Description
Power Pack LiFePO₄ 12S 36V 18000mAh 12S3P 3C Discharge LFP Battery Pack
The Power Pack LiFePO₄ 12S 36V 18000mAh 12S3P 3C Discharge LFP Battery Pack is a rechargeable lithium iron phosphate battery designed for 36V-class applications requiring dependable energy storage and high discharge capability.
This battery uses a 12S3P configuration, with 12 cells/groups connected in series and 3 cells in parallel per group. Using 6000mAh LFP cells, the pack provides 18Ah capacity, 38.4V nominal voltage, and approximately 691.2Wh energy capacity.
With a 3C discharge rating, the theoretical cell-based discharge current is 54A.
Key Features
- Battery Chemistry: LiFePO₄ / LFP
- Configuration: 12S3P
- Commercial Voltage Class: 36V
- Nominal Voltage: 38.4V
- Capacity: 18000mAh / 18Ah
- Maximum Charge Voltage: 43.2V
- Cell Capacity: 6000mAh
- Total Cells: 36
- Discharge Rating: 3C
- Theoretical 3C Current: 54A
- Rechargeable LFP battery technology
- Suitable for custom, industrial and OEM battery applications
12S3P Battery Configuration
The battery is built in a 12S3P configuration:
- 12 cells/groups in series
- 3 cells in parallel per series group
- Individual cell capacity: 6Ah
- Total cells: 12 × 3 = 36 cells
- Nominal cell voltage: 3.2V
- Pack nominal voltage: 12 × 3.2V = 38.4V
- Pack capacity: 6Ah × 3 = 18Ah
- Energy: 38.4V × 18Ah = 691.2Wh
3C Discharge Capability
With an 18Ah pack capacity and 3C-rated cells:
18Ah × 3C = 54A theoretical current
The actual continuous output depends on the selected cells, BMS rating, wiring, connectors, temperature and thermal management.
BMS Protection
A suitable 12S LiFePO₄ BMS can provide:
- Overcharge protection
- Over-discharge protection
- Over-current protection
- Short-circuit protection
- Cell balancing
- Cell voltage monitoring
- Temperature protection when supported
The BMS current rating should be selected according to the actual continuous and peak load requirements.
Connector & Wire
The connector and cable can be customised according to the application.
Possible connector options include:
- XT30
- XT60
- XT90
- DC connectors
- JST connectors
- Custom power terminals
The cable gauge should be selected according to the required current and cable length.
Applications
- 36V-Class Power Systems
- Electric Mobility Equipment
- Robotics
- Small EV Systems
- Industrial Equipment
- Portable Power Systems
- DC Backup Power
- Custom Battery Projects
- OEM/ODM Battery Packs
- DIY LiFePO₄ Applications
Advantages
- LiFePO₄ chemistry for stable and reliable operation
- 12S3P configuration
- 18Ah capacity
- Approx. 691.2Wh energy capacity
- 3C discharge-rated cell configuration
- 38.4V nominal voltage
- Rechargeable battery design
- Custom BMS and connector options
- Suitable for OEM and custom battery applications
Package Includes
- 1 × 12S3P LiFePO₄ Battery Pack
- 36 × LFP cells
- 12S LiFePO₄ BMS, as configured
- Cell interconnections
- Insulation/protection materials
- Output wires and connector as specified
Important Charging Information
This 12S LiFePO₄ battery requires a compatible charger with a maximum charging voltage of 43.2V.
Use a dedicated 12S LiFePO₄ 43.2V charger.
Do not use a 12S NMC 50.4V charger with this LFP battery.

