Description
Power Pack 11.1V 14000mAh 3S7P 1C BMS 20A Lithium-Ion Rechargeable NMC Battery Pack
The Power Pack 11.1V 14000mAh 3S7P 1C BMS 20A Lithium-Ion Rechargeable NMC Battery Pack is a high-capacity rechargeable battery pack designed for portable electronics, robotics, industrial equipment, backup power systems, and other applications requiring a reliable 11.1V power source.
The battery uses 18650 NMC lithium-ion cells arranged in a 3S7P configuration, providing 11.1V nominal voltage and 14000mAh (14Ah) capacity. A 3S 20A BMS provides protection against overcharge, over-discharge, over-current, and short circuit.
3S7P Configuration
The battery pack uses a 3S7P configuration with 21 cells:
- 3S = 3 cell groups connected in series
- 7P = 7 cells connected in parallel in each group
- Total cells = 3 × 7 = 21 cells
- Cell capacity = 2000mAh
- Parallel group capacity = 2000mAh × 7 = 14000mAh
- Nominal pack voltage = 3.7V × 3 = 11.1V
- Maximum charge voltage = 4.2V × 3 = 12.6V
- Energy capacity = 11.1V × 14Ah = 155.4Wh
The 3S connection increases voltage, while the 7P connection increases capacity.
3S 20A BMS
The pack is equipped with a 3S 20A BMS to help protect the battery during charging and discharging.
Typical protection functions include:
- Overcharge protection
- Over-discharge protection
- Over-current protection
- Short-circuit protection
- Cell voltage monitoring
- Charging and discharging protection
The actual continuous output current depends on the selected cells, BMS design, wiring, connectors and overall battery construction.
Charging
Use a dedicated 12.6V NMC/Li-ion charger for this 3S battery pack.
Charging specifications:
- Nominal voltage: 11.1V
- Maximum charge voltage: 12.6V
- Recommended charger: 12.6V Li-ion charger
- Battery chemistry: NMC Lithium-Ion
Do not use a 14.6V LiFePO4 charger for this battery.
Applications
The 11.1V 14Ah battery pack can be used for:
- Portable electronic equipment
- Robotics
- Industrial equipment
- CCTV and security equipment
- LED lighting
- IoT devices
- Communication equipment
- Measuring instruments
- Portable power systems
- DIY electronics
- Backup power applications
- Custom electronic equipment
Key Features
- 11.1V nominal voltage
- 14000mAh / 14Ah capacity
- 3S7P configuration
- 21 × 18650 cells
- NMC lithium-ion chemistry
- 1C cell discharge rating
- 3S 20A BMS
- Approx. 155.4Wh energy
- Rechargeable battery design
- Compact custom-pack construction
- Custom connector and wire options available
