I purchased a used Class A -- All works well, but am having problems with using 12V. Human error? or mechanical/electrical?? We did not have electric hookups, so was able to use the generator (worke...
Since things worked with the generator on I'd say you converter works. I think you didn't leave the genset on long enough to charge your new batteries. If you can, plug it into AC or connect a battery charger to the house batts. If you can't you'll have to run the genset for quite some time.