hey guys, setting up a guitar with emgs next week. question is, how do you do the 18v mod? is it in series or parallel?

because im under the impression you just plug the second battery in to the bus/circuit board thing beside the other battery while my dad says they may have to go from the postive of one batter to the negative of the other and then to the bus/cicuit board/output jack.

if im horribly wrong on anything feel free to correct me
just google it dude... i dont get why no one's heard of google
you would get your answer faster than on here. and already be able to look at a full discussion of it.

If you connected it the way you said, they would be in parallel, meaning you'd still only have 9v, but the batteries would last longer. Your dad was right, connect it the way shown in the pic SKArface posted.