The EcoFlow RIVER 3 Max Plus pairs a 286 Wh main unit with the EB600 extra battery for a total of 858 Wh of LiFePO4 storage in a single 10.3 kg package. It measures 23.4 x 23.2 x 28.6 cm, delivers 3 x 600 W of combined AC output with a 1,200 W peak, and can drive up to eight devices at the same time across its various sockets.

• 858 Wh LiFePO4 (LFP) storage split as 286 Wh + 572 Wh, 3,000 cycles to 80% capacity.
• Three Type F outlets at 600 W combined, 1,200 W peak, pure sine wave.
• 140 W USB-C for fast laptop charging alongside two 12 W USB-A ports (24 W total).
• 220 W solar input via XT60 (11-55 V), enough to refill from a 220 W panel in about 4.6-9.2 h.
• UPS switchover in under 10 ms for reliable protection of sensitive electronics.
• Wi-Fi, Bluetooth and USB-B for the EcoFlow Power Manager, plus 5-year warranty.

Key specs

• Capacity: 858 Wh (286 Wh + 572 Wh)
• AC output: 3 x Type F combined 600 W (peak 1,200 W), pure sine
• AC inlet: 360 W max, 220-240 V
• Solar input: 11-55 V, 220 W max (XT60)
• USB-C: 140 W max
• Cell chemistry: LiFePO4 (LFP), 3,000 cycles to 80%
• UPS switchover: <10 ms
• Weight: 10.3 kg; dimensions 23.4 x 23.2 x 28.6 cm
• Wi-Fi / Bluetooth: yes
• Warranty: 5 years

Well suited to a long weekend in a camper, a food truck that runs coolers and coffee gear, or a family that wants a bigger backup without moving up to a DELTA-class station. On the DC side the station carries a 12.6 V / 10 A car-charger output up to 126 W for cool boxes or 12 V pumps, and the extended 858 Wh capacity means the fan noise stays below 30 dB up to 300 W of load, which is quiet enough to sleep next to.