Ecoflow River 3 Plus Smart Extra Battery

Expand capacity: Adds 286 Wh to the base RIVER 3 Plus; with the EB600 option, the system can reach up to ~858 Wh. Smart clip-on connection via Pogo Pin technology (no cables required) for easy, secure stacking. 140 W USB-C port serves both charging of the extra battery and output to your devices—adds independent flexibility. Uses LiFePO4 (LFP) battery chemistry with a long lifespan: ~3,000 cycles to 80% capacity and up to ~10 years of use anticipated.