on my Magnum remote panel, I press and hold the CHARGER button until the screen changes to EQUALIZE...
it basically 'overcharges' the batteries for about 4 hours, then goes automatically back to normal charge mode.
You will hear the batteries 'boiling' while this is happening, which is normal. Check and make sure you have the correct water level before starting, and check again after it's finished.
Of course, you can only do this if you are on 50a Shore Power...
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