I am not sure what electrical principle you base your answer on. You might explain what you think would cause two identical fully charged batteries connected in parallel to cause a 'power surge'. Of course you never stated whether they are connected + to + & - to - or connected + to - & - to +.It was in interview question that I'm just trying to see if I answered correctly. As best as I can remember that's how it was worded. I'm only assuming both are charged and are identical batteries. I said you would get a power surge because of a huge increase in current that would likely damage the other battery and components. The components can be anything that is on the same parallel circuit
All I was looking for. That's good enough for me thanks.Basically the good battery will discharge into the shorted battery with a current equal to the battery voltage divided by the combined (series) resistance of the good battery and the "shorted" battery.
What is that suppose to mean?A thick skin may also help.