battery packs

Package Includes

• Samsung INR21700-58E 5500mAh 11A battery cells, quantity chosen from 1, 10, 20, 50, or 100 PCS
• Protective packaging / cell box
• User manual and battery safety guide

Choose Your Ideal Power Bundle

• 1 PCS – Quick Replacement & Testing: Single cell for flashlight upgrade, tool testing, or individual cell repair
• 10 PCS – Small Pack Rebuilds: Perfect for rebuilding portable power banks and handheld devices
• 20 PCS – Auxiliary & Mobility Modules: Ideal for 24V/36V auxiliary modules, robotics, and compact DIY power packs
• 50 PCS – E-Bike & Scooter Battery Packs: Tailored for ultra-high capacity 36V/48V electric bike packs, e-scooters, and portable energy stations
• 100 PCS – Volume Pack Assembly: Best value for workshops, custom pack assemblers, and volume battery builders

Purchasing in bundles ensures matched cell batches for balanced series and parallel assembly.

180-Day Warranty & Customer Support

Every cell batch supplied by DXF POWER is covered by a 180-day manufacturer warranty against defects in materials and craftsmanship. Our technical support team is always available to assist with charging parameters, pack layout recommendations, and safety practices.

Usage & Safety Guidelines

• Use a dedicated lithium-ion smart charger supporting CC/CV charging mode up to 4.20V.
• Never charge above 4.20V per cell or discharge below 2.50V per cell.
• Never exceed the maximum continuous discharge current of 11A.
• Always inspect cell outer shrink wrap, insulator ring, and terminals for damage before use; rewrap immediately if damaged.
• Never carry loose 21700 batteries in pockets, bags, or purses with metal objects like keys or coins; special insulated battery cases are recommended.
• Do not short-circuit, crush, incinerate, puncture, or submerge cells in water.
• Store batteries at 3.60V–3.85V per cell in a cool, dry, well-ventilated location away from direct sunlight.
• When building multi-cell packs, always integrate a quality Battery Management System (BMS) with over-current, over-charge, over-discharge, and thermal balance protection.

Why Choose DXF?

• Genuine Grade-A Samsung SDI 58E cells with authentic 5500mAh capacity and 11A continuous output
• Tested continuous discharge performance and high energy density
• Carefully matched batches for balanced series and parallel pack assembly
• Strict factory pre-shipment quality checks and secure protective packaging
• Global warehouse logistics network and professional technical customer support

Perfect For

Engineered for e-mobility builders, DIY pack fabricators, contractors, and flashlight enthusiasts demanding maximum 5500mAh capacity, reliable 11A continuous output, and long cycle durability for electric bikes, e-scooters, robotics, and custom energy storage modules.

Power your projects with trusted Samsung 21700 performance. Learn more about setups and battery care on the DXF YouTube channel.

The Sony VTC4 US18650VTC4 2100mAh 30A Continuous Discharge Li-ion Rechargeable Battery is an industry-standard ultra-high drain 18650 cylindrical cell manufactured by Sony / Murata and supplied by DXF POWER with strict quality grading. Designed for extreme high-current discharge demands, this flat-top bare cell delivers a 2100mAh nominal capacity on a 3.6V platform with a massive 30A maximum continuous discharge rating. Widely celebrated for its robust thermal stability, low internal resistance, and minimal voltage sag under heavy load, the VTC4 is an exceptional choice for cordless power tools, RC quadcopters and drones, high-output flashlights, robotics, and custom DIY battery packs.

Watch DXF Batteries in Action

Key Features

• Genuine Sony / Murata VTC4 Cell: Authentic Grade-A 18650 cylindrical power cell legendary for reliable high-drain performance
• 30A Continuous Discharge: Delivers true 30A constant continuous discharge current for high-power devices without thermal cut-off
• 2100mAh High-Drain Capacity: Proven balance between high continuous discharge rate and reliable operating runtime
• Fast CC-CV Charging: Charges efficiently with 2.0A charge current (approx. 2.5 hours charge time to 4.2V)
• Standard 18650 Flat-Top Design: Dimensions of 18.35 mm (+0.15/-0.20 mm) diameter × 65.0 mm (±0.20 mm) height with steel can, ideal for spot-welded custom packs
• Multiple Pack Bundles: Available in 1, 10, 20, 50, and 100 piece packages for single cell replacements or large-scale pack fabrication
• Strict Factory Quality Testing: Cells are inspected for voltage balance, internal resistance, and capacity consistency across every batch

Specifications, Per Battery

• Brand / Manufacturer: Sony / Murata (Supplied by DXF POWER)
• Model / Part No.: US18650VTC4 (VTC4)
• Cell Format: 18650 Cylindrical Rechargeable Lithium-ion (Li-ion)
• Can Material: Steel
• Positive Pole: Flat (Flat Top)
• Protection Circuit: None (Unprotected industrial bare cell; requires compatible device-level or pack-level protection)
• Nominal Capacity: 2100mAh
• Nominal Voltage: 3.6V
• Max. Continuous Discharge Current: 30A
• Cycle Life: 500 cycles
• Charge Method: Constant Current / Constant Voltage (CC-CV)
• Charge Up Voltage: 4.2V ± 0.05V
• Charge Current: 2.0A
• Charge Time: Approx. 2.5 hours
• Energy Density: 451 Wh/L
• Cell Dimensions: Diameter: 18.35 mm (+0.15/-0.20 mm) × Height: 65.0 mm (±0.20 mm)
• Cell Weight: 45.0 g ± 1.5 g
• Applications: Cordless power tools, RC quadcopters & drones, portable scanners, biometric handheld devices, LED torches, and custom DIY battery packs

Package Includes

• Sony VTC4 US18650VTC4 2100mAh 30A battery cells, quantity chosen from 1, 10, 20, 50, or 100 PCS
• Protective packaging / cell box
• User manual and battery safety guide

Choose Your Ideal Power Bundle

• 1 PCS – Quick Replacement & Testing: Single cell for flashlight upgrade, tool testing, or individual cell repair
• 10 PCS – Tool Pack Rebuilds: Perfect for rebuilding cordless power tool battery packs (drills, impact drivers, saws)
• 20 PCS – High-Drain Modules: Ideal for RC quadcopters, robotics, and high-discharge auxiliary modules
• 50 PCS – Power & Mobility Modules: Tailored for electric skateboards, high-output scooters, and high-drain DIY battery packs
• 100 PCS – Volume Pack Assembly: Best value for workshops, custom pack assemblers, and volume battery builders

Purchasing in bundles ensures matched cell batches for balanced series and parallel assembly.

180-Day Warranty & Customer Support

Every cell batch supplied by DXF POWER is covered by a 180-day manufacturer warranty against defects in materials and craftsmanship. Our technical support team is always available to assist with charging parameters, pack layout recommendations, and safety practices.

Usage & Safety Guidelines

• Use a dedicated lithium-ion smart charger supporting CC/CV charging mode up to 4.20V.
• Never charge above 4.25V per cell or discharge below 2.5V per cell.
• Never exceed the maximum continuous discharge current of 30A.
• Always inspect cell outer shrink wrap, insulator ring, and terminals for damage before use; rewrap immediately if damaged.
• Never carry loose 18650 batteries in pockets, bags, or purses with metal objects like keys or coins; always store in an insulated battery case.
• Do not short-circuit, crush, incinerate, puncture, or submerge cells in water.
• Store batteries at 3.60V–3.85V per cell in a cool, dry, well-ventilated location away from direct sunlight.
• When building multi-cell packs, always integrate a quality Battery Management System (BMS) with over-current, over-charge, over-discharge, and thermal balance protection.

Why Choose DXF?

• Genuine Grade-A Sony / Murata VTC4 cells with true 2100mAh capacity and 30A high-drain output
• Tested continuous discharge performance under demanding operational loads
• Carefully matched batches for balanced series and parallel pack assembly
• Strict factory pre-shipment quality checks and secure protective packaging
• Global warehouse logistics network and professional technical customer support

Perfect For

Engineered for contractors, RC hobbyists, drone pilots, and DIY pack fabricators demanding dependable 30A continuous high-drain output and proven reliability for heavy-duty power tools, quadcopters, robotics, and custom energy modules.

Power your projects with trusted Sony 18650 performance. Learn more about setups and battery care on the DXF YouTube channel.

The Sony VTC5A US18650VTC5A 2500mAh 30A Continuous Discharge Li-ion Rechargeable Battery is widely regarded as the gold standard in high-drain 18650 cylindrical cells. Manufactured by Sony / Murata and supplied by DXF POWER with strict quality grading, this flat-top bare cell delivers a solid 2500mAh capacity on a 3.6V–3.7V nominal platform with a true 30A constant continuous discharge rating. Celebrated for its low internal resistance, superb voltage retention under intense loads, and reliable thermal stability, the VTC5A is the top-tier choice for cordless power tools, RC models, FPV quadcopters, robotics, high-output flashlights, and custom DIY battery packs.

Watch DXF Batteries in Action

Key Features

• Genuine Sony / Murata VTC5A Cell: Authentic Grade-A 18650 cylindrical power cell acclaimed for unmatched high-drain stability and low internal resistance
• 30A Constant Continuous Discharge: Delivers true 30A continuous current output without thermal cut-off, maintaining robust voltage under high amperage
• 2500mAh High-Performance Capacity: Optimally balanced between high continuous current capability and dependable runtime
• CC-CV Charging Support: Recharges efficiently with 4.20V ± 0.05V termination voltage
• Standard 18650 Flat-Top Design: Standard dimensions of 18.4 mm diameter × 65.0 mm height with steel can, ideal for spot welding and custom pack builds
• Multiple Pack Bundles: Available in 1, 10, 20, 50, and 100 piece packages for single cell replacements or large-scale pack fabrication
• Strict Factory Quality Testing: Cells are inspected for voltage balance, internal resistance, and capacity consistency across every batch

Specifications, Per Battery

• Brand / Manufacturer: Sony / Murata (Supplied by DXF POWER)
• Model / Part No.: US18650VTC5A (VTC5A / VTC5 Series)
• Cell Format: 18650 Cylindrical Rechargeable Lithium-ion (Li-ion)
• Chemistry: Lithium-ion (Li-ion)
• Positive Pole: Flat (Flat Top)
• Protection Circuit: Without (Unprotected industrial bare cell; requires compatible device-level or pack-level protection)
• Capacity: 2500mAh
• Rated / Nominal Voltage: 3.6V – 3.7V
• Charging Cycle Termination Voltage: 4.20V ± 0.05V
• Charging Method: Constant Current / Constant Voltage (CC-CV)
• Max. Discharge Current: 30A (Continuous)
• Discharge Cut-off Voltage: 2.50V (Do not discharge deeper than 2.5V)
• Cell Dimensions: Diameter: 18.4 mm × Height: 65.0 mm
• Cell Weight: 46 g
• Applications: Cordless power tools, RC models & quadcopters, electric skateboards, LED flashlights, robotics, and custom DIY battery packs

Package Includes

• Sony VTC5A US18650VTC5A 2500mAh 30A battery cells, quantity chosen from 1, 10, 20, 50, or 100 PCS
• Protective packaging / cell box
• User manual and battery safety guide

Choose Your Ideal Power Bundle

• 1 PCS – Quick Replacement & Testing: Single cell for flashlight upgrade, tool testing, or individual cell repair
• 10 PCS – Tool Pack Rebuilds: Perfect for rebuilding cordless power tool battery packs (drills, impact drivers, saws)
• 20 PCS – High-Drain Modules: Ideal for RC quadcopters, robotics, and high-discharge auxiliary modules
• 50 PCS – Power & Mobility Modules: Tailored for electric skateboards, high-output scooters, and high-drain DIY battery packs
• 100 PCS – Volume Pack Assembly: Best value for workshops, custom pack assemblers, and volume battery builders

Purchasing in bundles ensures matched cell batches for balanced series and parallel assembly.

180-Day Warranty & Customer Support

Every cell batch supplied by DXF POWER is covered by a 180-day manufacturer warranty against defects in materials and craftsmanship. Our technical support team is always available to assist with charging parameters, pack layout recommendations, and safety practices.

Usage & Safety Guidelines

• Use a dedicated lithium-ion smart charger supporting CC/CV charging mode up to 4.20V.
• Never charge above 4.25V per cell or discharge below 2.50V per cell.
• Never exceed the maximum continuous discharge current of 30A.
• Always inspect cell outer shrink wrap, insulator ring, and terminals for damage before use; rewrap immediately if damaged.
• Never carry loose 18650 batteries in pockets, bags, or purses with metal objects like keys or coins; always store in an insulated battery case.
• Do not short-circuit, crush, incinerate, puncture, or submerge cells in water.
• Store batteries at 3.60V–3.85V per cell in a cool, dry, well-ventilated location away from direct sunlight.
• When building multi-cell packs, always integrate a quality Battery Management System (BMS) with over-current, over-charge, over-discharge, and thermal balance protection.

Why Choose DXF?

• Genuine Grade-A Sony / Murata VTC5A cells with authentic 2500mAh capacity and 30A high-drain output
• Tested continuous discharge performance under demanding operational loads
• Carefully matched batches for balanced series and parallel pack assembly
• Strict factory pre-shipment quality checks and secure protective packaging
• Global warehouse logistics network and professional technical customer support

Perfect For

Engineered for contractors, RC hobbyists, drone pilots, and DIY pack fabricators demanding dependable 30A continuous high-drain output and proven reliability for heavy-duty power tools, quadcopters, robotics, and custom energy modules.

Power your projects with trusted Sony 18650 performance. Learn more about setups and battery care on the DXF YouTube channel.

The Sony VTC6 US18650VTC6 3000mAh 30A Continuous Discharge Li-ion Rechargeable Battery is an industry-leading high-capacity, high-drain 18650 cylindrical cell manufactured by Sony / Murata and supplied by DXF POWER with strict quality grading. Widely celebrated as one of the best all-around 18650 cells on the market, this flat-top bare cell delivers a massive 3000mAh nominal capacity on a 3.6V platform with a robust 15A continuous discharge rating (up to 30A continuous when monitored with an 80°C temperature cut). Combining generous runtime with serious high-current discharge capability, it is the premier choice for cordless power tools, high-lumen LED torches, RC models, robotics, and custom DIY battery packs.

Watch DXF Batteries in Action

Key Features

• Genuine Sony / Murata VTC6 Cell: Authentic Grade-A 18650 cylindrical power cell acclaimed for its optimal combination of 3000mAh capacity and high-drain output
• High Continuous Discharge Rating: Delivers 15A constant continuous current without temperature cutoff, and up to 30A continuous with 80°C thermal protection
• 3000mAh High Capacity: 3000mAh nominal capacity provides extended runtime across demanding high-drain electronics
• CC-CV Charging Support: Recharges efficiently with standard CC-CV charging method to 4.20V
• Standard 18650 Flat-Top Design: Dimensions of 18.2 mm diameter × 65.0 mm height with steel can, ideal for spot-welded custom packs
• Multiple Pack Bundles: Available in 1, 10, 20, 50, and 100 piece packages for single cell replacements or large-scale pack fabrication
• Strict Factory Quality Testing: Cells are inspected for voltage balance, internal resistance, and capacity consistency across every batch

Specifications, Per Battery

• Brand / Manufacturer: Sony / Murata (Supplied by DXF POWER)
• Model / Part No.: US18650VTC6 (VTC6)
• Cell Format: 18650 Cylindrical Rechargeable Lithium-ion (Li-ion)
• Chemistry: Lithium-ion (Li-ion)
• Positive Pole: Flat (Flat Top)
• Protection Circuit: Without (Unprotected industrial bare cell; requires compatible device-level or pack-level protection)
• Nominal Capacity: 3000mAh
• Nominal / Rated Voltage: 3.6V
• Charging Method: Constant Current / Constant Voltage (CC-CV)
• Charging Termination Voltage: 4.20V ± 0.05V
• Discharge Cut-off Voltage: 2.50V (Do not discharge deeper than 2.5V)
• Max. Continuous Discharge: 15A (without temp cut) / 30A (with 80°C thermal cut)
• Cell Dimensions: Diameter: 18.2 mm × Height: 65.0 mm
• Cell Weight: Approx. 48 g
• Applications: Cordless power tools, high-lumen flashlights & torches, RC models, robotics, and custom DIY battery packs

Package Includes

• Sony VTC6 US18650VTC6 3000mAh 30A battery cells, quantity chosen from 1, 10, 20, 50, or 100 PCS
• Protective packaging / cell box
• User manual and battery safety guide

Choose Your Ideal Power Bundle

• 1 PCS – Quick Replacement & Testing: Single cell for flashlight upgrade, tool testing, or individual cell repair
• 10 PCS – Tool Pack Rebuilds: Perfect for rebuilding cordless power tool battery packs (drills, impact drivers, saws)
• 20 PCS – High-Output Modules: Ideal for RC quadcopters, robotics, and high-discharge auxiliary modules
• 50 PCS – Power & Mobility Modules: Tailored for electric skateboards, high-output scooters, and high-drain DIY battery packs
• 100 PCS – Volume Pack Assembly: Best value for workshops, custom pack assemblers, and volume battery builders

Purchasing in bundles ensures matched cell batches for balanced series and parallel assembly.

180-Day Warranty & Customer Support

Every cell batch supplied by DXF POWER is covered by a 180-day manufacturer warranty against defects in materials and craftsmanship. Our technical support team is always available to assist with charging parameters, pack layout recommendations, and safety practices.

Usage & Safety Guidelines

• Use a dedicated lithium-ion smart charger supporting CC/CV charging mode up to 4.20V.
• Never charge above 4.25V per cell or discharge below 2.50V per cell.
• Do not exceed cell surface temperature of 80°C during heavy continuous discharge.
• Always inspect cell outer shrink wrap, insulator ring, and terminals for damage before use; rewrap immediately if damaged.
• Never carry loose 18650 batteries in pockets, bags, or purses with metal objects like keys or coins; always store in an insulated battery case.
• Do not short-circuit, crush, incinerate, puncture, or submerge cells in water.
• Store batteries at 3.60V–3.85V per cell in a cool, dry, well-ventilated location away from direct sunlight.
• When building multi-cell packs, always integrate a quality Battery Management System (BMS) with over-current, over-charge, over-discharge, and thermal balance protection.

Why Choose DXF?

• Genuine Grade-A Sony / Murata VTC6 cells with authentic 3000mAh capacity and 30A high-drain output
• Tested continuous discharge performance under demanding operational loads
• Carefully matched batches for balanced series and parallel pack assembly
• Strict factory pre-shipment quality checks and secure protective packaging
• Global warehouse logistics network and professional technical customer support

Perfect For

Engineered for contractors, RC hobbyists, flashlight enthusiasts, and DIY pack fabricators demanding an ideal balance of 3000mAh capacity and 30A high-drain capability for heavy-duty power tools, high-lumen torches, robotics, and custom energy modules.

Power your projects with trusted Sony 18650 performance. Learn more about setups and battery care on the DXF YouTube channel.

The Sony VTC6A US21700VTC6A 4000mAh 30A Continuous Discharge Li-ion Rechargeable Battery is an industry-benchmark high-capacity, high-drain 21700 cylindrical power cell manufactured by Sony / Murata and supplied by DXF POWER with strict quality grading. Designed for extreme continuous output, this flat-top bare cell delivers a generous 4000mAh nominal capacity on a 3.6V platform with a massive 30A constant continuous discharge rating (and up to 40A continuous when monitored with an 80°C temperature cut). Renowned for its ultra-low internal resistance (~0.03 Ω), outstanding voltage retention under heavy amp draw, and robust thermal stability, the VTC6A is the premier choice for heavy-duty cordless power tools, RC models, electric skateboards, e-bikes, robotics, and custom DIY battery packs.

Watch DXF Batteries in Action

Key Features

• Genuine Sony / Murata VTC6A Cell: Authentic Grade-A 21700 cylindrical power cell acclaimed for its superior balance of 4000mAh capacity and high-drain power delivery
• 30A Continuous Discharge: Delivers true 30A constant continuous discharge current without thermal cut-off (and up to 40A continuous with 80°C thermal protection)
• 4000mAh High Capacity: 4000mAh nominal capacity provides substantial runtime for power-hungry devices
• Ultra-Low Internal Resistance: Measured at approx. 0.03 Ω for minimal voltage sag and efficient energy delivery under high load
• Standard 21700 Flat-Top Design: Dimensions of 21.2 mm diameter × 69.6 mm length with metal bottom and flat top terminal, optimized for custom spot welding
• Multiple Pack Bundles: Available in 1, 10, 20, 50, and 100 piece packages for single cell replacements or large-scale pack fabrication
• Strict Factory Quality Testing: Cells are inspected for voltage balance, internal resistance, and capacity consistency across every batch

Specifications, Per Battery

• Brand / Manufacturer: Sony / Murata (Supplied by DXF POWER)
• Model / Part No.: US21700VTC6A (VTC6A)
• Cell Format: 21700 Cylindrical Rechargeable Lithium-ion (Li-ion)
• Positive Pole: Flat (Flat Top)
• Protection Circuit: Without (Unprotected industrial bare cell; requires compatible device-level or pack-level protection)
• Nominal Capacity: 4000mAh
• Nominal Voltage: 3.6V
• Max. Continuous Discharge Current: 30A (up to 40A with 80°C temperature cut)
• Charging Voltage: 4.2V (Termination current: 0.1A)
• Charging Method: Constant Current / Constant Voltage (CC-CV)
• Calculated Internal Resistance: Approx. 0.03 Ω
• Cell Dimensions: Diameter: 21.2 mm × Length: 69.6 mm
• Cell Weight: 72.1 g
• Applications: Cordless power tools, RC models, electric skateboards, e-bikes, robotics, and custom DIY battery packs

Package Includes

• Sony VTC6A US21700VTC6A 4000mAh 30A battery cells, quantity chosen from 1, 10, 20, 50, or 100 PCS
• Protective packaging / cell box
• User manual and battery safety guide

Choose Your Ideal Power Bundle

• 1 PCS – Quick Replacement & Testing: Single cell for tool testing, flashlight upgrade, or individual cell repair
• 10 PCS – Cordless Tool Pack Rebuilds: Perfect for rebuilding heavy-duty cordless power tool battery packs (drills, grinders, saws)
• 20 PCS – High-Output Modules: Ideal for RC models, robotics, and compact high-drain DIY power packs
• 50 PCS – Mobility & Energy Modules: Tailored for high-performance electric skateboards, e-bikes, and portable energy stations
• 100 PCS – Master Builder Bulk Set: Best value for workshops, custom pack assemblers, and volume battery builders

Purchasing in bundles ensures matched cell batches for balanced series and parallel assembly.

180-Day Warranty & Customer Support

Every cell batch supplied by DXF POWER is covered by a 180-day manufacturer warranty against defects in materials and craftsmanship. Our technical support team is always available to assist with charging parameters, pack layout recommendations, and safety practices.

Usage & Safety Guidelines

• Use a dedicated lithium-ion smart charger supporting CC/CV charging mode up to 4.20V.
• Never charge above 4.25V per cell or discharge below 2.50V per cell.
• Do not exceed cell surface temperature of 80°C during heavy continuous discharge.
• Always inspect cell outer shrink wrap, insulator ring, and terminals for damage before use; rewrap immediately if damaged.
• Never carry loose 21700 batteries in pockets, bags, or purses with metal objects like keys or coins; always store in an insulated battery case.
• Do not short-circuit, crush, incinerate, puncture, or submerge cells in water.
• Store batteries at 3.60V–3.85V per cell in a cool, dry, well-ventilated location away from direct sunlight.
• When building multi-cell packs, always integrate a quality Battery Management System (BMS) with over-current, over-charge, over-discharge, and thermal balance protection.

Why Choose DXF?

• Genuine Grade-A Sony / Murata VTC6A cells with true 4000mAh capacity and 30A/40A high-drain output
• Tested continuous discharge performance under demanding operational loads
• Carefully matched batches for balanced series and parallel pack assembly
• Strict factory pre-shipment quality checks and secure protective packaging
• Global warehouse logistics network and professional technical customer support

Perfect For

Engineered for contractors, RC hobbyists, e-mobility builders, and DIY pack fabricators demanding dependable 4000mAh capacity and extreme 30A/40A continuous discharge for high-power cordless tools, electric skateboards, robotics, and custom energy modules.

Power your projects with trusted Sony 21700 performance. Learn more about setups and battery care on the DXF YouTube channel.