popular models by KRALYN3D —

KRALYN3D

Ultimate 18650 Power Bank with Infinitely Expandable Capacity

KRALYN3D

The best DIY USB PD Power bank 3D print files

KRALYN3D

DIY Mini Variable Lab Bench Power Supply

KRALYN3D

DIY 222Wh Powerbank

KRALYN3D

DIY 100W Flashlight