Additional energy with maximum reliability
Only compatible with:
- i9Power S5 5000W Portable Power Station
The i9Power B5-BAT is the ideal expansion module for increasing the energy capacity of i9Power systems, offering 5040Wh (48V; 105Ah) of additional safe and stable energy. With EV-grade LiFePO4 technology, it guarantees over 3,500 life cycles and a durability of over 10 years, making it a robust and long-lasting solution for residential, professional or off-grid use.

Expandable and versatile
Designed to integrate easily with i9Power power stations, the B5-BAT allows you to create modular storage systems that adapt to your needs. By combining multiple units, you can achieve up to 45.36 kWh of total capacity, providing enough power to support everything from essential household appliances to complete solar power systems.
Stable and safe energy
The LiFePO4 battery in the i9Power B5-BAT offers exceptional thermal and chemical stability, reducing the risk of overheating and ensuring consistent performance even in demanding conditions. The advanced battery management system (BMS) monitors temperature, voltage and current in real time, ensuring safety and efficiency at all stages of charging and discharging.


Full connectivity and efficient charging
The B5-BAT has multiple input and output options, including:
DC 12V / 10V
Anderson 12V / 30A
4 USB-A ports (up to 18W max)
2 USB-C ports (PD 100W max)
MPPT 2100W solar input (18–140V / 15A max)

This flexibility allows you to power various devices and recharge quickly via solar panels, mains electricity or a direct connection to the S5 station.


Robust and durable design
Made of ABS+PC with flame retardant protection and IP21 protection, the i9Power B5-BAT combines strength and portability. It weighs 43.8 kg and measures 641.5 × 304.5 × 437.5 mm, with a 3-year warranty. Ideal for integration into homes, motorhomes, trailers or emergency power systems.


Smart solution for off-grid power
The i9Power B5-BAT is designed to function as a direct extension of the i9Power S5 station or as a stand-alone backup module in solar systems. It is the perfect choice for those seeking sustainable energy autonomy, whether in a domestic environment or on outdoor adventures.