The DMEGC INR21700-45E 4500mAh 9A Continuous Discharge 21700 Li-ion Rechargeable Battery is a high-performance cylindrical power cell manufactured by DMEGC and supplied by DXF POWER with strict quality grading. Designed for extended operating endurance and reliable power delivery, this flat-top bare cell features a generous 4500mAh nominal capacity (4400mAh minimum) on a 3.7V nominal platform with a dependable 2C (9.0A) maximum continuous discharge rating and over 1,000 cycle life (80% DOD). Known for low internal resistance, stable thermal performance, and eco-friendly construction, the DMEGC 45E is an ideal choice for electric vehicles (EVs), light electric mobility, cordless power tools, energy storage systems, and custom DIY battery packs.

Watch DXF Batteries in Action

Key Features

• Genuine DMEGC INR21700-45E Cell: Authentic Grade-A 21700 cylindrical power cell manufactured by leading producer DMEGC
• 4500mAh High Capacity: Substantial 4500mAh nominal capacity (4400mAh minimum) provides long-lasting runtimes across portable devices and high-capacity modules
• 9.0A (2C) Continuous Discharge Output: Stable 9.0A continuous discharge capability supports steady power demands with low thermal generation
• Extended Cycle Life: Engineered for over 1,000 charge cycles at 80% DOD, ensuring exceptional durability and cost efficiency
• Fast 1C Charging: Supports up to 1C (4.5A) charge current for fast turnaround times
• Low Internal Resistance: Low IR profile ensures efficient power transfer and minimal voltage sag under load
• Standard 21700 Flat-Top Design: 21 mm diameter × 70 mm height and ~70 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: DMEGC (Supplied by DXF POWER)
• Model / Part No.: INR21700-45E (21700-45E)
• Cell Format: 21700 Cylindrical Rechargeable Lithium-ion (Li-ion)
• Cell Chemistry: INR (Lithium Nickel Manganese Cobalt Oxide)
• Positive Terminal: Flat (Flat Top)
• Protection Circuit: Without (Unprotected industrial bare cell; requires compatible BMS / protection circuit)
• Nominal Capacity: 4500mAh
• Minimum Capacity: 4400mAh
• Nominal Voltage: 3.7V
• Charge Voltage: 4.2V ± 0.05V
• Discharge Cut-Off Voltage: 2.50V
• Maximum Continuous Discharge Current: 2C (9.0A continuous)
• Maximum Charge Current: 1C (4.5A CC-CV)
• Cycle Life: >1,000 cycles (80% DOD)
• Charging Method: Constant Current / Constant Voltage (CC-CV)
• Rechargeable: Yes
• Cell Dimensions: Diameter: 21 mm × Height: 70 mm
• Cell Weight: Approx. 70 g
• Applications: Electric vehicles (EVs), electric bikes/scooters, cordless power tools, portable electronics, energy storage systems, and custom DIY battery packs

Package Includes

• DMEGC INR21700-45E 4500mAh 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 – Single Cell Replacement: Quick replacement for high-drain torches, individual test benches, or handheld tools
• 10 PCS – Portable Light & Device Packs: Ideal for high-lumen multi-cell torches, camping lanterns, and small electronics
• 20 PCS – Compact Energy Modules: Perfect for small portable power banks, robotics, and auxiliary power supplies
• 50 PCS – EV & E-Bike Battery Rebuilds: Sized for assembling and refurbishing standard 36V/48V light electric vehicle packs
• 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.
• Never exceed the maximum continuous discharge current of 9.0A.
• 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 DMEGC INR21700-45E cells with authentic 4500mAh capacity and 9A continuous output
• High-energy-density chemistry with long 1,000+ cycle life and stable voltage plateau
• 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 EV builders, power tool technicians, and DIY pack fabricators demanding dependable 4500mAh capacity, steady 9A continuous discharge, and over 1,000 cycle endurance for electric mobility, energy storage, and custom power assemblies.

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

The DMEGC INR 21700 5000mAh 15A Continuous Discharge 21700 Li-ion Rechargeable Battery is a high-capacity cylindrical bare cell manufactured by DMEGC and supplied by DXF POWER with strict quality grading. Delivering an exceptional balance of extended operating runtime and steady 15A continuous discharge performance, this flat-top bare cell features a massive 5000mAh nominal capacity on a standard 3.6V–3.7V platform. Known for its stable voltage retention under load, low internal resistance, and outstanding thermal stability, the DMEGC 21700 5000mAh cell is an ideal solution for electric bicycles (e-bikes), electric scooters, cordless power tools, high-lumen flashlights, and custom DIY battery packs.

Watch DXF Batteries in Action

Key Features

• Genuine DMEGC INR 21700 Cell: Authentic Grade-A 21700 cylindrical power cell manufactured by leading producer DMEGC
• 5000mAh High-Capacity Performance: Ultra-high 5000mAh capacity provides long runtime for high-energy-demand vehicles and devices
• 15A Continuous Discharge Output: Reliable 15A maximum continuous discharge current supports moderate-to-heavy power draws without overheating
• Advanced INR Chemistry: High-density formulation ensures stable discharge voltage, minimal voltage sag, and reliable cycle life
• Standard 3.6V–3.7V Platform: CC-CV charging profile up to 4.20V ± 0.05V with standard 2.50V discharge cut-off
• Standard 21700 Flat-Top Design: 21.3 mm diameter × 70.55 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 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: DMEGC (Supplied by DXF POWER)
• Model / Part No.: INR 21700 5000mAh
• Cell Format: 21700 Cylindrical Rechargeable Lithium-ion (Li-ion)
• Cell Chemistry: INR / Li-ion (Lithium Nickel Manganese Cobalt Oxide)
• Positive Terminal: Flat (Flat Top)
• Protection Circuit: None (Unprotected industrial bare cell; requires compatible BMS / protection circuit)
• Nominal Capacity: 5000mAh
• Nominal Voltage: 3.6V - 3.7V
• End of Charge Cycle Voltage: 4.20V ± 0.05V
• Discharge Cut-Off Voltage: 2.50V (Do not discharge below 2.5V)
• Maximum Continuous Discharge Current: 15A continuous
• Charging Method: Constant Current / Constant Voltage (CC-CV)
• Rechargeable: Yes
• Cell Dimensions: Diameter: 21.3 mm × Height: 70.55 mm
• Cell Weight: Approx. 72 g
• Applications: Electric bicycles (e-bikes), electric scooters, cordless power tools, high-lumen LED flashlights, portable power banks, and custom DIY battery packs

Package Includes

• DMEGC INR 21700 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 – Portable Light & Device Packs: Ideal for high-lumen multi-cell torches, camping lanterns, and small electronics
• 20 PCS – Compact Energy Modules: Perfect for small portable power banks, robotics, and auxiliary power supplies
• 50 PCS – E-Bike & Scooter Battery Rebuilds: Sized for assembling and refurbishing standard 36V/48V light electric vehicle packs
• 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.
• 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 DMEGC INR 21700 cells with authentic 5000mAh capacity and 15A continuous output
• High-energy-density chemistry with stable voltage retention and long 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-bike mechanics, tool rebuilders, and DIY pack fabricators demanding dependable 5000mAh capacity, steady 15A continuous discharge, and excellent cycle endurance for electric mobility, cordless tools, and custom energy assemblies.

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

The EVE INR21700-40P 4000mAh 50A Continuous Discharge 21700 Li-ion Rechargeable Battery is an ultra-high-drain cylindrical bare cell manufactured by EVE Energy and supplied by DXF POWER with strict quality grading. Engineered for extreme-drain applications demanding ferocious power delivery without compromising cell stability, this flat-top bare cell delivers a solid 4000mAh capacity on a 3.7V nominal platform with a massive 12.5C (50A) maximum continuous discharge rating. Featuring an ultra-low internal impedance (≤13mΩ) and an impressive cycle life (≥600 cycles), the EVE 40P is the premier choice for high-draw cordless power tools, high-performance electric bicycles (e-bikes), electric skateboards/scooters, and custom DIY battery packs.

Watch DXF Batteries in Action

Key Features

• Genuine EVE INR21700/40P Cell: Authentic Grade-A 21700 high-power cylindrical cell manufactured by leading producer EVE Energy
• 50A (12.5C) Continuous Discharge Output: Extreme 50A continuous discharge capability engineered for severe, high-drain loads without thermal runaway
• Ultra-Low Internal Impedance: Initial internal AC impedance ≤13mΩ ensures lightning-fast power transfer and minimal voltage sag under load
• 4000mAh High-Drain Capacity: Generous 4000mAh capacity balances heavy current delivery with reliable operating runtime
• Long Cycle Life: Engineered for ≥600 charge/discharge cycles for sustained heavy-duty performance
• Standard 3.7V Platform: CC-CV charging profile up to 4.20V with a broad working voltage range of 2.50V to 4.20V
• Standard 21700 Flat-Top Design: 21.15 mm diameter × 70.15 mm height and ~70 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.: INR21700/40P (EV-INR21700-40P / 40P)
• Cell Format: 21700 Cylindrical Rechargeable Lithium-ion (Li-ion)
• Cell Chemistry: INR / Li-ion (Lithium Nickel Manganese Cobalt Oxide)
• Positive Terminal: Flat (Flat Top)
• Protection Circuit: Without (Unprotected industrial bare cell; requires compatible high-current BMS / protection circuit)
• Nominal Capacity: 4000mAh
• Nominal Voltage: 3.7V
• Working Voltage Range: 2.50V - 4.20V
• Charge Termination Voltage: 4.20V ± 0.05V
• Discharge Cut-Off Voltage: 2.50V
• Maximum Continuous Discharge Current: 12.5C (50A continuous)
• Initial Internal Impedance: ≤13mΩ
• Cycle Life: ≥600 cycles
• Charging Method: Constant Current / Constant Voltage (CC-CV)
• Rechargeable: Yes
• Cell Dimensions: Diameter: 21.15 mm × Height: 70.15 mm
• Cell Weight: Approx. 70 g
• Applications: Cordless power tools (drills, grinders, impact drivers), high-speed electric scooters/e-bikes, electric skateboards, lawn equipment, and custom high-drain DIY battery packs

Package Includes

• EVE INR21700-40P 4000mAh 50A 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-Output Tool Packs: Ideal for rebuilding power tool batteries and high-rate equipment packs
• 20 PCS – Compact High-Drain Modules: Perfect for high-power scooters, robotics, and performance battery packs
• 50 PCS – E-Bike & EV Battery Rebuilds: Sized for assembling and refurbishing standard 36V/48V high-power electric vehicle packs
• 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.
• Never exceed the maximum continuous discharge current of 50A.
• 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 50A continuous output
• Ultra-low ≤13mΩ internal impedance for minimal voltage sag under demanding power 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 power tool rebuilders, high-performance EV builders, and DIY pack fabricators demanding authentic 4000mAh capacity, fierce 50A continuous discharge, and ≤13mΩ ultra-low impedance for extreme-drain cordless and electric mobility applications.

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