Description
BAK 20S 72V 10000mAh (10Ah) 20S2P 3C Lithium-Ion Rechargeable Battery Pack
The BAK 20S 72V 10000mAh (10Ah) 20S2P 3C Lithium-Ion Rechargeable Battery Pack is a high-voltage lithium battery solution designed for applications requiring a combination of high energy capacity, reliable performance, and compact construction.
This battery pack uses BAK 21700 lithium-ion cells arranged in a 20S2P configuration, providing approximately 72V nominal voltage and 10Ah capacity. The pack can deliver approximately 720Wh of nominal energy, making it suitable for electric mobility and various industrial applications.
High-Performance 72V Battery Pack
The 20S2P configuration consists of 20 cell groups connected in series, with 2 cells connected in parallel in each group. This configuration provides the required high voltage while maintaining a 10Ah capacity.
The battery reaches approximately 84V when fully charged, so it should be used with a suitable 84V lithium-ion charger and a compatible 20S BMS.
Battery Configuration
20S2P = 40 cells
- Series: 20 cells
- Parallel: 2 cells
- Individual cell: 3.6V / 5Ah
- Pack voltage: 20 × 3.6V = 72V
- Pack capacity: 2 × 5Ah = 10Ah
- Pack energy: 72V × 10Ah ≈ 720Wh
- Full-charge voltage: 20 × 4.2V = 84V
Key Features
- Genuine BAK 21700 lithium-ion cells
- High energy density and compact construction
- 72V nominal voltage
- 10Ah capacity
- 20S2P configuration
- Suitable for high-voltage EV applications
- Custom BMS options available
- Nickel-strip spot-welded cell construction
- Custom connectors, wires, dimensions and enclosure options available
- Designed for rechargeable applications
Suitable Applications
- 72V Electric Bikes
- Electric Scooters
- Electric Vehicles
- BLDC Motor Systems
- High-Voltage Robotics
- Portable Power Systems
- Industrial Equipment
- Custom EV Projects
- DIY Lithium Battery Projects





