hey guys just reporting back I bought two lipo packs used for a month the guy claimed he took care of them and charged them and not let them get too low with his duratrax ice charger...anyways cant wait to get it into my emaxx.....thanks for the replies...will report back..once I can afford everything in 3 weeks or so im going slowly at this..FYI its going in this truck with the HV-maxx....Oh yes is there anything else I need I heard a cut off voltage thingy?