EcoFlow's River 3 Plus power station features a 286Wh LiFePO4 battery and can triple its capacity with the EB600 expansion battery, which adds an extra 572Wh. The River 3 Plus includes three AC outlets, one 100W USB-C port, and two 18W USB-A ports. It recharges fully from 0% to 100% in just one hour when plugged into AC power and offers an EPS function with under 10ms switchover delay for uninterrupted power during outages [1]. The EB600 expansion battery also provides a 140W USB-C Power Delivery port for charging laptops quickly, and both units use safer, longer-lasting LiFePO4 batteries [1].
Amazon is currently selling the River 3 Plus bundled with the EB600 battery for $359, a 23% discount and the lowest price since its early 2025 release [1]. Eric Song, a deal hunter, noted his continued search for value both professionally and personally [1].
The larger EcoFlow Delta 3 Max Plus delivers a 2,048Wh expandable battery capacity and supports a 3,000W continuous power output with 6,000W surge, suitable for running home appliances and power tools [2]. It recharges from empty to 80% in a little over an hour and operates quietly around 25 decibels. Weighing 48.7 pounds and measuring 19.6 by 9.4 by 13.2 inches, it is compact enough for many vehicles. The Delta 3 Max Plus also features a 30A, 12V output to power off-grid equipment and includes 140W USB-C ports [2]. A companion app allows users to adjust settings and scale performance with accessories [2].
The Delta 3 Max Plus was available at a 30% discount in May 2026, priced around $1,000—the lowest price tracked so far [2].
EcoFlow’s sales on these portable power stations with expanded battery capacity aim to offer versatile, fast-charging power solutions for outdoor, emergency, and off-grid use.
