UPDATE (09/02/2015): after almost 2 years of battery in a very good condition. Not worse than the original.
After about 3 years of the original battery has collapsed from Medion. We have interested in concerns about the lottery game in allegedly identical replacement batteries for an original spare part from Medion. But found the price of a little over 100 EUR incl. Shipping something highly. That's why we bought this "Peltec" battery of Net-Electronics. And he is doing his job absolutely satisfactory. Should he not also hold 3 years - just like the original - that is tolerable for the price.
Sorry, we have no information about the life at the moment. And we have no maturity-looking statements within the new state. In addition, the notebook is used for irregular and too different. However, the battery life seems to be OK. Super long battery runtimes are in our use but also not important.
Due to the suspect very good price-performance ratio: 5 stars.