When LiIon battery is full the charger will charge with 0.6mA.
Is the after termination charge considered a safe rate to leave the battery on for a day or two if I forget?
So the if I read correctly at no time did the temperature of the device nor the batteries get dangerously hot?
No reason. It's just a problem I have sometimes had with other brand chargers. I don't like it to feel "hot" to my hands. Those numbers looked a little high to me but I didn't bother to do C to F conversion.Why would they do that?
I bought one of these to charge my keeppower protected 26650. I charged them at 2.0 and they charged up pretty quick. Just to be 100% sure, if charging 18650 I should charge at 1 amp, and charing 14500 I should charge at .5, right? Just wanna be sure before I do it.
Thanks
Correct. With some 18650 cells you can charge at 2A, but it will usual cost a little bit of lifetime. You can sometimes find maximum charge current listed in my reviews or else you need to find some datasheets.
In extreme cases doubling the charge rate can reduce life by a factor of 10 or more
Can you list any 18650 cells rated for 2A charge (or more) that will only last 30 to 50 cycles at 2A charge current?
There have been numerous studies of accelerated degradation caused by high rate discharges, some of which have been discussed here in the past, e.g. this NASA study Performance and Safety Testing of Panasonic 2.9 Ah Li-ion NCR 18650 Cells by Jon S. Read. The same degradation mechanism holds for all current Li-ion cells, but the exact results depend heavily on the specific parameters.
I take that as a no.
In extreme cases doubling the charge rate can reduce life by a factor of 10 or more
I suggest that in addition to reading studies, we should refrain from making definitive statements if the only thing we can back them up with is "intuition".
The scientific studies are not based on "intuition".
In extreme cases doubling the charge rate can reduce life by a factor of 10 or more
So, once again, can you substantiate your claim in any way?
Try reading the NASA study I linked above. And chase links to that to find related results.
I read that study long time ago. It is very interesting, but It contains NOTHING to substantiate your claim.
Please provide exact quote from the study which you think supports your claim. Or is it too much to ask?
Incorrect. The graphs on pp. 10 and 11 illustrate the qualitative effects I described above. Many other studies show analogous results.