How to Run a Laptop From a 12V Supply
- 1). Determine the power usage of your laptop. This should be imprinted on the laptop's power block next to the word "Input."
- 2). Purchase a 12V-to-120V power inverter that can meet the usage requirements of your laptop. For example, if your laptop's input reads "120V 65W" then you will need an inverter that is capable of putting out at least 65 watts at 120 volts.
- 3). Connect the power inverter to your power supply. Most small power inverters are equipped with a cigarette-lighter style plug. This can be plugged directly into the cigarette lighter socket in a vehicle. If your power supply does not have a cigarette-lighter style socket, you can purchase a socket at most electronics stores.
- 4). Connect your laptop's power supply to the power inverter. Turn on your laptop.
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