The EVE INR21700-40PL 4000mAh 70A Continuous Discharge 21700 Li-ion Rechargeable Battery is an ultra-high-drain cylindrical power cell manufactured by EVE Energy and supplied by DXF POWER with strict quality grading. Engineered specifically for high-load industrial machinery and extreme-rate battery pack construction, this flat-top bare cell delivers 4000mAh nominal capacity on a 3.6V nominal platform with an industry-leading continuous discharge capability of up to 70A. Featuring cutting-edge electrode formulation, ultra-low internal impedance, and exceptional heat tolerance, the EVE 40PL delivers sustained current under demanding loads with minimal voltage depression, making it the premier choice for heavy-duty cordless tools, electric racing bikes, electric watercraft, and custom DIY high-output power modules.

Watch DXF Batteries in Action

Key Features

• Genuine EVE INR21700-40PL Cell: Authentic Grade-A 21700 cylindrical cell engineered by EVE Energy for extreme-output applications
• 4000mAh High Capacity: Generous 4000mAh capacity provides an ideal balance between sustained high energy density and extreme power delivery
• Extreme 70A Continuous Discharge: Delivers continuous discharge current up to 70A, built to handle heavy motor starts and high-draw demands
• Ultra-Low Internal Resistance: Advanced tab and electrode construction minimizes thermal rise and preserves voltage under heavy loads
• 0.5C–1C Flexible Charging: Supports reliable CC-CV charging from 2.0A (0.5C) up to 4.0A (1C) for efficient recharges
• Standard 21700 Flat-Top Format: Dimensions of 21.1 mm diameter × 70.1 mm length and ~67 g weight, ideal for precision spot welding and pack assembly
• Multiple Pack Bundles: Available in 1, 10, 20, 50, and 100 piece packages for individual tool rebuilds or volume battery pack production
• Strict Factory Quality Testing: Cells are inspected for voltage balance, internal resistance, and capacity consistency across every batch

Specifications, Per Battery

• Brand / Manufacturer: EVE (EVE Energy Co., Ltd. / Supplied by DXF POWER)
• Model / Part No.: INR21700-40PL (40PL)
• Cell Format: 21700 Cylindrical Rechargeable Lithium-ion (Li-ion)
• Cell Chemistry: Lithium-Nickel-Manganese-Cobalt (INR)
• Positive Pole: Flat (Flat Top)
• Protection Electronics: No (Unprotected industrial bare cell; requires compatible high-drain BMS / protection circuit)
• Nominal Capacity: 4000mAh
• Nominal Voltage: 3.6V
• Maximum Voltage (Charge): 4.2V
• Minimum Voltage (Cut-Off): 2.5V
• Discharge Current: Up to 70A continuous
• Charging Current: 0.5C to 1C (approx. 2A to 4A CC-CV)
• Charging Method: Constant Current / Constant Voltage (CC-CV)
• Rechargeable: Yes
• Cell Dimensions: Diameter: 21.1 mm × Length: 70.1 mm
• Cell Weight: Approx. 67 g
• Applications: Extreme-power cordless power tools, electric racing motorcycles, high-wattage e-bikes, electric skateboards, lawn and garden equipment, and custom DIY high-power battery packs

Package Includes

• EVE INR21700-40PL 4000mAh 70A 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 – Single Cell Replacement: Quick replacement for high-drain torches, individual test benches, or handheld tools
• 10 PCS – High-Power Tool Modules: Ideal for building heavy-duty 5-cell / 10-cell 18V-20V cordless power tool packs
• 20 PCS – High-Output Mobile Modules: Perfect for 36V/40V lawn mowers, industrial power equipment, and robotics
• 50 PCS – E-Bike & Motorcycle Battery Packs: Optimized quantity for assembling high-current 48V/60V/72V electric vehicle packs
• 100 PCS – Volume Assembly Bulk Set: Best value for workshops, battery rebuilders, and custom pack manufacturers

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 rating of 70A.
• 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; practical storage in an insulated battery case is essential.
• 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 high-current Battery Management System (BMS) with over-current, over-charge, over-discharge, and thermal balance protection.

Why Choose DXF?

• Genuine Grade-A EVE INR21700-40PL cells with authentic 4000mAh capacity and up to 70A continuous output
• Extreme-rate INR chemistry with ultra-low internal impedance and robust thermal stability
• 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 power tool rebuilders, EV mechanics, and DIY pack fabricators demanding extreme continuous discharge up to 70A, 4000mAh capacity, and ultra-low internal resistance for heavy-duty tools, high-speed electric mobility, and custom energy modules.

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

The EVE INR21700-50E 5000mAh 15A Continuous Discharge 21700 Li-ion Rechargeable Battery is an exceptional high-energy-density cylindrical bare cell manufactured by EVE Energy and supplied by DXF POWER with strict quality grading. Optimized for extended-range light electric vehicles and high-capacity energy storage, this flat-top bare cell delivers a robust 5000mAh (5.0Ah / 18.25Wh) nominal capacity on a 3.65V nominal platform with a dependable 15A maximum continuous discharge rating. Boasting an impressive gravimetric energy density of 257 Wh/kg, a nickel-based cathode paired with a graphite anode, and proven thermal stability, the EVE 50E is the preferred industry standard for electric bicycles, electric scooters, lightweight motorcycles, backup power banks, and custom DIY battery packs.

Watch DXF Batteries in Action

Key Features

• Genuine EVE INR21700-50E Cell: Authentic Grade-A 21700 cylindrical bare cell manufactured by global tier-one battery producer EVE Energy
• 5000mAh High-Density Capacity: Full 5.0Ah (18.25Wh) capacity delivers maximum endurance and range for light electric vehicles and portable equipment
• 15A Continuous Discharge: Dependable 15A continuous discharge current capability supports steady power demands without excessive heat generation
• Superior Energy Density (257 Wh/kg): Advanced nickel-based cathode and graphite anode chemistry ensures high volumetric efficiency and lightweight battery packs
• Stable 3.65V Platform: Reliable CC-CV charging profile up to 4.20V with standard 2.50V discharge cut-off
• Standard 21700 Flat-Top Design: Cylindrical dimensions of ~21.2 mm diameter × ~70.5 mm length and ~71 g weight, ideal for precision spot welding and pack fabrication
• Multiple Pack Bundles: Available in 1, 10, 20, 50, and 100 piece packages for individual 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: EVE Energy (Supplied by DXF POWER)
• Model / Part No.: INR21700-50E (50E)
• Cell Format: 21700 Cylindrical Rechargeable Lithium-ion (Li-ion)
• Positive Pole: Flat (Flat Top)
• Protection Circuit: Without (Unprotected industrial bare cell; requires compatible BMS / protection circuit)
• Nominal Capacity: 5000mAh (5.0Ah)
• Energy Capacity: 18.25 Wh
• Nominal Voltage: 3.65V
• Charging Voltage: 4.20V
• Discharging Cut-Off Voltage: 2.50V
• Max Continuous Discharge Current: 15A continuous (approx. 3C)
• Gravimetric Energy Density: Approx. 257 Wh/kg
• Gravimetric Power Density: Approx. 771 W/kg
• Positive Electrode (Cathode): Nickel-based (Ni-based)
• Negative Electrode (Anode): Graphite
• Charging Method: Constant Current / Constant Voltage (CC-CV)
• Cell Dimensions: Cylindrical 21700 (Volume: approx. 24.93 cm³)
• Cell Weight: Approx. 71 g
• Country of Origin: China
• Applications: Electric bicycles (e-bikes), electric scooters, light electric motorcycles, portable power stations, energy storage systems, and custom DIY battery packs

Package Includes

• EVE INR21700-50E 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 – Single Cell Replacement: Quick replacement for high-drain torches, individual test benches, or handheld tools
• 10 PCS – Compact Device Modules: Ideal for portable power banks, camping gear, and handheld equipment
• 20 PCS – High-Capacity Modules: Perfect for small energy storage systems, robotics, and auxiliary power units
• 50 PCS – E-Bike & Scooter Battery Packs: Optimized quantity for assembling long-range 36V/48V light electric vehicle packs
• 100 PCS – Volume Assembly Bulk Set: Best value for workshops, battery rebuilders, and custom pack manufacturers

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 15A.
• 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; practical storage in an insulated battery case is essential.
• 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 EVE INR21700-50E cells with authentic 5000mAh capacity and 15A continuous output
• High-energy-density chemistry (257 Wh/kg) with stable voltage retention and excellent cycle endurance
• 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 light electric vehicle builders, scooter mechanics, and DIY pack fabricators demanding maximum 5000mAh capacity, 257 Wh/kg energy density, and reliable 15A continuous discharge for extended range and long cycle life.

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

The EVE INR21700-40P 4000mAh 40A Continuous Discharge 21700 Li-ion Rechargeable Battery is an industrial powerhouse cell manufactured by EVE Energy and supplied by DXF POWER with strict quality grading. Built for extreme current demands, this flat-top bare cell delivers a generous 4000mAh nominal capacity on a 3.6V nominal platform with a formidable 40A (10C) continuous discharge rating and an ultra-low internal resistance of just 9.1 mΩ. Supporting high-speed charging up to 6A, the EVE 40P minimizes voltage sag under aggressive power loads while maintaining superior thermal stability, making it one of the most capable 21700 bare cells on the market for cordless heavy-duty power tools, high-performance electric motorcycles, e-bikes, and custom DIY battery packs.

Watch DXF Batteries in Action

Key Features

• Genuine EVE INR21700-40P Cell: Authentic Grade-A 21700 cylindrical bare cell manufactured by global lithium-ion leader EVE Energy
• 4000mAh High-Drain Capacity: 4000mAh nominal capacity provides an exceptional balance of substantial runtime and massive current output
• 40A Continuous Discharge (10C): Massive 40A continuous discharge rating delivers uninterrupted power for heavy motor drives and high-wattage equipment
• Ultra-Low Internal Resistance (9.1 mΩ): Minimal internal impedance ensures exceptional voltage retention under sustained maximum loads
• Rapid 6A Fast Charging: Supports up to 6A maximum charging current for fast turnaround times in high-demand environments
• Premium INR Chemistry: Lithium-Nickel-Manganese-Cobalt chemistry engineered for thermal resilience and cycle longevity
• Standard 21700 Flat-Top Design: Dimensions of 21.2 mm diameter × 70.0 mm length and ~68 g weight, ideal for precision spot welding and pack fabrication
• Multiple Pack Bundles: Available in 1, 10, 20, 50, and 100 piece packages for individual tool repairs or volume battery assembly
• Strict Factory Quality Testing: Cells are inspected for voltage balance, internal resistance, and capacity consistency across every batch

Specifications, Per Battery

• Brand / Manufacturer: EVE (EVE Energy Co., Ltd. / Supplied by DXF POWER)
• Model / Part No.: INR21700-40P (40P)
• Cell Format: 21700 Cylindrical Rechargeable Lithium-ion (Li-ion)
• Cell Chemistry: Lithium-Nickel-Manganese-Cobalt (INR)
• Positive Pole: Flat (Flat Top)
• Protection Circuit: Without (Unprotected industrial bare cell; requires compatible BMS / protection circuit)
• Nominal Capacity: 4000mAh
• Nominal Voltage: 3.6V
• Charging Voltage: 4.20V
• Discharge Cut-Off Voltage: 2.50V
• Continuous Discharge Current: 40A continuous (10C rate)
• Internal Resistance: Approx. 9.1 mΩ
• Maximum Charging Current: 6A (CC-CV)
• Rechargeable: Yes
• Cell Dimensions: Diameter: 21.2 mm × Length: 70.0 mm
• Cell Weight: Approx. 68 g
• Applications: Heavy-duty cordless power tools, electric motorcycles, high-power electric bicycles (e-bikes), electric skateboards, lawn and garden machinery, and custom DIY battery packs

Package Includes

• EVE INR21700-40P 4000mAh 40A 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 – Single Cell Replacement: Quick replacement for high-drain torches, individual test benches, or handheld tools
• 10 PCS – High-Power Tool Modules: Ideal for building heavy-duty 5-cell / 10-cell 18V-20V cordless power tool packs
• 20 PCS – High-Output Mobile Modules: Perfect for 36V/40V lawn mowers, industrial power equipment, and robotics
• 50 PCS – E-Bike & Motorcycle Battery Packs: Optimized quantity for assembling high-current 48V/60V/72V electric vehicle packs
• 100 PCS – Volume Assembly Bulk Set: Best value for workshops, battery rebuilders, and custom pack manufacturers

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 40A.
• 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; practical storage in an insulated battery case is essential.
• 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 EVE INR21700-40P cells with authentic 4000mAh capacity and 40A continuous output
• High-discharge INR chemistry with ultra-low 9.1 mΩ internal resistance and 6A rapid charging
• 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 power tool rebuilders, EV mechanics, and DIY pack fabricators demanding extreme 40A continuous discharge, 4000mAh capacity, and ultra-low internal resistance for heavy-duty tools, high-speed electric mobility, and custom energy modules.

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

The EVE INR21700-50PL 5000mAh 125A Continuous Discharge 21700 Li-ion Rechargeable Battery is a flagship tabless ultra-high-drain cylindrical power cell engineered by EVE Energy and supplied by DXF POWER with strict quality grading. Designed for the most demanding power-dense applications on the planet, this flat-top bare cell combines an enormous 5000mAh nominal capacity on a 3.6V nominal platform with a groundbreaking 125A continuous discharge capability. Leveraging next-generation tabless electrode architecture to achieve microscopic internal resistance and virtually eliminate thermal concentration, the EVE 50PL maintains outstanding voltage output and cool operating temperatures under sustained extreme current draw. It is the definitive power choice for heavy-duty commercial tools, electric racing bikes, high-output marine drives, and custom DIY high-power battery packs.

Watch DXF Batteries in Action

Key Features

• Genuine EVE INR21700-50PL Cell: Authentic Grade-A 21700 cylindrical power cell manufactured by tier-one global leader EVE Energy
• Massive 5000mAh Capacity: High-density 5000mAh capacity provides exceptional runtime alongside extreme current delivery
• Breakthrough 125A Continuous Discharge: Industry-leading 125A continuous discharge current capability for maximum-wattage drive systems
• Next-Gen Tabless Architecture: Advanced current-collector design delivers ultra-low internal impedance and superior heat dissipation
• Flat Discharge Voltage Curve: Retains high operating voltage under heavy loads, minimizing voltage sag and maximizing useful work output
• Standard 21700 Flat-Top Design: Standard dimensions of 21.15 mm diameter × 70.15 mm height and ~72 g weight, ideal for precision spot welding and pack fabrication
• Multiple Pack Bundles: Available in 1, 10, 20, 50, and 100 piece packages for prototype builds, tool conversions, 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: EVE (EVE Energy Co., Ltd. / Supplied by DXF POWER)
• Model / Part No.: INR21700-50PL (50PL / INR21700/50PL)
• Cell Format: 21700 Cylindrical Rechargeable Lithium-ion (Li-ion)
• Cell Chemistry: Lithium-Nickel-Manganese-Cobalt (INR)
• Positive Pole: Flat (Flat Top)
• Protective Circuit: Without (Unprotected industrial bare cell; requires compatible high-current BMS / protection circuit)
• Nominal / Max Capacity: 5000mAh
• Nominal Voltage: 3.6V
• Charging Voltage: 4.20V
• Discharge Cut-Off Voltage: 2.50V (discharge not deeper than 2.5V)
• Continuous Discharge Current: 125A continuous
• Charging Method: Constant Current / Constant Voltage (CC-CV)
• Rechargeable: Yes
• Cell Dimensions: Diameter: 21.15 mm × Height: 70.15 mm
• Cell Weight: Approx. 72 g
• Applications: Extreme-duty cordless power tools, electric racing motorcycles, high-power electric bicycles (e-bikes), electric hydrofoils, high-rate robotics, and custom DIY high-power battery packs

Package Includes

• EVE INR21700-50PL 5000mAh 125A 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 – Single Cell Replacement: Quick replacement for high-drain torches, individual test benches, or handheld tools
• 10 PCS – High-Power Tool Modules: Ideal for building heavy-duty 5-cell / 10-cell 18V-20V cordless power tool packs
• 20 PCS – High-Output Mobile Modules: Perfect for 36V/40V lawn mowers, industrial power equipment, and robotics
• 50 PCS – E-Bike & Motorcycle Battery Packs: Optimized quantity for assembling high-current 48V/60V/72V electric vehicle packs
• 100 PCS – Volume Assembly Bulk Set: Best value for workshops, battery rebuilders, and custom pack manufacturers

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 125A.
• 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; practical storage in an insulated battery case is essential.
• 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 high-current Battery Management System (BMS) with over-current, over-charge, over-discharge, and thermal balance protection.

Why Choose DXF?

• Genuine Grade-A EVE INR21700-50PL cells with authentic 5000mAh capacity and 125A continuous output
• Next-generation tabless INR chemistry with microscopic internal impedance and extreme heat tolerance
• 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 power tool rebuilders, EV mechanics, and DIY pack fabricators demanding extreme continuous discharge up to 125A, massive 5000mAh capacity, and ultra-low internal resistance for heavy-duty tools, high-speed electric mobility, and custom energy modules.

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