INR21700 50XG 5000mAh 3.7V High Discharge Lithium Battery Cell 40A 90A for Power Tools & Battery Pack

The Misen INR21700-50XG is a high-discharge 21700 lithium-ion battery cell designed for demanding power applications.    With 5000mAh capacity, stable 3.7V nominal voltage, and strong continuous discharge performance, it is well suited for battery packs used in power tools, electric mobility, energy storage systems, and other high-drain devices.

Built for customers who need a balance of high capacity and high output, this 21700 battery cell offers low internal resistance, reliable cycle performance, and efficient energy delivery.    It is an ideal choice for pack integrators, equipment manufacturers, and wholesale buyers looking for dependable lithium-ion cells for custom battery pack assembly.

1. High Capacity with Strong Power Output

• 5000mAh Capacity: Provides extended runtime for high-energy-demand applications.

• 40A Continuous Discharge: Stable output for power tools, e-bikes, and battery packs.

• Up to 90A High Discharge Capability: Suitable for short-term peak power demands.

2. Low Internal Resistance for High Efficiency

• ≤4mΩ Internal Resistance: Reduces heat generation and improves energy efficiency.

• Stable Voltage Platform: Maintains consistent performance under high load conditions.

3. Reliable Cycle Life Performance

• Designed for Long Cycle Life under standard operating conditions.

• Good capacity retention for both energy storage and high-drain applications.

4. Built-in Safety Design

• Integrated safety mechanisms including CID and venting structure.

• Stable lithium-ion chemistry for safe operation in battery pack systems.

5. Wide Application Compatibility

• Suitable for Power Tools, E-bike, Energy Storage Systems, and Custom Battery Packs.

• Ideal for pack manufacturers, OEM projects, and wholesale distribution.

⚡ Power Tools & High-Drain Equipment

• Provides stable high-current output for tools such as drills, saws, and industrial equipment.

• Suitable for applications requiring continuous and pulse discharge performance.

Electric Mobility & E-Bikes

• Widely used in 36V / 48V / 60V battery pack configurations.

• Delivers reliable power for acceleration, climbing, and long-duration riding.

Energy Storage Systems (ESS)

• Suitable for small to medium-scale energy storage solutions.

• Offers a balance between energy density and power capability for modular systems.

Custom Battery Packs & OEM Projects

• Ideal for battery pack manufacturers and system integrators.

• Supports flexible configurations such as 10S, 13S, 14S, and parallel designs.

Medical & Industrial Backup Devices

• Reliable power source for portable equipment and backup systems.

• Stable performance ensures consistent operation in critical environments.