Garmin fishfinder draining battery

[Joetorres]

Ok so I put a new fishfinder on my kayak it's a echomaps 74sv garmin. I have a 12volt 8ah battery it only lasted like 45 minutes on and then the battery died .. what type of battery should I get to run this fishfinder on my kayak

[Jim Sammons LJKF]

Sounds to me like you got a bad battery or a bad charger.
That battery should run your finder just fine.

[Hunters Pa]

Running with the backlight on drains it faster. Run something else on that battery to make sure it is not bad

[YTHunter]

Sounds to me like you got a bad battery or a bad charger.
That battery should run your finder just fine.

x2

I have a Garmin 70dv and a 10ah battery and I'm getting over 8 hrs easily