RADIO CONTROLLED SNOW MOBILE PLEASE READ CAREFULLY BEFORE OPERATING THE VEHICLE. IT iS RECOMMENDED TO OPERATE THE VEHICLE UNDER ADULT SUPERVISION. BATTERY INSTALLATION: {A)TRANSMITTER: 1 Puts point of your fingerprint the sail on the blustery compartment cover then lithe cover to open il cleanser ore "8V" battery. 7. Qbserve correct polarities (rva and -ve poles). 4 Replace the battery door, compartment is at the bottom of vehicle. 1.