Polinovel Bluetooth lithium battery BL series is a drop-in replacement for deep cycle lead acid batteries. It features all the advantages of lithium iron phosphate (LiFePO4) technology, delivering more usable energy, lighter weight, longer cycle life, and superior performance. The smart BMS with Bluetooth function ensures customers monitor and turn on/off the battery remotely on smartphone. This series contains 12V, 24V, 36V, and 48V models available for a wide range of applications like boat trolling motors, kayaks, sailboats, bass boats, and leisure vehicles like motorhomes, caravans, camper vans, truck campers, etc.