After two and a half years of the original battery was definitely at the end. Now have been in the day once again be loaded hissing, so I needed a new. Looked briefly at Amazon and compared the technical data it has been ordered here. The value for money is unbeatable and the battery lasts for the right Erstladeprozedur for approximately 2 Days - excellent. Now, about 5 months after the purchase, he hands me the normal daily business with primarily phone and from time to time on the web look up something, still one and a half days. From me there for 5 star
