I have had good luck with the trinity IB or EP nimh packs when I used them. I use a losi lipo now and it's far superior. I don't even see the trinity packs listed but j have also used the team Orion pack and it worked well too. Here's a link
http://carolinasrc.com/webstore/scri...idproduct=1828
this pack looks good to
http://carolinasrc.com/webstore/scri...dproduct=14809