I am using a Ionic 12v/50ah powering a Garmin 1042, Striker, 942, & 92 Ultra XSV. The Livescope GLS10 is not connected to it but to the Cranking Battery. I have fished all day without a voltage drop to the Head Units. Also Garmin SteadyCast & NEMA 2000 Backbone is powered by the Ionic Lithium. Drew makes Solid Lithium Batteries.