How to Convert a Car Battery Into a Power Outlet
- 1). Connect the red (positive) power inverter terminal to the positive (+) battery post. Connect the negative (black) power inverter terminal to the negative (-) battery post.
- 2). Turn on the power inverter. Allow the power inverter to "warm up" for at least five seconds.
- 3). Plug the electrical device (such as a lamp, vacuum cleaner, etc.) into the inverter power outlet.
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