Lithium Battery Utility Board

I use lithium batteries (mostly in form of the well known 18650 cells) quite a lot. For charging them, I used to use the TP4056 boards with protection, which are available from Ebay for about $0.5/piece. Then I utilized a separate boost converter. But a while ago, I saw a nice video from GreatScott ...
By: MartinD_CZ

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