DIY Power Bank Shell – 4x 21700 Batteries, 100W Two-Way PD Fast Charging, Dual USB-C + USB-A, LED Display, 20000mAh, ABS-PVC, Grey/Black – Soldering Required

A DIY power bank shell kit by VIKEFON for 4 x 21700 batteries (not included, soldering required), with 100W two-way PD fast charging, dual USB-C and USB-A outputs, a real-time LED power display, ABS-PVC body in Grey or Black, measuring 153x55x34mm — batteries must be connected in series and soldered to the motherboard before use. Includes the case and motherboard only; batteries and charging cable are not included.