Thanks to the generosity of Alba Vapours, I got my hands on an Efest 3400mAh protected 18650.
At 1A constant discharge, it leaves the likes of AW and Xtar 3100mAh trailing:
Thev high discharge pcb allows a discharge current of over 5A, here is constant 5A discharge:
The Totally Wicked stated "protected" on the label, but had no protection.
I have been assured that the Torchy batteries are IMR (LiMn2O4) but the internal resistance is on the high side, although lower than any LiCo2 standard Li-Ion battery I have tested.
Actual Capacity (mAh)
Torchy 850mAh...
I have been trying out a few of these Efest batteries, and have some more sizes on the way. They look pretty good quality.
Here is a comparison of the Efest IMR 1500mAh and AW IMR 1600mAh and Sanyo Ur18650W2:
This is a great site to compare various makes and sizes of battery:
AkkuDB
It's in German, but easy to understand. An English translation is coming soon.
I bought a pair of Ultrafire 4200mAh 18650 and tested them @1A from 4.2v - 2.75v
I didn't expect them to be anywhere near the clained 4200mAh, but I wasn't expecting this:
Battery 1: 822mAh
Battery 2: 369mAh (three hundred and sixty nine, not a misprint).
Surely these are the worst batteries...
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