February 06, 2012 at 8:31am
I have a Minn Kota On Board 2 bank charger that is 6 years old. I have never had an issue with it, but it appears that it's only charging one of my batteries right now. After charging for a couple of days, one battery is fully charged and the other reads 4.4 volts when tested with a volt meter. I hooked up my portable charger to the battery that is not being charged by the on board, and it appears to be taking a charge, so that battery doesn't have a bad cell. My question is this. On the top of the charger, it says battery 1 on one side, and battery 2 on the other. There is a red and green LED light by the battery 1 label and also by the battery 2 label. When I plug it in right now, battery 1 has both the green and red LED lit, and battery 2 has just the green LED lit. Has anyone had this problem before? I am curious to see if it was a loose connection, or if the unit had crapped out if this happened to one of you. All of my connections appear to be corrosion free and tight. Thanks in advance for any help.