Just looked and i am using the hobbico LiFe 1300mah pack. The Hobbico part # is HCAM6411 Tower is out of them at this time. but maybe the Hobby store by you may have them. If not try Prop Shop Hobbies in Warren he has everything. Just don't forget about using a charger for them. I still use some nimh packs but have gotten away from most of them, have had problems during charging and corroding. they are just dirty nasty things.