Sunpura B2400 Battery module – 2.4 kWh LFP extension for S2400
Easily expand your Sunpura S2400 with the B2400 battery module.
Each module adds 2.4 kWh of storage and you can stack up to four modules
stack for a total of 9.6 kWh. This is how you grow from a compact plug-in solution
to a serious home battery-without major modifications.
Scalable per 2.4 kWh
Step up per module to 4× B2400 (up to 9.6 kWh).
Safe LFP chemistry
LiFePO₄ cells designed for many charge cycles and long service life.
Seamless with S2400
The S2400 Power Box controls charging/discharging and monitoring automatically.
IP65 system design
Suitable for indoor and sheltered outdoor use; robust, modular housing.
What do you use the B2400 for?
- Scale up hassle-free – start small and expand as your consumption or ambitions grow.
- More self-consumption – catch afternoon dips and evening peaks with extra battery capacity.
- Flexible steering – take better advantage of dynamic tariffs and your own PV generation.
Compatibility
The B2400 is the expansion battery for the Sunpura S2400 system (Power Box + Battery Box).
Always place the Power Box on top and stack the B2400 modules below it (maximum 4 per stack).
Key specifications
| Nominal capacity | 2.4 kWh per module (max. 9.6 kWh with 4× B2400) |
| Battery chemistry | LiFePO₄ (LFP) |
| Nominal system voltage | 48 V (typical operating range 42-54 V) |
| Max. charge/discharge current | up to approx. 65 A / 52 A (limited by Power Box) |
| System protection | IP65 (in S2400 system), built-in electrical protections |
| Environment | Indoors or sheltered outdoors; design for wide temperature range |
| Dimensions / weight | approx. 450 × 287 × 290 mm – ~30 kg (indicative) |
Installation in brief
- Mounting – use the rear bracket; keep ±5 cm free space all around.
- Stacking order – Power Box on top, B2400 modules below; click in the couplings completely.
- Switch on/off – on: B2400 first, then Power Box; off: Power Box first, then B2400.
- Check – check in the app that total capacity and status are displayed correctly.