The most powerful whole-home backup solution-7.2kW-21.6kW output with up to 3 inverters-Up to 90kWh capacity with 3 inverters and 15 batteries-5.6kW-16.8kW solar input with up to 3 inverters-Online UPS, 0-ms transfer time-LFP battery 400W Portable Solar Panel a Charge faster with high 400W solar input a Up to 23% conversion rate a Durable, multi-layered materials a Self-supporting with an adjustable angle a IP68 waterproof rating a One-piece folding design