Perhaps these will suit the needs of feathers better?........sorry no Ant stuff:sad:
http://www.a123racing.com/http://www.a123racing.com/

Related link for obtaining similar batteries from the new Dewalt battery packs.

http://www.rcgroups.com/forums/showthread.php?t=587606http://www.rcgroups.com/forums/showthread.php?t=587606