Introduction:
The USB-C PD system can replace traditional AC adapters or heavy grips or batteries, it allows you to power your camera using the external powerbank/charger with USB 3.1 Type-C output to achieve long time shooting, no need to replace camera battery again and again.
Connect the USB-C Type-C plug to power source and put the coupler into the camera battery compartment to provide stable and continuous power supply for your camera.
The adapter cable is designed with voltage conversion circuit and circuit protection.
Full decoded, support to display the battery status.
Applicable power supply: power bank and mobile power bank with PD 9V protocol output.
Compatibility: Come with EN-EL25 Dummy Battery EP-5G DC Coupler fit for Nikon Z50 Z30 Zfc Camera
Features:
Decoded Type: Full Decoded
DC plug socket: DC4.0*1.7mm
Input: PD USB-C 9V/2A
Output: 7.4V-8.4V
Length: 220cm
Size: 50.5*33.4*17.6mm（Dummy battery）
        44*27*14mm（Step-down chamber ）
Net Weight: 85g

Package includes:
1 x USB-C to EP-5G DC Coupler Cable
1 x DC to EN-EL25 Dummy Battery Adapter

Instructions: 
Please use the power bank/charger with PD 9V/12V protocol output.
Firstly, plug the Type-C charging cable into the power bank/charger.
Finally, install the dummy battery into the camera battery compartment and close the battery lid.
Please follow the installation sequence when using it, otherwise some cameras will not turn on. 
(Kindly note: If the installation sequence is reversed and the camera does not turn on, just take the dummy battery out of the camera compartment and reinstall it to turn it on ).