The Hobie Fishfinder Battery Holder can be used to hang inside an 8 in. Twist and Seal hatch or mount to the mast receiver inside the hull. Battery sold separately.
Just a very useful and handy item. I've got 2 on my Outback since I have lights, 1 mounted in the rear hatch for the lights and 1 clamped to the sail mast for my Helix 5 FF. Great option for a 7 or 8 amp battery, wish they had one for a 12amp battery and I would run 1 battery. I know this setup works all night so I'll stick with it. Great product.