External Battery very usefull

Here are my external battery files. It has three advantages:
- when you put it in your bag, and charge your phone at the same time, the shape of the battery means that the wires will not be twisted or damaged;
- you can change the LiPo battery rather than having to wait for the battery to be recharged;
- you can put two LiPo batteries, increasing the thickness by only 1 cm.

You will not need any support or post-printing work other than to stick the module shown in photo n°2 in its location.

Enjoy