cell charger, or any other 12v DC accessory into any cigarette lighter socket, in any vehicle, and have it work just fine. When a cigarette lighter socket stops working or seems to malfunction ...
CIGARETTE LIGHTER SPLITTER ADAPTER - Splits 1 car cigarette lighter port to 2 DC ports, 1 cigarette lighter ... allows you to connect two of your 12 volt low power devices at the same time.
A mini UPS with 5V, 9V, 12V DC output and optional PoE can be used to power a WiFi access point, a broadband router, an SBC, ...