By the manufacturer! ordained for His flashlights ...

After watching the Fenix- high LED flashlight me - had a new version TK15 including NiteCore Intellicharge i2 Charger for Li-Ion, NiMH and NiCd batteries and two EagleTec Consumer Batteries (3.7V) gained, I came unfortunately to problems. Because the normal 18650 battery with 3.7V voltage, unfortunately can cause problems with the Fenix ​​TK15 (New Version). As I mentioned in the review on the flashlight, Fenix ​​puts on a special voltage of 3.6V and all commercially available batteries have a voltage of 3.7V. Fenix ​​describes the use of commercially available batteries 18650 with Cautious (Dangerous). Does express the whole in the form of flickering in the brightest light level and subsequent downshift to a weaker light level.

Since I wanted to make any experiments to this problem, I sent back the EagleTec batteries and then ordered directly the original Fenix ​​batteries.

The batteries are individually packed in a blister, supplied. The first thing that struck me personally, are the unusual PLUS and negative poles. Here I have the battery in the wrong direction first plugged into the charger. The NiteCore charger has recognized that the happiness and indicates this with three simultaneously flashing LEDs. The advantage of these different "designed" Plus and minus is certainly the seat in the torch. Fenix ​​uses two springs that hold the battery / pinch sitting very well with these batteries. Fenix ​​designed the Plus pole and the minus pole smooth with a circular elevation.

For everyone's safety, these batteries are provided with a protection against deep discharge, overcharge and deep discharge. Since it is lithium ion batteries should if possible have recourse only to protected cells. It refers to the lithium technology for batteries as a very reactive, ie in overcharging the batteries begin to outgas to swell and to be working last but not least in flames.

Said flickering joined the Fenix ​​batteries (in conjunction with the new TK15) no longer occurs. The burn time with these batteries is, according to the luminosity fabulously. Between three and five hours to keep the batteries (mainly light and stage 3 turbo, from time to time Strobo) by.

In summary, the battery makes a high quality impression and, in liaison with the TK15 (New Version) excellent services. However, the price is high side here ziehmlich. Those looking for something and compares will get at this price (24 euros with shipping) two batteries!

Finally, however, I must mention that I am truly disappointed by Fenix ​​and its product policy. Here the manufacturer binds the customer with its special voltage of 3.6V, at its own batteries. Why only four stars. But even worse, when attention is drawn to this fact only in the operating instructions of the flashlight is. More can be found on the product page and my product review of the Fenix ​​TK15 (New Version) here on Amazon.com

Until then, best regards from the Taunus