48V 28Ah Hard Case eBike Battery | IP66 Weatherproof | Amp-X ElectricBuilt tough. Rides in any weather. Most batteries tap out when conditions get rough. The Amp X 48V 28Ah Hard Case Battery is rated IP66 fully sealed against dust and powerful water jets so you can ride in the wet, the mud, and the dirt without worrying about your power source. Built with genuine Samsung 50E 21700 cells and a 50A BMS, it delivers consistent, reliable power with full protection against overcharge, over discharge, short circuit, and high