Review on USB C Car Charger with 2 Sockets Cigarette Lighter Splitter - 12/24V 80W, Dual USB Type-C Ports, Separate Switch, LED Voltage Display, Built-in Replaceable 10A Fuse - Compatible with Mobile Cell Phone, GPS, Dash Cam by Hassan Tomlinson

Well, having a 2-pin cigarette lighter splitter is not interesting for most people. However, if you have an electronics or automotive electronics background, this connector has one standout feature. The ability to provide the driver with a constant display of the voltage at the terminal of the car battery. Why is it important. Car batteries have a voltage of +12V when the engine is switched off. When the engine is running, the alternator in your car will kick in between 13.2 and 14.0 volts; - so that your battery is charged while driving. If you find the voltage is 12.0 volts or less while driving, you know you have a problem. Either your alternator has failed or something has gone bad in your battery causing it to discharge. This small feature of this product lets you know immediately when you encounter any problem. Great idea and great product.