Jumper for Batterys in Series
While helping a friend I noticed this,the jumper between the 2 batteries is much smaller than the ones for neg. and positive .Shouldn't they all be the same? Click For Full-Size Image.
Forum Discussion
I don't want to belabor the point, you're going to do whatever you think is needed, as you should. But just to add to the discussion...
Instead of comparing the series jumper size to the primary cables size, consider the cable size needed to handle the maximum current draw. The primary cables in the OP's pic are oversized for some reason. Not sure why, but there is no reason why the jumper has to match those.
The pic below shows the factory wire size in my fifth wheel. My converter is a 55a, so the wiring was designed to handle that, and the converter is on the far end of the coach, about as far away from the battery bank as it could be. No issues with wire size. It all works fine, as designed.
Instead of comparing the series jumper size to the primary cables size, consider the cable size needed to handle the maximum current draw. The primary cables in the OP's pic are oversized for some reason. Not sure why, but there is no reason why the jumper has to match those.
The pic below shows the factory wire size in my fifth wheel. My converter is a 55a, so the wiring was designed to handle that, and the converter is on the far end of the coach, about as far away from the battery bank as it could be. No issues with wire size. It all works fine, as designed.
