Marstek B2200F is an expandable battery box designed for the S2200-Pro power station. It adds 2240 Wh of stored energy, extending the station’s available energy capacity when used as part of that system.
The battery uses LiFePO₄ cells. The manual lists dimensions of 360 × 288 × 185 mm and a weight of 18 ± 0.5 kg, useful details for planning where to place the module.
This is a battery expansion unit for the S2200-Pro, rather than a standalone power station.