Quote:
Originally Posted by jlonginav
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I will keep a eye on battery 1. If cells remain at "fair" I will replace.
Any other suggestions are appreciated and all your input so far has been great.
Happy Camping
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One suggestion: If you replace one battery, "suck it up" and replace both. If there is anything defective (or worn) about the older battery, it will "draw down" the new battery to its level. In other words, if the new battery has a capacity of 105 amps and the "older, partly worn battery" has been degraded to a point where it has a capacity of 85 amps, then the new battery will never achieve it's full potential and could damage the new battery.
Chances are good (or at least probable) that if you have one "weak/bad" battery, it's inability to accept a charge and provide a discharge has already affected the other battery, just not to a level that you can recognize when comparing the two "compromised batteries" together. It won't be the same when you compare a new battery to the "partially damaged, but still functional" battery....
It's easier and usually more reliable to replace ALL the batteries in a bank at the same time to prevent that "mismatch issue".....