Twelve-volt air conditioners can be purchased at online retailers, such as Walmart.com and Amazon.com. These air conditioners are typically portable and operated by a rechargeable battery, but they often include an AC adapter or car charger.
Twelve-volt air conditioners usually come with a remote and thermostat, allowing users to precisely control the temperature. Available models come with plastic or metal casings, misting compartments and the ability to run with or without a fan. A 12-volt air conditioner is typically used to cool a recreational vehicle, garage or car, but it can also be used for supplemental cooling of a room inside a house.