I have a couple of 12v batteries that I'd like to use to power a cooling apparatus while camping for several days.
I also have a 15W solar panel I'd like to use to top-off the battery.
Can I use the battery while it is charging? Or would I have to disconnect the solar panel prior to using the battery?
Alternatively, I could charge 1 battery while using the other, and simply swap them out - is this preferable?
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