Batteries with quality dispersion and loss of charge

I looked for the replica of "Troy" as a replacement for Nikon EN-EL15, because I have thus had only positive experience: easy charging in the original charger and performance in the Nikon D7000 as the original battery. No difference detected!
Unfortunately, there was the faithful "Troy" is not (more?), So I bought the Päärchen of DOT.Foto at an attractive price.
Verdict:
Housing fit and cap as original.
Easily recharge the Nikon charger.
1.9 Ah and 7.0 V are printed but questionable. While it is in operation in the D7000 does not create difficulties, but the batteries are empty faster than Troy or Nikon. And in this discipline the dot batteries are also very different, a more quickly exhausted than the others. The weaker is now also no longer loaded as long as the Nikon charger. The reports early finish. Both batteries have so far been approximately 4 times discharged and recharged.
Conclusion: 2 batteries with estimated Kapa of 130% of a Nikon or troy batteries (!). Small price. Make nothing broken. Only for short trips with the opportunity for more frequent recharging. I would not buy again, nor recommend, because the expectation of a charged battery pack is not met.