I bought the marine battery at walmart, I was completely surprised as to how cheap they were.
I used the launcher today, had a few hiccups at the beginning, it would break every clay as it launched it so I ended loading only half the capacity it holds and it worked flawlessly for the next 3 hours. Great piece of equipment, just need to troubleshoot and see what happened with the clays. It could also have been a batch of bad clays.
I was amazed at how lousy I am with a shotgun, had a hard time hitting the clays. Funny thing is that I bust clays at 230 yds all day long with my 22lr.
Thanks for the feedback guys.