Re: Totally ....
no, if there's a short in the cable the power will flow back and not (mostly) pass through the battery system at all.
e.g. it will not charge.
One way there could be issues if somehow the negative (katode) and positive (anode) lines in the cable switch sides and you try to "charge" the power bar with the wrong terminals connected to the wrong wires.
A short circuit can also cause this but it is not an overcharging issue that will cause the spectacular failure here IMHO.
Biting the hand that feeds IT
