BFL13 wrote:
mvas wrote:
Two wire segments carry 2/3 of the amps = higher voltage drop
Two wire segments carry 1/3 of the amps = lower voltage drop.
Since the amperage is not shared equally the system is not balanced.
The wire segments carrying 2/3 of amps, must be "doubled up" for balance
You never said if that was amongst the load/charging wires or just amongst the battery bank wiring.
I am discussing the battery inter-connect wire segments ...
See the '3 battery diagram' by Red31 on page 3 of this thread.
The Two wire segments labelled '1' carry 1/3 of the amps (lower voltage drop)
The Two wire segments labelled '2' carry 2/3 of the amps (higher voltage drop)
The Main +/- cables carry all amps
The wire segments labelled '2' should be doubled in size or twin paralleled to help balance the load.
Unequal amps in the inter-connect wires cause the same type of voltage drop error between batteries just like unequal wire lengths and different number of inter-connects.