For charging those batteries up, Bluetti offers 9,000 watts of solar input support, courtesy of dual MPPT charge controllers. The EP800 will work with any DC-coupled solar panel installation — more efficient and with less energy loss than AC-coupled setups — and the whole Energy Storage System is NEMA 4X rated so that it can be located outside without concerns around weather resilience.
In fact, Bluetti says, the aluminum alloy-clad B500 batteries can be stacked vertically rather than wall-mounted like many rivals demand. Simple hooks and screws are used to assemble the whole system, and if it is installed indoors, the EP800’s sub-50dB operating volume should leave it all but unnoticeable — right up until it’s needed.
When the power does go out, however, it takes under 20 ms for a switch from a grid connection to the EP800’s battery. There’s up to 7,600 watts of output, with support for 120V and 240V dual voltage, all monitored in Bluetti’s app. From there, it’s possible to track power consumption and generation, change settings remotely via WiFi and Bluetooth connectivity, and install over-the-air (OTA) system updates.