Unfortunately I received faulty goods

The fed me sent battery was manufactured 02/2012, is therefore almost 3 years old, significantly older than the battery, I really wanted to replace in my Iphone. Moreover, adhesive residues are present on the battery. So there is clearly a used battery from a cannibalized (?) Smartphone.
I think that is a hammer, because you would have to point to that fact in the application of the product!
A case for the (special) waste.

The customer service of suppliers, however, is beyond any doubt: I got to the complaint sent to another battery - from 12/2013, ie nearly 2 years younger. However, this appeared not factory from visual impression yet of the package here. Nevertheless, he was installed. Unfortunately, it turned out that there is an internal error on this battery. - The phone went on the installation and connection of this battery's constantly automatically up and down in minutes cycle, even though the battery was normal load..

Again set to work and built the old battery. So the iPhone works (albeit not very long because now lack of capacity of the battery) properly again.

However, the supplier responded again absolutely accommodating and refunded the purchase price.

Certainly I had with these two supplied battery simply "bad luck", because I can not imagine that this quality is representative of all deliveries from this dealer me.

From service.our he deserves 5 stars - if not for the quality of what specifically I received.

In any case, a purchase there is no financial risk - So. .ausprobieren!