Hey everyone,
I’m looking for some insight into a battery drain issue on my boat. I’m experiencing a problem where, about an hour into a day on the water, I get a low battery warning on my Helix 9 unit, but not on my Helix 7. I get the low battery warning only when I start the main motor. Both units, along with my live well pump, bilge pump, and main motor, are powered by the same Group 31 lead-acid battery 225 Res. I've tried turning the brightness down or even putting them on night mode, replacing the battery - which temporarily solved the problem, but it happened again on the second trip with the new battery-, testing the battery with a multi meter - which shows it holds a charge -, a voltage test by keeping the negative end of the multi meter on the negative post and checking each positive lead - all reading were 0 -, checked all fuses which seem to be in order. Not quite sure where to go from here. Any help would be greatly appreciated.