Paula, where did you find that 67.5 volt battery. I need one for a wood moisture tester. Does it look like a big nine volt on top?
Also, to hook up 9 volts in parallel, which way is that? + to - to + to -, or is it all the +'s together and all the -'s together? I know, rookie question, but it's been a long day and I am feeling too dang lazy to look it up
And can I add some D cells to make it closer to the actual voltage, or will it matter?