Which cut-off voltage for 18650 and 26650?

[marquee]

With Escribe I can adjust a great number of settings and parameters of my dna mods. One of the settings is the cut-off voltage. In my DNA75 mod, which I use with 26650 cells, I set it at 3V, but that seems to cut the engine off too drastically. My question is more generally: what is a sound cut-off voltage for 18650 cells and for 26650 cells?

Thanks for your replies folks!

 

[DaveP]

If you are talking about the voltage at which the mod declares "replace battery", the popular setting for most mods is 3.2v. According to Mooch (our local battery expert), you can go down to 2.9v without damaging a lithium battery.

Personally, I'm good with a 3.2v cut off. I frequently replace my batteries before the mod declares the battery should be charged. Doing that takes some charge stress off the battery and lengthens effective life.

Look at Mooch's battery tests and watch how the graph suddenly drops off at the low end. When you approach that level there's no point in extending cutoff into that area because the mod is working over time to maintain your vape voltage setting from a lower battery level.

 

[sonicbomb]

Like DaveP said.
This applies equally to 18650s and 26650s as they share the same chemistry, but the 26650 has a higher mAh capacity and a slightly lower amp limit. I personally swap out my cells at around 3.6v as this puts less stress on them.