RIVER 2 Series Perfect Portable Power Stations under 1kWh. Built to Last For 10 Years. With LFP battery chemistry at its core, charge and empty RIVER 2 over 3000 times before its capacity drops to 80%. That's pretty much 10 years of regular use. Safe and Long-lasting Our Battery Management System (BMS) constantly monitors the voltage, current, and temperature of RIVER 2, extending its life to the max. Solar Charge in 3 Hours Plug in a portable solar panel to fully recharge RIVER 2 in as fast as 3 hours. That's 10% faster charging than our original RIVER Series. 12v Car Charging On the go and need a top-up? Just plug into your car's 12v socket for charging in a pinch. Conveniently Charge Anywhere Forgot your AC cable? Use your USB-C cable to conveniently charge when you need it most.