The 14.8V 20Ah Lithium-Ion Battery is purpose-built for live imaging and forward-facing sonar systems, making it the perfect choice for users of Humminbird MEGA Live Imaging™, Garmin Livescope™, and Lowrance ActiveTarget™.
I recommend you call Humminbird and ask them if the Helix series is compatible with a 14.8 vdc battery
For what its worth, I use a similar (different brand) lithium with my Helix 7 for ice fishing. No problems with it. A few more amps and a lot less weight to carry.
I personally have a 7ah lead battery and it powers my ice finder for way longer than I can fishing in one day. I charge mine after a day’s worth of fishing with a little charger made for it. Take about 3-4 hrs of charging. Less (weight and space) is “more” to me.
Does anyone know if I would be able to use this for my humminbird helix 5 ice fish finder have a couple of batteries for it but want to cut down on weight ](Screenshot 20250101 132912 Chrome — Postimages)