Therefore I have decided for the maxe from Ansmann.
According to advertising, the batteries should be provided land and can be used directly from the blister out.
That's what I tried directly. The electronics of the telescope meltete me a battery life of over 80%! In fact, I was able to work for several nights with the batteries. This was comparable to the disposable batteries that I had previously used.
The empty battery I have in a universal charger loaded (I once bought at Lidl). Without Problems!
Unfortunately, I offer the charger no way indicate the actual performance in mAh. But the "perceived" performance corresponds to what was stated in the advertisement.
Whether the expensive maxe are useful in any application case, I doubt. In my case it was the non plus ultra.
These batteries would be for example to keep useful flashlights also for prolonged operational. Here one must be careful, however:
When using batteries in flashlights is always a danger of deep discharge! This is death for each battery (I guess that also applies to the maxe to). Reason: for example, will forget to turn off the flashlight, the lamp pulls every last bit "juice" on the battery. In the case of other electronic devices that is not the case. Here, the device switches itself off when the batteries no longer provides the operating power required.
My conclusion: Recommended batteries. Man saves here possibly the cost of a second "standby rate".