Florida Lithium's advanced performance dual purpose Lithium batteries provide the best of both worlds! Our 105ah battery features an upgraded 150Ah BMS, providing maximum deep cycle performance AND 800 cranking amps. This versatile addition to our line can be run in a series up to 48 volts, effortlessly crank outboard 300HP motors, or run in parallel to provided extended power. Florida Lithium's Dual Purpose battery complies with voltage and discharge standards provided by Mercury marine for use with Mercury outboards. Bluetooth functionality provides realtime battery monitoring available via the Florida Lithium App- available for iOS and Android.