I'm certainly in the minority, I tend to push the limits pretty far so take that into consideration. All of my
vaping use is at very low resistance and for the most part I tend to run
batteries down to ~3.3-3.4V though depending on the day and where I am I do not have a problem running them to cutoff voltage. That said, the lowest I've ever put a battery on the charger at was 2.7V and that was a pretty tired 25R with many charge cycles on it and that actually never ended up reaching 4.2V with a 1.0A charge so I discarded that cell entirely. Numerous times I've put fairly new 25R's on my charger and had them read 2.9V and 3.0V, and those
batteries are still happily working in my rotation with no noticeable weakness or loss of life. For what it's worth, the only battery I use is the blue Samsung 25R2.
