Quote:
Originally Posted by tubman
I am assuming you mean "bring it to full charge".
How are you measuring the batteries state of charge? Since it's an Optima, you can't stick a hygrometer in it. Are you measuring the voltage with a good meter, or just relying on the meter on the charger? Does the battery function well? Maybe there is no problem if it does what it should. I am on my third Optima, and they all went well over 10 years, so yours should still be good.
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I've had similar experience... most go ten years, one is at fourteen.
I do know charging takes the lifespan down. That's clearly noted in the instructions.