What determines battery cable size?
Hey all, I'm looking into replacing the factory battery cables in the spring to hopefully get more efficient (as in shorter) generator charging time. My question is, what do I "need to do" vs. what...
Forum Discussion
johnm1 wrote:
Do I count both the pos and neg in the cable length? As in, 25ft one way is counted as 50ft in the calculations?
From that Blue Sea link I provided earlier ...
"Find circuit LENGTH IN FEET along the left side of the chart. Note that the total length of the circuit is the roundtrip distance from power source (usually the battery) to the product and back."
That's a mighty l-o-n-g run that for high current draw is going to take substantial cable gauge in order to achieve a minimal 3% loss. :E That's why I left my original converter in place, turned it off, and mounted my replacement charger in the trailer's front pass through cargo compartment, not far from the battery location ... minimal loss even though I used just 4 gauge cable. :)
