Review on Multifunctional Car Charger with 3 USB Ports, Voltage Meter and Socket Splitter - Compatible with iPhone, iPad, Apple Watch, AirPods, Samsung, LG, HTC, GPS, Android Phones - Black by Jon Manning

This is exactly what I need. This allows me to have an extra plug to connect my GPS which requires the original plug cable for the traffic option to work. Plus allows me to have a couple of high power USB ports. The battery level is a nice bonus as my convertible sometimes sits idle for months during the winter and I can easily check if the battery needs charging. It also allows me to check if the battery is being charged while driving. I also like that it has 3 USB ports placed at 2 different angles. Fast charging seems to work. Many devices that claim fast charging don't always offer it.