3.7V 3000 mAh Lithium Batteries 21700

3.7V 3000 mAh Lithium Batteries 21700

3.7V 3000 mAh Lithium Batteries 21700

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.

Free Sample

*Customization is always available, please mark down your need in form or just contact us.

Battery Specification

1. Mechanical Characteristics

Cell21700PCMNo
NTCNoWeightappr. 70.0g
Configuration1S1P 

2. Electrical Specification

Capacity3000mAhNominal Voltage3.7V
Energy11.1WhInternal Resistanceless than 23 mΩ
Max. Charge Voltage4.2VDischarge Cut Off2.75V
Max. Charge Current1500mAMax. Discharge Current6000mA
Standard Charge Current600mAStandard Discharge Current600mA
Charging Temperature0℃ 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 DetectionNoOverdischarge DetectionNo
Overcurrent DetectionNoShort protectionNo

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