USB cable Features:
Input:5V 2.4-4A
Output:8.4V 2A
Conversion efficiency:92%  (DC-DC Efficient conversion rate)
USB plug Specifications:USB2.0
length:120cm
USB power adapter Features:
Input voltage: AC 100V-240V 50-60Hz
Output:5V 3A
Package:
1 x USB drive cable
1 x DC Coupler CP-W126
1 x 3AMP usb adapter
Compatible with the models:
For Fujifilm X-A1
For Fujifilm X-A2
For Fujifilm X-A3
For Fujifilm X-E1
For Fujifilm X-E2
For Fujifilm X-E2S
For Fujifilm X-M1
For Fujifilm X-Pro1
For Fujifilm X-Pro2
For Fujifilm X-T1
For Fujifilm X-T1 IR
For Fujifilm X-T2
For Fujifilm X-T10
For Fujifilm X-T20
For Fujifilm X-T30
For Fujifilm FinePix HS30EXR
For Fujifilm FinePix HS33EXR
For Fujifilm FinePix HS50EXR
note:
1.In order to make your camera work better,please use a high-quality mobile power, mobile power bank is output guarantee of at 5V 2 AMP to 4 AMP current. When the power is not enough, will not start or can not shoot properly, Please select a larger current of at least 2.4A, DC 3 Amps or more is better.
2.Do not use the computer USB supply for the camera,because most computer USB 2.0 output voltage is 5V,But the current is less than 500mA.
3. Some mobile phone / tablet usb charger with identification resistance, can not identify the camera, the current can not meet the requirements, it is not recommended.
When you want to long time shooting outside without AC outlet, then you'll feel it's not convenient. Also you can use with a DC 8.4V power bank, but it's not easy to find a DC 8.4V mobile  power bank. 

As the battery compartment cover cann't be closed, there may be CP-W126 dummy battery, can not be normal contact.
By one of the following two ways to solve:
(1)The end of the virtual battery plus some thick paper
(2)The battery metal contacts are pulled a little higher