Description
Power Pack 11.1V 12000mAh 3S6P 1C BMS 20A Lithium-Ion Rechargeable NMC Battery Pack
The Power Pack 11.1V 12000mAh 3S6P 1C BMS 20A Lithium-Ion Rechargeable NMC Battery Pack is a high-capacity rechargeable battery designed for portable electronics, industrial equipment, robotics, backup power, and custom applications requiring a reliable 11.1V lithium-ion power source.
This battery pack uses 18650 NMC lithium-ion cells in a 3S6P configuration, providing 11.1V nominal voltage and 12000mAh (12Ah) capacity. The integrated 3S 20A BMS provides essential battery protection and helps manage safe charging and discharging.
3S6P Configuration
The battery uses an 18-cell 3S6P configuration:
- 3S = 3 cell groups connected in series
- 6P = 6 cells connected in parallel in each group
- Total cells = 3 × 6 = 18 cells
- Cell capacity = 2000mAh
- Group capacity = 2000mAh × 6 = 12000mAh
- Nominal voltage = 3.7V × 3 = 11.1V
- Full-charge voltage = 4.2V × 3 = 12.6V
- Energy = approximately 133.2Wh
The 3S arrangement increases the voltage, while the 6P arrangement increases the available capacity.
3S 20A BMS
The battery pack is equipped with a 3S 20A BMS for battery protection and monitoring.
Typical protection functions include:
- Overcharge protection
- Over-discharge protection
- Over-current protection
- Short-circuit protection
- Cell voltage monitoring
- Battery protection during charging and discharging
The 20A BMS rating does not mean the cells themselves are automatically rated for 20A continuous discharge. The final usable current should be based on the selected cells, BMS specifications, wiring, connectors and complete pack design.
Charging
Use a dedicated 12.6V lithium-ion charger designed for a 3S NMC battery pack.
Charging specifications:
- Nominal voltage: 11.1V
- Maximum charge voltage: 12.6V
- Recommended charger: 12.6V Li-ion charger
- Chemistry: NMC Lithium-Ion
Do not use a 14.6V LiFePO4 charger for this NMC battery pack.
Applications
This 11.1V 12Ah battery pack can be suitable for:
- Portable electronic equipment
- Robotics
- Industrial equipment
- CCTV and security systems
- LED lighting systems
- IoT equipment
- Communication equipment
- Measuring instruments
- Portable power systems
- DIY electronics
- Backup power applications
- Custom equipment and machinery
Key Features
- 11.1V nominal voltage
- 12000mAh / 12Ah capacity
- 3S6P configuration
- 18 × 18650 cells
- NMC lithium-ion chemistry
- 1C cell discharge rating
- 3S 20A BMS
- Approx. 133.2Wh energy
- Rechargeable design
- Suitable for custom applications
- Custom connector and wire options available





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