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I would replace both. Less problems later on. And with batteries in parallel, the weaker one will most likely pull the stronger ones down, thereby reducing your run time. Good luck.
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I would replace both. Less problems later on. And with batteries in parallel, the weaker one will most likely pull the stronger ones down, thereby reducing your run time. Good luck.
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, I too would replace both. For me it would be the knowledge that both were same age and the extra assuredness they were as strong as possible on the water.
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Im over here not ever remembering my lead acid batteries resting over 12.5v... my starters have always been at 12.4-12.5 when i go fishing. I run lithium now for the rest, agm and lithium will obviously be higher.
I have a brand new interstate group 27 starting batt (2 weeks old) that i charged to full on sunday with the noco onboard. Just checked right now as writing this and its 12.5v resting (multimeter on terminals). Battery switch is off so nothing drawing power.
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