I'm reading that a good fully charged battery should be at 12.3 V resting. My battery has been sitting on a smart charger and maintainer and says 12V only and the charger
Why does the voltage of my AGM battery decrease immediately upon use? Literally, in a few seconds, 12.7V to 12.4V and then it fluctuates back to 12.6V then to 12.4V, rise, and
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