Retrofalg GPI Case - LiPo battery adapter (no mod version)

thingiverse

First off, here's the third design I've created, and I hope you'll enjoy it. There are holes on both sides of the frame where you can insert metal plates or simply use a piece of desolder wick to establish contact with the GPI's + and - terminals. Next, solder one wire to the bottom spring, which touches the "OUT-" terminal on the printed circuit board, while connecting the other wire to the "OUT+" terminal on the PCB. Ensure that B+ is connected to the positive battery wire (red) and B- is attached to the negative battery wire (black). Don't forget to use electrical tape to protect your solder connections from short circuits - take a look at the pictures for reference. This design was specifically created for Type-c USB 5 V 1A 18650 TP4056 printed circuit boards.