LiPo Battery Pack, Micro USB, Rechargeable

This is a LiPo recharge pack I made to power my fume extractor.
http://www.thingiverse.com/thing:69729

Components:
1 - Printed box
2 - Printed snap fit lid
3 - LiPo charge board - TP4056
4 - LiPo Battery
5 - Buck step up to 18V to drive fan at high speed - MT3608

OnShape Design Files:

https://cad.onshape.com/documents/a3b71386d0d3ed8a9002bed9/w/df55292b11f0a3e192ec9f5d/e/e374469fc208d22741a37644

Component Links:

https://www.aliexpress.com/item/Hot-Sale-1pcs-TP4056-1A-Lipo-Battery-Charging-Board-Charger-Module-Lithium-Battery-DIY-Mini-USB/32373274284.html?spm=2114.13010608.0.0.0tx8WW

https://www.aliexpress.com/item/Bluelans-High-Quality-3-7V-600mAh-25C-Lipo-Battery-Part-for-WLtoys-V931-SYMA-X5C-Quadcopter/32691240889.html?spm=2114.13010608.0.0.ivkigZ

https://www.aliexpress.com/item/1pcs-MT3608-2A-Max-DC-DC-Step-Up-Power-Module-Booster-Power-Module-For-Arduino/32612743227.html?spm=2114.13010608.0.0.H4KhtR