PD 22.5W DIY Battery Charger Case Fast Charging Case for 8 battery 18650 Li-ion 20000mAh Battery Charging Power Bank Box Grey-Without Battery

A DIY power back case, can charge 8pcs 18650 batteries ( Batteries need to be welded and not included)
Support full protocol fast charging 22.5W, two-way PD fast charging 20W.
22.5W output supports PD QC- AFC SCP- multi-protocol fast charging for laptop phone universal
You can take it on the plane without declaration, safe and reliable
Transparent body, imported high-quality LED screen can check the remaining power in real-time
Specifications:
Item:for 8pcs 18650 Battery Charger Box
Capacity:20000mAh
Material: ABS-PVC
Color: Gray/Yellow/Blue
Size: approx 145x41x53MM/5.7×1.6×2.09in
Input: DC5V / 2.1A/20W
Output: 5V/2.1A/PD22.5W
Quantity: 1 PC (Not includes the battery and charging cable)
The battery needs to be connected in parallel. Connect the positive pole of the battery to the ;B;+end on the back of the motherboard, and the negative pole of the battery to the ;B -; end on the back of the motherboard.
After welding, it is necessary to connect the power supply to charge the power bank and activate the power bank. Then it can be used normally.