Replacing batteries one by one or in a pair?
Hi,
I have two Lifeline AGM 100ah batteries that are wired in parallel. They can be charged by solar, engine alternator and shore power.
One of the batteries is pretty dead (15 years old) and the other one (7 years old) still has 60% power left (tested at Auto Zone). Because these are so expensive to replace, I would prefer to just replace the one that is dead. Does this seem like an okay approach?
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