Many of us use the Auxiliary Power Outlet to keep our devices charged. Doing this for my ipad I found that it only limited charged it or would not charge at all and it also caused my ipad to get hot. Somewhere I heard that if you use a Power Inverter it would solve any problems. An inverter takes in direct-current (DC) power—in this case, from your car’s 12-volt system—and converts it to the alternating-current (AC) power required by refrigerators, sump pumps, and most other household devices. It has usb ports as well as regular type plug ins. I went on a ride yesterday and had the opportunity to use an inverter and found that it really works. My ipad remained cool and charged. I purchased an inexpensive one from Bestek but there are many brands out there. Hope this helps someone.