Description
Power Pack 14.8V 4000mAh (4Ah) 4S2P 1C BMS 6A Lithium-Ion Rechargeable NMC Battery Pack
The Power Pack 14.8V 4000mAh (4Ah) 4S2P 1C Lithium-Ion Rechargeable NMC Battery Pack is a compact and reliable NMC lithium-ion battery pack designed for applications requiring a stable 14.8V nominal power supply.
The pack uses a 4S2P configuration, providing 4000mAh (4Ah) capacity. It is equipped with a 6A BMS to help protect the battery against overcharge, over-discharge, short circuit, and excessive current conditions.
With its compact design and rechargeable lithium-ion technology, this power pack is suitable for electronics, portable equipment, robotics, lighting systems, backup power and other custom applications.
Key Features
- Battery Chemistry: NMC Lithium-Ion
- Nominal Voltage: 14.8V
- Maximum Charging Voltage: 16.8V
- Capacity: 2000mAh / 2Ah
- Configuration: 4S2P
- Cell Count: 4 cells
- Cell Rating: 2000mAh per cell
- Cell Discharge Rating: 1C
- BMS: 4S 6A
- Rechargeable lithium-ion battery pack
- Compact and lightweight power solution
- Suitable for custom electronic and portable applications
3S2P Battery Configuration
The battery consists of 6 NMC lithium-ion cells arranged in a 4S1P configuration.
- 4S: 4 cell groups connected in series
- 1P: 2 cells connected in parallel in each group
- Capacity per parallel group: 2 × 2000mAh = 4000mAh
- Nominal voltage: 4 × 3.7V = 14.8V
- Maximum charging voltage: 4 × 4.2V = 16.8V
- Total energy: 14.8V × 4Ah = 59.2Wh
1C Lithium-Ion Configuration
The individual cells are rated at 1C.
For a 4000mAh (4Ah) pack:
Maximum theoretical current at 1C = 4Ah × 1C = 4A
The 6A BMS rating does not mean the battery can safely deliver 6A continuously. Actual allowable current depends on the cells, BMS design, nickel/copper interconnections, wiring, connectors and thermal conditions.
BMS Protection
The integrated 4S 6A BMS is designed to provide protection functions such as:
- Overcharge protection
- Over-discharge protection
- Over-current protection
- Short-circuit protection
- Cell-level voltage monitoring
- Battery safety management
Applications
This 14.8V 4Ah battery pack can be used for:
- Portable electronic equipment
- Robotics projects
- RC and hobby applications
- LED and lighting systems
- CCTV and security equipment
- IoT and embedded systems
- Portable instruments
- Small backup power systems
- Custom electronic devices
- DIY battery projects
Advantages
- Compact 4S1P configuration
- 4000mAh capacity
- Rechargeable NMC lithium-ion technology
- Integrated 6A BMS
- 14.8V nominal output
- 16.8V full-charge voltage
- Suitable for customized equipment and OEM applications
- Good balance between capacity and compact size
Package Includes
- 1 × 14.8V 4000mAh 4S1P NMC Lithium-Ion Battery Pack
- 1 × 4S 6A BMS installed with the battery pack





