Power conditioner is an electronic device, commonly taking the form of a power strip that smoothes out the peaks and dips of common household AC power. They create smooth power for precision electronics, such as computers and sound equipment. Many power conditioners also function as surge protectors. Power conditioners are different from the typical uninterruptible power supply in that they continuously charge the battery, and continuously run the equipment off of battery power. Most UPSs simply pass the source power straight through while the source power is on. This can cause some sensitive equipment to fault, or perhaps even be damaged in extreme cases. A dual conversion online UPS is a kind of power conditioner. When running an electric generator, using a power conditioner for electronics is a good idea. Ideally, AC power comes in the form of a pure sine wave. Some generators produce power that is closer to a square wave than a sine wave. Conditioning this kind of power requires more than a power strip sized power conditioner. A larger unit with a battery is generally required for this application.