The performance never corresponds with the Chinese battery under this name to the specified value. These are pure fantasy. Functioning do the batteries accordingly limited. Anyone who wants to operate as a high quality flashlight with genuine high performance, such as a Fenix PD 35 so that notices very quickly by the stage with the highest light output only for extremely short periods can be used at all. After a few seconds so bring a lamp no longer their peak performance. My advice, therefore, from the purchase. It would be nice if there were batteries with the specified performance at this price - but actually you get how to pay for it just as much - and not what is promised.
Addendum: I had 2 of these batteries, one of which is now completely failed after no more than 5 charging operations as simply dead, the other battery will last only for a very short time at all sufficient power ready and weakens after a few minutes so far from that. the lamp just yet about bringing half the light output.