48V 100Ah 5kWh R48-100A 3U Rack LifePo4 Lithium Battery 51.2V 5.12kWh with 100A internal BMS. Composed of (16) UL listed prismatic 3.2V LiFePO4 cells in series which have been tested at 6000 deep discharge cycles to 80% DoD – fully charge and discharge this battery daily for over 15 years without issue.