How to Run an AC Unit From a Battery

Portable air conditioners are often used to cool single rooms or small outbuildings. However, some buildings have no electrical service. If you want to use an air conditioner unit in such a building you need a portable power source. If you wish to use a lead-acid battery you must convert the DC output power from the battery into AC power. You can use a power inverter to accomplish that task.

Things You'll Need

• 1,500-watt or larger power inverter
• Lead-acid battery
• Portable air conditioning unit

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Instructions

1. • 1

     Connect the red power inverter lead to the positive battery terminal. Connect the black power inverter lead to the negative battery terminal.

   • 2

     Turn on the power inverter. Allow the power inverter at least 30 seconds to charge up completely.

   • 3

     Plug the air conditioner into the power inverter outlet. Turn on the air conditioner.