What is the 18650 optimal long life voltage range?

[Offroader]

Lipo was 4.1 to 3.65 volts.

I was wondering what is a good range for longer life with the new 18650 cells, as these I believe can be run at a lower voltage more safely. I couldn't find any hard information about 18650's.

 

[Voltron]

Well, 18650 is a size of battery, did you have a particular chemistry you were looking for info on, I.e. lifepo4 or NMC or something like that?

 

[Offroader]

Well, 18650 is a size of battery, did you have a particular chemistry you were looking for info on, I.e. lifepo4 or NMC or something like that?

Good point, the type that I am interested in using are ICR or Li cobalt oxide.

Or better yet I'm leaning towards the Sanyo NCR18650GA and can't actually find what chemistry it is.

 

[Hillhater]

I assume you have read the thread on testing cycle life for the Samsung 25R ? ...
https://endless-sphere.com/forums/viewtopic.php?f=14&t=73883
It shows the capacity loss/cycle life using a range of 3.1--4.15 volts, which covers 80+ % of cell capacity.

 

[Offroader]

I assume you have read the thread on testing cycle life for the Samsung 25R ? ...
https://endless-sphere.com/forums/viewtopic.php?f=14&t=73883
It shows the capacity loss/cycle life using a range of 3.1--4.15 volts, which covers 80+ % of cell capacity.

Thanks, this post does answer my questions.