RIVER 2 vs RIVER 2 Max

This comparison targets buyers choosing between two compact EcoFlow LFP stations in the same product family. The RIVER 2 Max doubles the capacity to 512 Wh and raises running output from 300W to 500W, with a 1000W surge rating versus 600W on the standard RIVER 2. That extra headroom lets the Max power 20 of 53 tested devices compared to 17 for the smaller unit.

Solar input scales proportionally: the Max accepts up to 220W and works with 17 compatible panels, while the RIVER 2 tops out at 110W across 12 panels. Both units reach a full solar charge in roughly 3.3 hours and share the same 3,000-cycle LFP longevity. The tradeoff is weight and portability.

At 7.7 lbs, the RIVER 2 is nearly half the weight of the 13.4 lb Max, and it includes a 30ms UPS function the Max lacks.

Pick the RIVER 2 if ultralight portability and basic backup UPS protection matter more than raw capacity; it handles phones, laptops, and small loads at just 7.7 lbs. Go with the RIVER 2 Max when you need 512 Wh of stored energy, 500W continuous output, and broader device coverage for car camping, tailgating, or moderate home backup. The RIVER 2 Max earns the win here with a score of 40 versus 33, delivering meaningfully more power and flexibility for the added weight.