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Old 07-21-2021, 10:59 AM
SailorChlud SailorChlud is offline
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Join Date: Jan 2017
Posts: 359
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Thanks - I did not think to look at the ACR while on the water to see if the LED's were lighting up. I do see that the ACR will not charge when the one battery gets below 9.9 volts, so clearly it would not have charged it last trip while the battery was below that. I am just not sure why the battery dropped that low. I charged it overnight and it came up to only 12.06 volts after 12 hours, so I think it is the battery. Thanks for the help!
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Old 07-21-2021, 09:47 PM
erebus erebus is offline
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Join Date: May 2012
Location: Cape Cod
Posts: 428
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If you suspect its the battery, best thing to do would be to give it a load test.
I've seen batteries happily charging away at 13 volts and holding 12+ when disconnected, then give them a load test and they immediately drop to 8 or less.
Only taking a superficial surface charge. Bad cell, or the cells are sulfated...
Just a thing that happens to batteries sometimes.



https://www.amazon.com/OTC-3180-Batt...6918388&sr=8-4
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