Best Lithium Marine Starting Battery. The mighty max is both a starter battery and deep cycle battery so it will start your boat and run your onboard appliances. One ionic 12v 100ah deep cycle lithium marine battery to power your trolling motor.

Top 8 best lithium battery which is safe to use in multiple applications: Its durability is quite impressive, reaching up to 5,000 cycles or 10 years. These lithium batteries are installed on the marine direct project boat.