Designed for true drop-in replacement in standard BCI sizing, Rolls R-Series 12V & 24V LFP lithium models offer a maintenance-free, lightweight flooded and AGM alternative with fast charge/discharge capability, built-in BMS with operating protections, up to 4x series and 4x parallel connectivity for 48V system configuration and exceptional cycle life (>6000 cycles @ 80% DOD), backed by a 3-year full replacement manufacturer warranty.