GRDE&reg; 26W 5.2A 3 USB Ports Car Charger, Powerful Cigarette Lighter USB Charging Station / Dock, Portable Micro USB Car Charger for iPhone, iPad, Apple Watch, Samsung, Cell Phone, Tablet, GPS, etc. Input DC 12-24V, apply to both DC 12V cars and DC 24V cars. 3 USB ports, max total output 5.2A (1A*1 + 2.1A*2), charging 3 devices simultaneously. Intelligent charging, distribute current at fast possible speed (up to 2.1A for 2 ports, up to 1A for the other port). Safety protection, prevent overcharge, overcurrent, overvoltage, overload, short circuit, etc. Compatible with most DC 5V USB-Charged devices, like Apple Watch, iPhone, iPad, Samsung Galaxy, Camera, GPS, etc.