How to Make the Ultimate 18650 Power Bank with Infinitely Expandable Capacity

In this video I will show you the ultimate solution to power on the go. This DIY power bank features a removable battery pack, which can be easily replaced, giving this power bank unlimited capacity as long as you have enough cells. The cost of the row components of this power bank is around 60 dollars, which is two times cheaper than anything commercially equivalent.

WARNING: Do everything at your own risk, lithium batteries can catch fire or explode if mishandled. This power bank requires a more than a basic understanding of electronic to complete.

Schematics and the script:
3D print and CAD files:
If you need a 3D printer, here is a really good one for only $220(Ender 3):

Soldering iron TS-100, it is the best value soldering iron. There are dozens of positive reviews on youtube. Buy here to support the channel:

Part links: (some are affiliate)
15x 18650 battery, if you are going to buy new, I recommend these:

Or NCR18650B/BD
USB 12V quick charge:
eBay:
Amazon:
200W boost converter:
eBay:
Amazon:
12V Inverter 110V:
ebay:
Amazon:
12V inverter 220V: You might need to modify the io shield to fit the socket your country needs.

Wireless charging circuit:
eBay:
Amazon:
DC-DC step down constant current:
eBay:
Amazon:
Mini DC step down:
eBay:
Amazon:
3s BMS with balance:
eBay:
Amazon:
12v 20A mini relay:
eBay:
Amazon:
Temperature switch (4x N.C. 45 degrees & 4x N.O. 45 degrees.)
eBay:
Amazon:
Slide switches:
Amazon:
eBay:
60x10mm fan:
Amazon:
eBay:
USB C trigger:
RGB controller:
Heatsinks:
XT 60, wires, and RGB strips are salvaged from old electronics.

Music used:
There It Is by ZAYFALL
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Spite by ZAYFALL
Creative Commons — Attribution 3.0 Unported — CC BY 3.0
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Altro - Epic [NCN Release]