The Renogy Smart Lithium Iron Phosphate Battery enables auto-balance among parallel connections and provides more flexibility for battery connection. The integrated smart battery management system (BMS) not only protects the 12V 100Ah LiFePO4 battery from various abnormalities but also monitors and manages the charging/discharging process. The state-of-the-art battery cells ensure a long cycle life and exceptional discharge performance. If you're searching for a deep cycle battery for caravan, cabin, or marine use, this lightweight, auto-balanced, ultra-safe, long-cycle-life lithium-ion battery is the perfect plug-and-play solution for you!