ouch thats a bit too much, all of mine use 8, well i should be getting my rc18 today and lets see how many that needs... you can always throw in some TX batteries, or buy some, i know some places sell them and you recharge it through the remote
try these:
http://www.hobbypeople.net/prdcls/battr01.asp
yea mine might take a while, too many things to decide from, should i get a $500 2.4ghz or a $400 2.4 ghz or a $50 2.4 ghz? should i get a Novak BL system or a CC system.. what servo to buy... i think i might go nuts or my head might explode before i finish it