PriorityStart! stops dead batteries. Forgot to turn off your phone, the kids left a light on, didn't get the door shut all the way, or simply, a short in the electrical system - any voltage drain, PriorityStart! monitors the power left in your battery and turns off accessories before they drain the battery dead. There are no buttons or switches to push, no lifting the hood. Just turn your ignition key to start the engine and away you go. Start safely from inside your vehicle.