Recommendated Car battery:(they are not included in the package) 1.4X AAA battery:when in normal mode,You can play it for about 100 minutes,in barbaric mode,it is 30 minutes time 2.6X 1.2v 900mAh Ni-cd rechargeable battery,use doubleplow charger,when in normal mode,you can use for about 50-90 minutes,in barbaric mode,it is 30 minutes time
How To change to barbaric mode: Open the swith of the remote control,it is defaulted into the normal mode,if you want to run in barbaric mode,you need to close the power of the transmitter,and then push the left throttle rocker to the max and open the power switch at the same time