IS there something wrong with the TR-001 model? I have had mine for a couple of months and am pretty happy with it. I know there is probably better out there, but is it still decent?
I just receive from a friend a old laptop battery and I find 6 sony green 18650 in good shape and good voltage… I find the mha capacity in this thread…
By the way, this is a BIG 18650 collection… Congrats…
I've found that a good test for laptop cells is to test the voltage during salvage. Anything under 2.8 gets gone. Those that make the cut get charged to 4.20 and then set aside for 2 weeks. If they don't hold a charge when measured at 2 weeks out, they go in the junk bucket with those below 2.8. Generally, I find that if they hold 4.2-4.1 for two weeks they will likely be usable in single cell lights. I'll occasionally put a few on the hobby charger and see what the capacity is, but I have found that generally the ability to hold a charge is a pretty good predictor of which cells will also still hold most of their rated capacity.
I've salvaged a bunch of 18650's from dead laptop packs. In every single case an AW or TF flame out performs them hands down. Salvaged cells are good in a pinch, but do yourself a favor and invest in some good protected cells.
Just keep in mind that production year 2008 is Q for Sony and M for Sanyo, then look on your cell and count backwards or forward to your letter while each letter is a year.