Ένα ενδιαφέρον άρθρο που βρήκα για της Panasonic NCR 18650 2900mAh 3.7v και της Panasonic NCR 18650A 3100mAh 3.7v

From the datasheets, I found a couple of things to be very interesting between these two cells. I have seen the 3100 touted as the latest, greatest thing; but all may not be quite as it appears on the surface, upon a closer look at the datasheets:
Typical Charge Characteristics:2900 mAh NCR-18650:
3100 mAh NCR-18650A:
What I found interesting here is the different C rate they have used in rating the cells. For the 2900 they used a 0.7C (of nominal 2750mAh) rate, 1925mAh for charge, whereas for the 3100 they used a 0.3C (of nominal 2950mAh) rate, 885mA.
Typical Discharge Characteristics:2900 mAh NCR-18650:
3100 mAh NCR-18650A:
Here I found the comparison interesting, expecially at the 2C rate. The 3100 stays above 2.5V for longer at 2C than at 0.2C!
Typical Life Characteristics:2900 mAh NCR-18650:
3100 mAh NCR-18650A:
In the Life chart, look carefully at the first 50 or so cycles with the 3100. Look how quickly it drops to under 3000mAh capacity, in just a few cycles. After only a few cycles, any advantage it had over the 2900 cell disappears.
So I'm not sure the 3100mAh NCR-18650A is all it's cracked up to be, or worth spending extra dollars on over and above the NCR-18650.