FPV Power Slimline 12v 110AH Battery LiFep04 For a ling time we have been looking for a battery that is light, space saving and doesnt break the bank. Now FPV Power offer their FPV Power Slimline 12v 110AH Battery LiFep04.if your looking to power you kayak motor or fit out your boat or car this battery has the power you need for days of use.