EcoFlow River 3 Max Portable Power Station 576wh ( Battery Backup ) | EFRIVER3MAX-UK-CBOXExpandable up to 858Wh with a wire free connection. 600W rated output and 1200W X Boost. 1 hr fast charging, no battery damage. Up to 220W fast solar charging LiFePO4, 3000 cycles to 80% capacity Up to 2 runtime for light wattage appliances. Compact and lightweight UPS: < 10ms USB C Output: 1 port, 5 9 12 15=3A max, 20V=5A max, 100W max EcoFlow River 3 Max Portable Power Station 576wh Solar Power Bank Adjust capacity for growing energy needs