Quarry Man Posted March 29, 2021 Posted March 29, 2021 have a 2007 Mercury Optimax hooked up to an Optima Blue Top Cranking battery. Used the boat all summer and had no issues. Took the boat to school and it sat for about a month. Boat wouldn't trim or start when I took it out. I charged it up a few times and it would run. Every time it would sit for a little while, the battery would not be charged. I took the power poles and disconnected them. That seemed to work ok; however, now the only thing I believe is hooked up to the battery is the motor. It keeps dying on me. Half the time I've wanted to take it out the motor won't start. Engine is in great shape as well. Quote
Super User jbsoonerfan Posted March 29, 2021 Super User Posted March 29, 2021 Take the battery and have it tested. Quote
Quarry Man Posted March 29, 2021 Author Posted March 29, 2021 Just now, jbsoonerfan said: Take the battery and have it tested. will Lowes or Walmart do this? Not a lot of other options here at school Quote
Super User jbsoonerfan Posted March 29, 2021 Super User Posted March 29, 2021 Wal Mart should be able to test it. 1 Quote
Quarry Man Posted March 29, 2021 Author Posted March 29, 2021 Just now, jbsoonerfan said: Wal Mart should be able to test it. awesome, thank you Quote
Super User J Francho Posted March 29, 2021 Super User Posted March 29, 2021 Do you have a main battery shut off or disconnect it when you let it sit? If not, I'd be looking for a small drain on the battery. My Bullet had a couple lighted toggles that wouldn't shut off, but that battery had a main shut off switch. Quote
Super User Jig Man Posted March 29, 2021 Super User Posted March 29, 2021 My motor has a constant drain if I don’t use the cut off switch. Quote
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