DMEGC INR21700 5000mAh 15A Li-ion Battery for E-Bikes, Power Tools & DIY Battery Packs (1-100 PCS)

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.

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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.