3.7V 3000 mAh Lithium Batteries 21700
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Model: Hanery 21700-3000
The Hanery 21700-3000 is a robust, power-focused lithium-ion cell designed for the 21700 platform. While 3000mAh is available in the 18650 format, this 21700 cell is engineered specifically for applications that demand exceptionally high continuous discharge rates and lower internal resistance. It is the ideal core for professional-grade power tools, heavy-duty impact wrenches, and high-performance racing drones where explosive power delivery is prioritized over maximum capacity.
Optimized for High Discharge: Delivers massive sustained current with minimal voltage sag.
Ultra-Low Internal Resistance (IR): Ensures efficient power transfer and cooler operation under extreme loads.
The 21700 Advantage: Larger form factor allows for a more robust internal structure to handle high power.
Rapid Charging Capable: Designed to accept high charge currents, minimizing downtime for professional users.
Exceptional Thermal Stability: Remains safe and reliable even during intense, continuous use.
Grade-A Consistency: Essential for building safe, high-voltage series packs (e.g., 6S or 10S for power tools).
Please note that we have a MOQ for our battery. For batteries in stock, the MOQ is 10,000 pcs. For customized batteries, the MOQ is 50,000 pcs.
Hanery assists you throughout your project: battery size, capacity, discharge multiplier, operating temperature, safety, and associated protection circuitry. Please contact us or mark your requirements on the inquiry quotation.
Order single or thousands of items at a time. Our warehouse and flexible shipping options are available for last-minute, deadline critical orders.
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*Customization is always available, please mark down your need in form or just contact us.
Battery Specification
1. Mechanical Characteristics
| Cell | 21700 | PCM | No |
| NTC | No | Weight | appr. 70.0g |
| Configuration | 1S1P |
2. Electrical Specification
| Capacity | 3000mAh | Nominal Voltage | 3.7V |
| Energy | 11.1Wh | Internal Resistance | less than 23 mΩ |
| Max. Charge Voltage | 4.2V | Discharge Cut Off | 2.75V |
| Max. Charge Current | 1500mA | Max. Discharge Current | 6000mA |
| Standard Charge Current | 600mA | Standard Discharge Current | 600mA |
| Charging Temperature | 0℃ to 45℃ | Discharging Temperature | -20℃ to 60℃ |
| Storage Temp.Range | 1 year at -20℃ to +30℃ 3 mos. at -20℃ to +45℃ 1 mo. at -20℃ to +60℃ | Cycle life | 100 cycles ≥92% 300 cycles ≥88% 500 cycles ≥80% |
3. Cell protection
| Overcharge Detection | No | Overdischarge Detection | No |
| Overcurrent Detection | No | Short protection | No |
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