Automatic battery backup that mounts behind your fridge or freezer. Switches to battery in under 20ms — silent, indoor-safe, set it and forget it.
Designed for Stationary Use. Unlike portable power stations, the 1200S Slim is engineered to stay in place — wall-mounted or on a floor stand near your refrigerator, freezer, or essential appliances. Always plugged in, always charged, always protecting your home 24/7.
Instant UPS Protection. Sub-20ms switchover time means your refrigerator, freezer, or medical equipment never stops running when the grid fails. No manual intervention. No extension cords. No action required.
Built to Last 13+ Years. 1,382Wh LiFePO₄ battery rated for 5,000 cycles to 70% capacity — the longest lifespan of any GenBox model.
Expandable to 5.5kWh. Stack up to 3 GenBox-1.3B Expansion Modules to scale your system up to 5.52kWh and 24+ hours of continuous runtime.
Pure Sine Wave Output. 1,200W continuous — safe for variable-speed compressors, sensitive electronics, and medical equipment.
One Unit Per Appliance. Run multiple GenBox 1200S units independently — one for the fridge, one for the freezer, one for the home office. No single point of failure.
