Uploaded June 2018 | Updated September 2026, 2 weeks ago

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How to make your own 18650 (or any lithium/li-ion) cell/battery capacity checker/tester. In this series, I design a really simple circuit and talk you through it. I walk you through every single step in both the electronics and code.

You can buy a PCB from my ebay account from here:
ebay.co.uk/itm/142818047468

In this video, I will show you me soldering a PCB!

The schematic and code will be downloadable from here:
electronicsandcode.co.uk/Video.aspx?Video_Id=MVd3F7lwWUU

For those who wish to support the channel, my Patreon account is here: patreon.com/antonycartwright