Theory becomes fact.

A project log for Minimalist Li-Ion Discharger/Capacity meter.

What you need to grade your scavenged cells for building balanced packs.

Daren SchwenkeDaren Schwenke 02/08/2019 at 21:230 Comments

I inadvertently confirmed today that if you plug in a cell backwards you indeed do need to buy yourself a new Nano.  :)   Still works, but voltage calibration is way off and seems to bleed between channels.  I messed up the ADC for sure.

In other news, I built a 10 slot 1A charger so I can charge the cells now at least as fast as I can discharge them.  Looks good and works well, but two of my charger modules were DOA so that is waiting to become a Project for now.


Replaced the Nano.  Everything else survived.

Also got the replacement USB charger modules in today, and put them in.  Cell charger project complete.