thank you guys for all the repsonses. this is the info i was looking for i currently have the 977 and i was lookingt at going lipo but didnt want to go buy a new charger right now i had asked else where and people were saying the 977 is the worst thing to charge lipos. and that was one of the reasons i bought it becuase i currently run nihm but wanted to be able to get lipos and this says its lipo compatiable. i am looking at getting a hyperion soon since im converting my 8t to brushless and ill be running 4's & 5's but for the time being i hope my 977 holds up any more info would be great thanks again guys.