A power inverter is a device that converts direct current (DC) to alternating current (AC) . DC is the type of power supplied by batteries, while many household electronics use AC. By using a power inverter, you can operate AC devices with power from a DC source, such as a car battery or a bank of batteries and solar grids.

Power inverters can be entirely electronic or a combination of mechanical effects and electronic circuitry. They are primarily used in electrical power applications where high currents and voltages are present. Power inverters are available in a variety of sizes, with common variants including 1,000 watt, 3,000 watt, and 5,000 watt models.

Some common uses of power inverters include:

• Operating household appliances, such as electric lights, kitchen appliances, microwaves, power tools, TVs, radios, and computers.
• Providing power for off-grid living, such as in camping trips or remote locations.
• Providing emergency home backup power during power outages.
• Delivering power from high voltage direct current transmission systems to alternating current distribution systems.

To use a power inverter, you connect it to a DC source, such as a battery, and plug your AC devices into the inverter. The inverter draws its power from a 12-volt battery, preferably a deep-cycle battery, or several batteries wired in parallel. The battery will need to be recharged as the power is drawn out of it by the inverter, and it can be recharged by running the automobile motor, a gas generator, solar panels, wind, or a battery charger plugged into an AC outlet.