I hope this information will help someone choose AA batteries.
Alkaline: Premio (cheap alkaline) and Duracell Procell. NiMh: Eneloop 1900 mA and Eneloop 2400 mA. Primary Lithium (1.8V): Energizer Lithium and NICE Lithium.
For testing I have selected a reliable AA flashlight Klarus P1A
The “Nice” received from Fasttech, are above 1.8V (1.82-1.83V)
I have the Klarus from a year ago and I used little. But I think I’ll put in the car with a lithium inside
I got 2 packs and I just tested 4 batteries, two from each pack.
Fresh out of the box I discharged them at 1A and I got the following
Battery 1: 1770Mah
Battery 2: 1778Mah
Battery 3: 1776Mah
Battery 4: 1762Mah
Then I charged them and tested again fresh out of the charger and I got the following:
Battery 1: 1882Mah
Battery 2: 1885Mah
Battery 3: 1884Mah
Battery 4: 1883Mah
So it’s basically 1900Mah at 1A for all of them, and very little variance. They pretty much perform like the last Eneloops I got. Not sure about how they retain charge in the long term, but the “out of the box” values are really promising imho.