Balanced Battery Wiring
The general rule is that when wiring two 12V battery banks in parallel, you take the pos lead off one bank and the neg off the other. But what if the battery interconnect cabling is much heavier (...
Forum Discussion
Sam Spade wrote:
The jack will be operated for short periods and not very often so it probably won't make any practical difference but..........
Is there any good reason NOT to connect it "right" ??
The pos post on the "correct" battery is full up with cables and an inline fuse block. Whereas the pos post on the parallel battery is not.
And I guess I have issues with the link PianoT provided. The first example uses an "interconnecting lead resistance" of "0.0015 per link". That's about one foot of #12 ga wire. Who uses that? My batteries are interconnected with 8-12" of #1 ga, or 0.000126 ohms per foot. Or is there some connection resistance besides the cables?
And I'm certainly not talking about 100A current, as in his example, the inline fuse for the tongue jack is 30A. Although I'm also tempted to move a second cable that's fused at 60A.
