Review on 🚗 Rocketek USB Car Charger Splitter Adapter: 2-Socket Cigarette Lighter Power Outlet with LED Voltmeter, Dual USB Ports - Charge Phone, Tablet, GPS, Dash Cam & More! by Sfl Richardson

It's great and can handle a little weight without gravity even when both slots are full. USB ports are an added bonus. For example, it has power buttons so if I'm in a safe area I can leave it plugged in and it'll still charge a device, usually a battery (I rarely leave my iPad or phone out of habit). In the city (San Francisco) I never leave anything visible in the car, it's small enough to hide easily. (Note to visitors: never leave anything in sight when visiting San Francisco or when packing something in your trunk, stop at a gas station or safe location at least 7 blocks from your destination, otherwise there is a 2- minute window will be broken and everything will disappear. ).