12V 30 AV li-ion battery 323 Wh Powerful and lightweight 12V30 AV lithium battery (323 Wh). Designed specially for use with bait boat, depth sounder, belly boat and waterside energy needs. The battery operates at 12 volts and has a capacity of 30 Ah. The battery is completely maintenance-free and has as many as 1000 charge-cycles. That means 1,000 charges and discharges. It is significantly lighter than a comparable lead battery and has a much lower annual loss. Thanks to the built-in Battery Management System, you never have to worry about discharging the battery too deeply and damaging it.