smopoim86
Enlightened
A while back a very nice member of the forum gave out used 123a's for the cost of shipping. I was one of the lucky ones to get a box before he decided it was too much of a hassle. Anyway, that's not the point of this post.
I have a bunch of used 123a with unknown remaining capacity and such. I have sorted them by capacity readings from the ZTS tester, but that's not good enough IMO to match cells for use in a 2 cell light. So now that they are sorted by ZTS i've sorted by brand and exp date. Batteries of the same brand and exp should be close to the same total capacity(when new), right? Now I'm doing a fine remaining capacity test to match cells into pairs for use in lights.
I have set the charger to LiFe so that it will discharge to 2v, I have set the rate to .5A (seems good to match cells with). Now i'm testing each cell for 10 seconds each and matching them by voltage at the end of the 10 sec. (the voltage seems to pretty well level off by 10 sec)
Does this seem like a fairly good way of matching pairs of used batteries?
They are matched by brand, exp date, and voltage under a set load.
Seems they should be safe to use in pairs after such thorough matching. Please correct me if i'm wrong.
~Daniel
I have a bunch of used 123a with unknown remaining capacity and such. I have sorted them by capacity readings from the ZTS tester, but that's not good enough IMO to match cells for use in a 2 cell light. So now that they are sorted by ZTS i've sorted by brand and exp date. Batteries of the same brand and exp should be close to the same total capacity(when new), right? Now I'm doing a fine remaining capacity test to match cells into pairs for use in lights.
I have set the charger to LiFe so that it will discharge to 2v, I have set the rate to .5A (seems good to match cells with). Now i'm testing each cell for 10 seconds each and matching them by voltage at the end of the 10 sec. (the voltage seems to pretty well level off by 10 sec)
Does this seem like a fairly good way of matching pairs of used batteries?
They are matched by brand, exp date, and voltage under a set load.
Seems they should be safe to use in pairs after such thorough matching. Please correct me if i'm wrong.
~Daniel
