Lot Micro Chargers Track With 2 Cars 2 Launchers Tested Working Toy. Launchers use 2 AAA battery each (batteries not included). You can hear the chargers humming but the cars never do more than just roll out of the charger when you press release button. Not sure if I am doing something wrong or if it is an issue with the cars, The chargers or both. Selling AS IS. Please see pics for all included and condition.