wiring direct from battery

[BBW]

i installed a helix 5 g2 and a helix 7 g2 on a 2006 fisher aluminum boat wired the units to existing wiring under dash and at bow, both units load up real slow and sometime go black screen, then i have to unplug power supply and replug to get units to come back on, my question is if i run 12 volt direct from battery will i need to run both power and ground or just run power and pick up ground at dash and bow. do you think that running direct will solve this problem

[Bob B]

You need to run both power and ground with a larger wire than you think you need and put a spade type fuse at the battery. I use this type wire because it has noise rejection characteristics. https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

If you are having these issues with both units it is a good chance power is the problem.

[BBW]

thanks bob i tried the seven on power supply loaded up fine

[riverc]

When I did my Helix 7 & 10 I ran a circuit for each head positive & negative using #10 wire.i also cut each power cord 2ft long.I soldered those 4 connections and ran straight to a spade fuse terminal at battery.They are working good.Alot better than my last setup hooked to boat wiring dealing with low voltage.