Gjac wrote:
I'm not sure I understand your post correctly. If your converter charges at 14.4 v on a "single 12 v battery" it should charge 14.4v on 2 6 v batteries wired in series to make 12 v. 14.4 v sounds like a good converter to me.
This is a normal failure. Seems to work as designed until a real load is placed on the converter, then some component is weak and goes open, preventing proper operation. A lot of times it is a solder joint, but finding it and actually fixing the problem is another thing. Normal open circuit voltage for an converter is 13 volts +/- 3 volts. I recommend the Powermax Boondocker converters for a replacement as they hold up better than the others and are fully adjustable. You can go to just about any size converter you want, but you need to be aware of the AC current draw if you do not have an management system or you boondock and use a 2,000 Watt generator as it could overload your system. The reason I mention boondocking, is a management system does not know you are using a smaller power input than it is calibrated for.
