22.5W DIY Battery Charger Case Transparent PD Fast Charging Case Welding For 8PCS 18650 Polymer 20000mAh Battery Charging Box

it is only battery case, you need to put battery in it by yourself, battery is not included
Features:
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/5.7x1.6x2.09in
Input: DC5V / 2.1A/20W
Output: 5V/2.1A/PD22.5W
Quantity: 1 PC (Not includes the battery and charging cable)
Package Includes:
1 PC x Charging Case
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.
Q&A
1.Q:Does this product include accessories required for welding?
A:The package only includes some accessories such as the motherboard and casing as shown in the main picture,
and the wires and other accessories required for welding are not included.
2.Q:What type of wire is required for welding?
A: 20AWG is the most suitable.22AWG and 18AWG are also can be used.
3.Q:What if there is no response when clicking the button after the battery is soldered to the motherboard?
A:In some cases, the motherboard needs to be activated after welding is completed. Charge it with a charger for 3-5 seconds to activate.
4.Q:The power display of the power bank quickly dropped to 1% and can still be used. What is the reason for this?
A:This situation is because the motherboard and battery have not yet fully matched. You can fully charge the power bank and then exhaust the battery inside it. Cycle this process 3-5 times, and the power display of the power bank will return to normal.