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.
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)
Note:
1. Transition: 1cm=10mm=0.39inch
2. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.
3. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!
Package Includes:
1 PC x Charging Case
Q&A:
1. Q:Does this product include accessories required for welding?
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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?
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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?
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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?
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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.