After some Rechereche I found out that here the charger plays a central role. And I became aware of the IVT AV 4 or the BC700 and even discovered the better successor model BC-4000 Pro. This cost around 30 and after some search in Amazon I even found an offer to the BC-4000 Pro including 4 St. Eneloop Pro for only about 38 !! Now I have one of the most modern chargers on the market and have more Eneloop Pro for only the equivalent of about 8 get :-)
Only now show the Eneloop Pro what you really have it and I'm with the battery now very satisfied.
Nevertheless, I forgive only one star because I think the manufacturer would have to have to specify in the description that a modern Charger is necessary here.
So who still does not have a BC-4000 Pro or IVT AV 4 should check before you buy whether the respective charger the charge voltage has been optimized on the Eneloop Pro or equal to an offer access with charger incl. Batteries.