The Toyota FJ Cruiser also includes a built-in 120V electrical outlet in the rear of the vehicle. Standard cell phone chargers such as the unit provided by Samsung for our example here are intended to connect to a 120-V electrical receptacle or a 240V AC receptacle (most adapters handle both voltages) and to provide an output voltage of 5-Volts DC.īecause the current requirements to re-charge a cellphone is very small, you can do a lot of cellphone re-charging from a car battery without much worry about running down the battery even if the vehicle engine is not running.Īt left, using a Toyota FJ Cruiser dash power outlet as an example, we illustrate the easiest way to re-charge a cellphone for emergency use when there is no electrical power in nearby buildings. ![]() There are several approaches to using the 12-V electrical system in a vehicle for light-duty electrical use, such as re-charging a cellphone, flashlight, or computer, ranging in difficulty from trivial (just plug it in) to suitable for a handy person who has a knife and some small gauge electrical wires at hand.Ĭonnect a 12-volt USB adapter to the vehicle's utility outlet or cigarette lighter socket as light-use backup emergency electrical power sources - recharging a cell phone or operating a tablet or laptop computer How to use ordinary cars, trucks, vans, etc.
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