Modern smartphones have opened a wide range of opportunities for motorists. In particular, thanks to the mobile phone you always have a modern up-to-date navigation system that can be updated, the version is more up to date, it does not allow you to buy a navigator, but your mother always has an up-to-date version of the navigation, so that you can travel safely and safely anywhere. There are a very large number of free apps that make turning your smartphone into a full-fledged on-board computer, so you can track traffic jams on roads, build routes and get up-to-date roadside information about the driver’s car services you need. Drivers have long appreciated all the benefits of using the smartphone on the go, but there is one thing: how to charge the phone in the car and whether it is possible to charge the phone with the car off?