Good and inexpensive protected 18650 battery with 3400 mAh

=== ====== Update April 2015
My review is from the black / silver 18650 Flattop battery with 3400 mAh of ThruNite. They are now no longer available!
They were replaced by new red / white batteries with increased positive, offered both with a capacity of 3200 mAh and 3400 mAh.
The batteries with the capacity of 3400 mAh should no longer have the quality of the old black. The 3200 mAh battery should have better values ​​and be recommended because of the good price.

========== Review from February 2014 ==============
ThruNite here offers good and inexpensive protected 18650 battery with 3400 mAh, which are Amazon shipping.

They came well packaged and on time. They were summoned to about 3.7 volts, and could be recharged easily.

It is flat top batteries, ie the positive terminal they are flat, so they can not be used in all flashlights. Until now offers ThruNite on Amazon at any 18650 batteries with 3400 mAh and increased positive.
Also note that these batteries have a slightly larger diameter, about 18.6 mm and therefore do not fit in flashlights whose battery tube has a small diameter, eg Zebralight SC600 II L2.

With ThruNite or Fenix ​​(PD32 and TK75) lamps there is no problem with these batteries.