#160 40 Cent Do-It-Yourself Li-Ion Protectors for 18650 Cells (Tutorial) and how they work

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Added 7 years ago by

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Li-Ion batteries are very useful, but dangerous products, if we do not pay attention.
I will show you a simple method to protect your existing 18650 Li-Ion batteries. And all for 40 cents!
We will build protectors which:
- Interrupt charging if the cell voltage is above about 4.2 volts
- Interrupt discharging if the cell voltage is below about 2.5 volts
- Limit the maximum current to a few amperes
- I show you in detail how you can integrate protection boards in the battery itself

Link:
Battery protector kit:

Supporting Material and Blog Page:
Github:
If you want to support the channel and buy from Banggood use this link to start your shopping: (no additional charges for you)
Official Wemos Store:

Please do not try to Email me or invite me on LinkedIn. These communication channels are reserved for my main job