For 4.8v applications on .60 and up planes I've been using these 3000mAh packs...


[link=http://www.bphobbies.com/view.asp?id=A1130077&pid=NKA06124]Click me![/link]

Also for ignition batteries for gassers....

Yeah $8.71 for the pack!

They are so cheap, that I purchased one to break it apart and use the cells separately for glow plug ignitors.


Now if I could only find 3000-4000mAh 6v packs as cheap!