I have heard, like everyone, that 5 volts is about it.
But, What is the most voltage that anyone here has ACTUALLY tried to pump thru a Bit or ZZ pcb- WITHOUT frying it??
The reason I ask is that I am building a dragster (thanks Ripper for the inspiration!) and want some serious power. I can build a 5 or 6 cell battery pack just as easily as a 4 cell

.
My test pcb will be a ZZ board I have left over from the clone pcb swap I did on one of my ZZ- If I fry it with 5 or 6 cells, who cares?
Just wondering what people have REALLY done.
Thanks!
John