21700 Battery DIY Box Fast Charging for 4PCS 21700
Features: A DIY power back , can charge 4pcs 21700 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- SCP- multi-protocol fast charging for laptop phone universal
You can on the plane without , safe and reliable
Transparent body, imported high-quality LED screen can check the remaining power in real-time

Specifications: Item:for 4pcs 21700 Battery Box
Material: ABS-PVC
Color: Gray/Golden/ Silver
Size: approx 154x65x29MM
Input: 5V 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

note: 1.: 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!