Thread: 997+787=dead battery

The alarm voltage is set to off. I went out and checked it as suggested by Cane Pole. Warren..this is indeed that same battery. I guess I am reluctant to blame the battery because it is a brand new boat with brand new batteries. I guess a new battery can be bad....but the odds would be low I would think.

I would load test the new battery, and also check the charger as DTG and WarrenMn suggested. Could be either of the two causing the low voltage alarm problem.

I'd probably look for that screw that the factory dead centered through the wiring harness like they did on my new boat. Just enough to drain the batt. I load tested batt out of problem equation then found screw. Good luck.

Ok this is very strange. I charged all 3 batteries overnight and unplugged charger this morning before I went to work. It was showing 3 green lights meaning all were charged. Just a few minutes ago i plugged the charger back in and the battery in question is only at 50%. I have the 2 units...a bilge...and lights hooked to that battery and thats it. All 4 are off. This is driving me nuts.

Originally Posted by justforfun

I'd probably look for that screw that the factory dead centered through the wiring harness like they did on my new boat. Just enough to drain the batt. I load tested batt out of problem equation then found screw. Good luck.

sounds like dead battery or what Justforfun said.

Swap the suspect battery with one of the others. If the problem follows the battery, you'll know the batteries the problem. If the problem stays where the suspect battery was, then you have something drawing current there, or the charger is not really charging like it's telling you it is.

Dave

Just because the boat is new doesn't always mean you get new batteries. Look on the battery for a small sticker and it should have a date code telling when the battery was manufactured. There should be an alphabetical letter for the month and a number for the year. For example, H-07 or H-7, would mean that the battery was manufactured in August of 2007. A is Jan, B is Feb, and so on. Always be sure to check this when you buy a new battery off the shelf as well. Good luck and hope this helps! :D:D:D

I know someone told me years ago with my truck that if you loosen the positive cable and arc it on the battery post with everything off and you get a spark of any kind, something is drawing current. I've used this trick with many cars but should be the same with a boat. Something may be drawing current???


Buzz