I have a Garmin 93sv echomap so it probably uses more power than the striker but I'm not sure. I was getting interference from the trolling motor so I just got a second battery and I got this one https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1 which is a 12ah. I looked up the size that Garmin used on their ice unit for the same unit and bought that size of battery so I would look at what size battery they have in their Striker 7 ice units.