Description
BAK 4S 14.8V 15000mAh (15Ah) 4S3P 3C Lithium-Ion Rechargeable Battery Pack
The BAK 4S 14.8V 15000mAh (15Ah) 4S3P 3C Lithium-Ion Rechargeable Battery Pack is a high-capacity NMC Lithium-Ion battery pack designed for applications requiring reliable 14.8V power and higher energy capacity.
This pack uses BAK 3.7V 5000mAh lithium-ion cells arranged in a 4S3P configuration, providing 14.8V nominal voltage, 15Ah capacity, and approximately 222Wh energy. The 3C configuration provides a theoretical discharge capability of up to 45A, subject to the actual cell, BMS, wiring, connectors and thermal design.
Key Features
- Brand: BAK
- Battery Chemistry: NMC Lithium-Ion
- Configuration: 4S3P
- Nominal Voltage: 14.8V
- Maximum Charging Voltage: 16.8V
- Capacity: 15000mAh (15Ah)
- Cell Capacity: 5000mAh
- Number of Cells: 12
- Discharge Rating: 3C
- Theoretical 3C Current: 45A
- Rechargeable lithium-ion battery
- High-capacity configuration
- Suitable for custom battery applications
BMS, connector and wiring can be customized
4S3P Battery Configuration
The battery pack contains 12 cells arranged as:
- 4 cells in series (4S) = 14.8V nominal
- 3 cells in parallel (3P) = 15Ah capacity
- Total cells: 4 × 3 = 12 cells
- Nominal energy: 14.8V × 15Ah = 222Wh
3C Lithium-Ion Configuration
The theoretical 3C discharge current is:
15Ah × 3C = 45A
Actual continuous discharge capability depends on the selected BAK cells, BMS current rating, interconnections, wiring, connectors and thermal management.
BMS Protection
A suitable BMS can protect the battery against:
- Overcharge
- Over-discharge
- Over-current
- Short circuit
- Cell imbalance
- Excessive temperature
- Abnormal charging and discharging conditions
The BMS should be selected according to the application’s actual current requirement.
Applications
- Portable Power Equipment
- Robotics
- RC Projects
- Electric Mobility Projects
- Small EV Applications
- Backup Power Systems
- DC Equipment
- Industrial Electronics
- Custom Lithium Battery Projects
- OEM Battery Applications
Advantages
- 15Ah high-capacity battery
- 14.8V nominal voltage
- Approximately 222Wh energy
- 4S3P configuration
- 3C high-discharge configuration
- Rechargeable NMC Lithium-Ion technology
- Suitable for custom applications
- Custom BMS and connectors available
- Suitable for OEM and bulk requirements
Package Includes
- 1 × BAK 4S3P 14.8V 15000mAh Lithium-Ion Battery Pack
- BMS – according to selected configuration
- Connector/wiring – according to selected configuration


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