Expandable 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. Up to 2× runtime for light-wattage appliances. Compact and lightweight. <10 ms pro-grade UPS for precision devices. <30 dB whisper quiet for 24/7 use. The EcoFlow River 3 max is your reliable companion through outages or on the go, capable of running 90% of home appliances, cranking out up to 600W of rated power, expandable up to 858Wh. Its X-Boost technology can continuously handle 1200W heating devices without breaking a sweat, keeping 90% of home appliances running smoothly. The ideal starter battery for outdoor and daily use that is compact yet powerful in performance. RIVER 3 Plus is a beast in the small power station game, cranking out up to 600W of rated power. Its X-Boost technology can continuously handle 1200W heating devices without breaking a sweat, keeping 90% of home appliances running smoothly. With an additional built-in light, you'll never get left in the dark. Convenient and smart Monitor, control, and customize your power usage intelligently 572Wh Capacity - 600W Output -1200W X-Boost •Compact form, long-lasting and quiet energy - 4 ways of fast charging - Strong output ability - Durable and reliable - Convenient and smart • Charging anywhere, anytime: AC/Solar/Car/Generator charging • Strong output ability Supports 90% of home appliances, charge up to 7 appliances at the same time • Highly expandable up to 858Wh Unlimited possibilities for all power demands Extend capacity up to 858Wh with EB300 (286Wh) / EB600 (572 Wh) • 10 ms UPS battery for precision devices sub-10 ms auto-switch, meets professional UPS criteria • Durable and reliable LiFePO4 battery, 3000 cycles to 80% capacity. One investment, enjoy for 10 years.