Harness your vehicle’s battery to efficiently power your CPAP/BiPAP machine on the road while charging USB devices at the same time! The TRIPP LITE PowerVerter 200W Power Inverter continuously supplies up to 200 watts of 120V AC power to a single AC outlet, as well as 2 USB ports, from any 12-volt battery or “cigarette” style socket like those found in most cars, boats, and other vehicles.