i just bought a traxxas jato with a 2.4 ghz, i use 4 die hard AA 2000 mAh. the die hard has a great charger that comes with 4 AAs. i have charged and recharged these, for my other jato, 2000 mAh AAs, they work great. you can get the charger and 4 batts at K/mart. there is two models. you want the older model 9304. not the 3493083, it isnt bad i just like the older one. also duracell makes a good AA batt,1700 mAh that works good also.