I recently realised, that instead of prefboard soldering i should make a nice looking compact PCB. The board with IRLS3034 (9s) can handle up to 120A (-edit >peak< ) and 80A continuous. There is also a 60v version (12s) that can do exactly the same, but the fets cost a tiny bit more.
This is the testing of the first PCB-s. I quickly realized that the 2oz copper was not thick enough, so the next ones will have thick solder tracks all across the board. Here is the “bench test” version with copper pads, i want to over-current test these and push them to their limits:
Also a smaller version(50A max):
What do you guys think? This could be done on a prefboard really well too!