AkuBox® SBS modular energy storage – 2 batteries and 1 control module ● Total capacity 200Ah / 10 kWh ● Control unit with LCD and central protection ● Scalable, stackable design ● RS485/CAN support
100Ah 51.2V Battery Module for BOXLIFEPO4200V48SBS
AkuBox® SBS Battery Module for Energy Storage ● Capacity: 100 Ah / 5 kWh ● Long-life LiFePO4 technology ● Stackable expansion battery module ● Integrated autonomous BMS for maximum operational safety
100Ah 5.1kW Battery Module for AkuBox BOXLIFEPO4200V48SBS
An expansion battery module designed for AkuBox® SBS stackable systems. The unit utilizes modern LiFePO4 chemistry, which guarantees high stability, long service life, and an excellent number of cycles even under demanding daily use. Each module is fully autonomous thanks to its own intelligent battery management system (BMS) and is designed for a seamless and rapid increase in the capacity of your existing storage system.

Key Benefits of AkuBox SBS
- 5.12 kWh Capacity: Rated capacity of 100 Ah at 51.2 V.
- High Durability: Optimized for demanding cyclic operating conditions and long service life.
- Scalability: Option for future capacity expansion by simply adding additional battery modules (up to 15 units).
- Autonomous BMS: Intelligent cell management ensuring even balancing and protection against critical conditions.
- Stackable architecture: Quick and hassle-free installation thanks to wireless module interconnection.
- Installation convenience: Full mechanical and electrical compatibility with the AkuBox® SBS system for immediate “plug & play” expansion.
2
| Number of batteries | Total capacity | Voltage | Dimensions (WxDxH) mm |
|---|---|---|---|
| Total weight | |||
| batteries | 10.24 kWh | 51.2 V | 645 x 397 x 605 | 115 kg |
3
| batteries | 15.36 kWh | 51.2 V | 645 x 397 x 785 | 160 kg |
4
| batteries | 20.48 kWh | 51. |
| 2 | ||
| V |
| 645 x 397 x 965 |
| 205 |
| kg |
5
| batteries | 25.60 kWh | 51.2 V | 645 x 397 x 1145 | 250 kg |
6
| batteries | 30.72 kWh | 51.2 V | 645 x 397 x 1325 | 295 kg |
7
| batteries | 35.84 kWh | 51.2 V | 645 x 397 x 1505 | 340 kg |
8
| batteries | 40.96 kWh | 51.2 V | 645 x 397 x 1685 | 385 kg |
ℹ️ Important Information:
This product serves as an expansion module for the basic set and requires a control unit to operate.
- Base kit: AkuBox LiFePO4 200Ah 51.2V
- ⚠️ Cannot be operated independently.
Technical Specifications
- Nominal voltage: 51.2V
- Nominal capacity: 100Ah
- Energy:5120Wh
- Communication: CAN2.0 / RS232 / RS485
- Active balancing: Yes
- Cycle count / lifespan: 4000 cycles @ 70% DOD
- Number of connected parallel modules: Max. 15
- Charging current: 50A
- Charging voltage: 57.6V
- Discharge current: 50A
- Maximum discharge current: 100A
- Maximum discharge power: 5120W
- Discharge voltage (limit): 44V
- Short-circuit protection delay: 5μs
- Certifications: CE, UN38.3, UL1642 & IEC62133
- Transport classification: UN 3480, Class 9
- Dimensions (W x D x H): 645 x 397 x 180mm
- Weight: 45kg
- Enclosure material: SPPC
- Protection rating: IP21
- Operating temperature / discharge: -20 °C ~ 60 °C
- Operating temperature / charging: 2 °C ~ 55 °C
ℹ️ Multiple batteries must not be connected in series.
❗ The BMS is factory-set to specific parameters. Any unauthorized tampering or modification of the set parameters will result in permanent damage to the product and void the warranty.

❓ Will this battery communicate with your inverter? Check this compatibility overview.
Features
- Rated capacity (Ah)
- 100
- Energy (kWh)
- 5.12
- Rated voltage (V)
- 51,2
- System voltage
- 48V
- Dimensions
- 645 x 397 x 180mm
- Model
- AkuBox®
- Package weight
- 45.00 kg
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