Re: Boiling Batteries
Since this is a three output unit but it only boils the troller batteries, I suggest you disconnect all of the outputs from their respective batteries. Connect the output for the start battery to one of the troller batteries. If it still boils, move it to the other troller battery. If that one also boils but that output does not bother the start battery, I'd say you have a couple of bad troller batteries. However, before doing anything, connect one of the troller outputs from the charger to the start battery. If it boils, that points to the charger. Repeat the test for the other charger output. So you could have an either, or, or both situation. Bad batteries and a bad charger that killed them. That charger should not boil the batteries. You could also stick a voltmeter on the battery being charged to see what the charge voltage actually is. Lastly, if this is a charger that "load shares", I would then almost suspect that the load share circuitry has gone south.