I had a genious thought. These Li-ion protection boards are about 0.14 euro,
![](https://cdn.hackaday.io/images/6010531611861912128.png)
while there are also these 0.17 euro TP4056 1A Li-ion chargers including the protection circuit, which I had still lying around.
![](https://cdn.hackaday.io/images/2006161611862071907.jpg)
So I quickly hooked it up and tested it
![](https://cdn.hackaday.io/images/7223041611862398098.jpg)
And it works well. Then I designed a new PCB and ordered from JLCPCB and soldered it.
![](https://cdn.hackaday.io/images/6224081611862493160.jpg)
And it works as expected.
Now I feel happy
Discussions
Become a Hackaday.io Member
Create an account to leave a comment. Already have an account? Log In.