Rolls Battery's new S-Series 12V & 24V LFP models are an enhanced range of maintenance-free, lightweight flooded and sealed lead-acid alternatives. With fast charge & discharge capability and operating protections for safety & security, the new S-Series lineup includes a built-in display for easy state-of-charge and error indication, heating for cold weather operation, unique external fuse access and up to 4S4P (48V) or 1S6P connectivity, backed by a 3-year full replacement manufacturer warranty.