Dont go cheap with the packs or chargers. you can get pretty high mAh count packs for very good prices now. stay with th Nihm packs Nickle Metal Hydride. This will be one of the best investments over the long run. and you get much better performance and run times. the packs that come with any of these tanks are junk, and can be very unstable. Prone to ballooning from over heating on fast chargers. the stock chargers have a very slow rate. you want a peak charger to get the best performance.