This is not a brain teaser, it's a serious question involving batteries.
I have a diesel MB, an old one. Originally, they were powered by two standard 6 v separate batteries that were connected in SERIES to make a 12V battery.
This got me thinking.
If I had a 6V battery producing 50 amps = 300 watts and another 6 V battery producing 100 amps = 600 watts
If I put them in PARALLEL, they would be a 6V system producing 150 amps, right?
If I put them in SERIES, would they be a 12V battery producing 75 amps?
After all, 900 watts is 900 watts is 900 watts, right?
I really don't know the answer and I'm asking.