INR, IMR.. you know I meant high current batteries. ;) All these names are moot imo.
My guess is that the 15R and 20R are pretty similar, just with less capacity. That goes pretty well with your readings because the 15R sags more than the 20R.
Oh btw, the Sanyo UR18650RX might beat the crap out of all the other cells but its got a MOQ of 8 for 8$/each on alibaba..
Oh, just noticed my 1500's are marked "15M" not "15R", the 2000's are marked "20R". Does that make a difference?
Maybe? :D
I've only seen P, Q and R so far.. R being those with the highest amperage rating.
Thanks very much for the review! Frontpage’d and Sticky’d.
Ordered a couple of 20Q's, like to see how they compare with the 20R's, though they are rated at a lower amp value, 15A vs. 20A for the 20R's.
Hi Have you ever tested the above cell?
Yes - really, really close to the 20R in performance at high amps on single cell XM-L2 builds using 7135 drivers at 3.85A and higher. In some lights, I've seen no difference at all. I don't have a scientific way of comparing, but the single cell XM-L2 high amp lights will be an excellent indicator. I've gotten in a bunch of 20Q's now, latest buys from FastTech, best price of course.
No!
HJK, thanks for all you do. I often refer to your cell discharge comparator before making my purchase decisions. I just have to laugh at some of the answers people are given when asked which is the best cell to buy… thanks to you, the choice is more obvious. Please keep up the good work. A lot of people will echo my sentiments.
+1
Okay!
Ooops, was wondering if the question was to me or HKJ...
Totally agree - these posted test results have been invaluable for reference. Specially like this as a comparative reference:
http://lygte-info.dk/review/batteries2012/Common18650Summary%20UK.html
This write up on hobby chargeres is also a great, classic source of info: http://lygte-info.dk/info/HobbyChargers%20UK.html
Plus this page on chargers (and batteries): http://www.lygte-info.dk/info/indexBatteriesAndChargers%20UK.html
Thanks HKJ !
How about the Samsung INR18650-29E 2900mAh.
Is it same as this –20R version, except with higher capacity? I’m tempted to buy one of those for flashlight use…
Hhhmm, think the lower the letter, the lower the max amps rating is, but not sure if that's a definite rule. I got Samsung INR 20R, 20Q, and 15M's -- in that order I'm thinking is lowest resistance to highest from my testing in builds.
The 29E is rated for a discharge of 3C max. That's about 10A. The 20R will do 30A easily.
Hi.
Will I see any significant improvement in output if I use these batteries for my XintD X3 and Supbeam K40-L2? For lights having cells in series, do you also divide the current pulled by the number of cells?
Thanks a lot for your another excellent test review as always. I never knew there is INR 18650 & it’s from Samsung.
It’s interesting this cell’s charging time (around 131min) is a bit faster than Efest IMR 18650 (2000mAh) V1 red (around 140min).
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