Review on ADSDIA Aluminum Charger Waterproof Motorcycle by Hunter Feerey

I have replaced several cigarette lighters in my cars with these 12V USB chargers. They're great for charging phones (Android and iPhone) and with the included voltmeter you can monitor battery status and check if the car's alternator is running. For some reason they made them a little bigger than lighters (at least the ones on my Land Rovers) so the holes need to be made a little bigger but that means you can get a snug fit. I highly recommend them for an easy way to hook up a voltmeter and add USB charging ports to older cars.