Use a 3D printer to print the following model;
Notice: This model is printed with transparent PLA plastic.

Download the 3D printing document.

Place the charging module in to the printed model to see if it fits. Do not permanently fix it at this stage, we might need to make adjustments later.

Use glue such as epoxy or CA to cement the two parts of the model together.

Use a soldering iron to solder the battery circuit together. Pay attention to the positive and negative terminals.

Use sandpaper to smooth the case surface, and then apply paint to make it look good.

On this model the eye area has been left unpainted so that the eyes light up when it is charging. This has been achieved using masking tape to cover the parts when painting, and afterwards the tape has been removed.

Put the battery into the casing

Fix the charging board in to the case with glue

It’s done! Now you have a personalized portable battery charger (I will make more designs in the future to share, please follow our updates

Do you know how to use 3D printing technology to make your own power bank now?