One of the most widely used inverters is the 12-volt power inverter which changes 12-volt DC power from sources like car batteries or small solar panels into AC power. These inverters are common for portable uses, like charging electronics in cars, boats, and while camping. They have a wide range of power ratings and can charge anything from smartphones to small appliances. These inverters are small, simple to set up, and often contain multiple output ports for easy device charging.