[RE-wrenches] Battery interconnect cable length

[Benn At DayStarSolar]

Since batteries seem to be a hot topic lately, I've got a question...
...in a single 48V string, (24 x 2V) if each interconnect cable  is 14"-4/0awg and one cable in the middle of the string must be longer (btwn 20"-24" total length)...
How detrimental will that be to the overall efficiency?

Should it be OK or should the awg size for the longer cable be larger?
What other factors should I consider?

Thanks,
benn
Sent from a 'smart' phone, with tiny keys. Please excuse shortcuts and typos.