Description
BAK 6S 22.2V 65000mAh (65Ah) Lithium-Ion Battery Pack | 6S13P 3C Ultra High Capacity Rechargeable Battery
The BAK 6S 22.2V 65000mAh (65Ah) Lithium-Ion Battery Pack is a high-capacity NMC lithium-ion battery pack configured as 6S13P, using BAK 21700 5000mAh cells. With a nominal voltage of 22.2V and a capacity of 65Ah, this pack provides approximately 1.44kWh of nominal energy.
The 6S13P configuration combines 6 cells in series and 13 cells in parallel in each series group, providing a high-capacity solution for applications requiring extended runtime and reliable rechargeable power.
Key Features
- Brand: BAK
- Battery Chemistry: Lithium-Ion / NMC
- Cell Type: 21700 cylindrical cells
- Cell Capacity: 5000mAh per cell
- Configuration: 6S13P
- Nominal Voltage: 22.2V
- Maximum Charging Voltage: 25.2V
- Rated Capacity: 65000mAh / 65Ah
- Energy: Approximately 1443Wh
- Cell Discharge Rating: Up to 3C, subject to cell model and pack design
- High-capacity design for long operating time
- Suitable for custom BMS, connectors, wiring and enclosure options
6S13P Battery Configuration
This battery contains 78 individual 21700 cells:
- 6 cells/groups in series (6S)
- 13 cells in parallel per series group (13P)
- Total cells = 6 × 13 = 78 cells
- Capacity = 13 × 5Ah = 65Ah
- Nominal voltage = 6 × 3.7V = 22.2V
- Maximum charge voltage = 6 × 4.2V = 25.2V
- Nominal energy = 22.2V × 65Ah ≈ 1443Wh
3C Lithium-Ion Configuration
The BAK cells are specified as 3C-class discharge cells. A theoretical cell-group calculation would be:
65Ah × 3C = 195A
However, 195A should not automatically be treated as the pack’s continuous discharge rating. The final safe current must be limited by the selected BMS, cell specifications, interconnects, wiring, connectors and thermal design.
BMS Protection
A suitable 6S NMC Lithium-Ion BMS can provide protection against:
- Overcharge
- Over-discharge
- Over-current
- Short circuit
- Over-temperature
- Cell imbalance
- Excessive charging/discharging conditions
For high-current applications, select the BMS according to the actual continuous and peak load requirements.
Applications
The 22.2V 65Ah battery pack can be used for:
- Electric vehicles and mobility systems
- Electric scooters and custom EV projects
- Robotics
- Portable power systems
- Backup power applications
- Industrial equipment
- DC power systems
- High-capacity DIY battery projects
- Custom electronics and engineering projects
- Solar and energy-storage applications where NMC chemistry is appropriate
Advantages
- High 65Ah capacity
- Approximately 1.44kWh nominal energy
- Compact 21700 cell format
- 6S13P configuration provides high capacity
- Suitable for extended-runtime applications
- Rechargeable lithium-ion technology
- Custom BMS and connector options available
- Suitable for OEM and custom battery-pack applications
Package Includes
- 1 × BAK 6S13P 22.2V 65Ah Lithium-Ion Battery Pack
- BMS according to selected configuration
- Battery wiring/interconnects
- Output connector according to requirement
Important Charging Information
Use a 25.2V lithium-ion charger specifically designed for a 6S NMC battery pack. Do not use a LiFePO4 charger or charger intended for a different series configuration.
Do not charge or operate the battery without an appropriate BMS and correctly matched charger.





