BFL13 wrote:
Ok that explains the extra wires that I mentioned. Somebody who knows this better can comment, but it looks like you are "tapping into" one pair for some loads instead of the whole bank for all loads and that might have one pair working harder than the other. Your jumper is supposed to negate that, but I don't know if it would.
The water loss diff might be more to do with an antimony difference then.
Wrote this response to another poster above regarding voltage loss across the two "tie" jumpers.
"By the way, the calculated resistance of the jumper wires, (both the series connections and the parallel connections) are .000047 ohms. If I were ever to pull full load (i.e. 400amps) through any one of those jumpers, the voltage drop calculates out to be .0188 volts DC which is .00156% of the 12vdc"
My feeling is this is sufficient to balance the loads between the two series banks.