Dual 12v Battery Hookup Question
Purchased 2 new 27 series 12v batteries, added 2nd battery box and have them both vented to outside. Hooked Positive to Positive and Negative to Negative. Question is do I hook Pos and Neg from campe...
Forum Discussion
You want to balance the drain and charge currents feeding your two batteries. This means keeping the like cable lengths the same lengths.
This can be achieved by wiring in this fashion...
If you wire up your two 12VDC batteries in this fashion you see the first battery cable lengths are shorter then the cables feeding the second. The first battery will drain and charge at a different rate than the second battery will do. The small drop in resistance with the two different lengths really come into play when you start drawing heavy battery currents. Lots of charts on here from the local battery experts showing this happens.
This is the plan at any rate to balance both batteries as best you can with equal lengths of battery cables wired in the proper sequence..
Roy Ken
This can be achieved by wiring in this fashion...
If you wire up your two 12VDC batteries in this fashion you see the first battery cable lengths are shorter then the cables feeding the second. The first battery will drain and charge at a different rate than the second battery will do. The small drop in resistance with the two different lengths really come into play when you start drawing heavy battery currents. Lots of charts on here from the local battery experts showing this happens.
This is the plan at any rate to balance both batteries as best you can with equal lengths of battery cables wired in the proper sequence..
Roy Ken
