I currently have a Ranger Pro Series 4 bank charger. 2 of the 4 banks will end up flashing after a day of charging. I checked the batteries and they needed to be replaced so they are now all new. Took the boat out and charged it upon my return from fishing. Still the same thing, 2 will end up flashing. The lights will go from 5 solid red lights and end up flashing 3 red lights on those 2 banks.
Does this mean the charger is broken? Is there a way to repair it???