Pro-Guide Signature Series Lithium Battery - 16V - 50AH [16VM50]Signature Series Lithium Battery 16V 50AH With a cycle life rated up to 3000 cycles, the Pro Guide Lithium 16VM50 battery is your new favorite choice for powering your marine electronics 1. When you need power that'll last, the 16VM50 is here to support you. Get more out of your fish finder, kayak, or other finesse applications 2. With cycle lives rated beyond 3000 cycles @ 80% DOD and a capacity of 50Ah or 800Wh, you get a battery that performs at a