I've been running these packs in my RC's. [link=http://www.batteryspace.com/index.asp?PageAction=VIEWPROD&ProdID=78]Battery space[/link] I use to have a Hyper 7 and the flat pack worked real good. But it didn't fit into my Kyosho SP-1 so i re-soldered it so it's like a normal Hump pack.

Im in the process of making 2400 AA cell RX pack. But I have noticed it's heavier.