Dual USB ports 5V 2.4A can charge for two devices at the same time, single max output 3.4A
Be safe for driving, battery voltage detection:
When car voltage is abnormal, the red warning light of ROIDMI 3S will keep flashing and it will produce alarm sound, meanwhile, phone data of APP will synchronously display it, double reminding, be safe for driving Smaller design but multi-functions:
Music player / FM transmitter / car charge / battery monitor for car / GPS navigation broadcast / APP smart remote Easy to use:
20000mAh Large Capacity
More durable and optimises charging efficiency, offer constant power
Dual USB Input and Output
Two USB ports, which can charge the devices at the same time, the USB-C and Micro USB provide two charging ways, convenient and fast
Up to 18W Power Input
12V / 1.5A, 9V / 2.1A up to 18W power input, deliver fast and efficient charging for each connected device.
High-density Lithium Polymer Batteries
Adopts premium Lithium polymer battery cells. Itās compatible with smartphones and tablets as well as a variety of digital cameras and handheld gaming devices.
Supports USB-C both for input and output, up to 45W.
The USB Type-A single port provides 5V/2.4A, 9V/2A, 12V/1.5A fast charge but it gives 5V/3A output when two charging ports are working at the same time.
Surge protection, short circuit prevention and more advanced safety features protect you and your devices.
Xiaomi Mi 20000mAh Power Bank 3 Pro has three-port output design, USB-C single port can provide 45W