Listen to what everyone else said, and get some EP's. Those maxamps cells are alright, but will show their weaknesses when paired with a brushless system. For how much they cost, you're better off with a quality brand, such as EP, GP, and IB. I have had problems with my two IB4200 packs, but my GP3300's, IB3800's and EP4200's are performing beautifully. If you're on a serious budget though, pick up those 15.99 8-cell Tenergy 3300 packs w/ Deans plugs from allbattery.com, and rebuild them.