Are you also checking IR before you do the charging??
Yes.
How ever i do it with a:"french swing", meaning:
I check the ir with my yr1035 everything above 65 is away.
But there are as i call them: machine cells, used in power tool and ebike, those have a higher ir
those machine cells i keep up to 70 ish.
But my overall testing is changed a bit sinds i started on this site, but it was an
excellent learning curve, in the beginning.
Many thanks to some wonderful and respected members!
I suggest (basically mandatory) for beginners to do the same.
I think i will make a update topic on how I test them now.(atm busy with a batch anyway
).
Watch out for those green ones with the black insulator rings. They are the infamous Sony GR series that had oddly high IR
Those are one of the cells i call machine cells, they can deliver a higher output.(c rate)
I find them a lot in Hilti packs.
As long as they dont self discharge i dont have any problems with them.
Incl some icr and inr if i remember correctly have high ir
Same goes for those red sanyo's
My cell counter is about hitting the 25.000.....