EcoFlow River 2 Max 512 W Battery Portable Power Station

River 2 Max The Best Portable Power Stations under 1kWh.LiFePO4 Battery Chemistry. With upgraded long-lasting LFP battery chemistry at its core, charge and empty River 2 over 3000 times. That's pretty much 10 years of everyday use and 6x longer than the industry average. With LFP cells, River 2 Max is safe, durable, and highly efficient, even in warm temperatures.