Originally Posted by
gauvins
This being said, there are battery banks with
high voltage output. Add the proper cable and you are good to go.
Interesting, guess I was partly wrong.
That said, it still seemingly needs to be charged at the wall, so unless he is good with the power it provides before being depleted, he is still back at square one, unless he had a generator that kicks out 12VDC and fabs up a custom cable.