Description
48V EVE MB31 314Ah LiFePO4 Battery Kit 16.08kWh with JK BMS
Build your own 51.2V, 314Ah LiFePO4 battery using matched genuine EVE MB31 prismatic cells and a correctly selected JK BMS.
The 16S1P configuration provides approximately 16.08kWh nominal energy for larger off-grid solar, residential backup and workshop energy-storage projects.
Genuine EVE cells
Each EVE MB31 cell is rated at 3.2V, 314Ah and 1004.8Wh nominal energy. EVE specifies 8,000 cycles to 70% SOH under EVE specified test conditions. We have ordered the double pole EVE style terminals since release in 2024, and we will continue to provide that option unless otherwise specified.
JK smart battery management
The included JK-PB2A16S-20P inverter BMS is configured for this pack and provides a 200A current rating, 2A active balancing, Bluetooth, CAN, RS485, temperature monitoring, configurable protection and pre-charge functionality.
CAN or RS485 hardware does not guarantee compatibility with every inverter. Confirm the supported protocol, firmware and cable pinout before ordering or commissioning.
Key features
- 16 matched genuine EVE MB31 314Ah cells
- 51.2V nominal, 16S1P configuration
- Approximately 16.08kWh nominal energy
- JK-PB2A16S-20P 200A smart BMS with 2A active balancing
- Bluetooth, CAN and RS485 monitoring and communication
- Busbars, terminal hardware and balance wiring supplied
What’s included
- 16 × matched EVE MB31 314Ah prismatic cells
- 1 × JK-PB2A16S-20P 200A JK BMS
- Inter-cell busbar set
- Required cell terminal hardware for the supplied cell batch
- BMS balance-lead harness and associated monitoring wiring
DIY kit notice
This is an unassembled component kit, not a completed or certified drop-in battery. An enclosure, insulated cell restraint, main battery cables, lugs, fuse or circuit breaker, isolator, charger and inverter are not included unless separately stated.
Assembly should only be undertaken by a competent person familiar with high-current DC battery systems. Confirm polarity, use suitable cell restraint and insulation, install DC-rated over-current protection and configure the BMS before commissioning.
Key specifications
| Configuration | 16S1P |
|---|---|
| Nominal voltage | 51.2V |
| Nominal capacity | 314Ah |
| Nominal energy | 16076.8Wh / 16.08kWh |
| Cell model | EVE MB31 |
| Cell quantity | 16 |
| Cell chemistry | LiFePO4 / lithium iron phosphate |
| Cell nominal voltage | 3.2V |
| Maximum series charge voltage | 58.4V based on 3.65V per cell; configure equipment appropriately |
| BMS | JK-PB2A16S-20P |
| BMS current rating | 200A continuous; completed-system limit may be lower |
| Active balancing | Up to 2A |
| Communication | Bluetooth, CAN and RS485 |
| Cell standard discharge | 0.5P under EVE specified conditions |
| Cell cycle-life test rating | 8,000 cycles to 70% SOH under EVE specified test conditions |
| Assembly state | Unassembled DIY component kit |
