Can not agree with the other reviews. Battery life was perfectly fine. The battery has kept tidy with me (I have now no stopwatch tuned maintained, but significantly longer than 4 hours ...). Have the battery now already 2-3 years and after a very intensive use, he now holds no more h. What annoys me is that to handle very sloppy with NEM battery if it is new / powerful. If I had paid attention to battery maintenance (if possible only to 80% charge; PSU agree when battery is full, take out the battery in stationary operation) would keep this battery intended for twice as long. Now, a battery must be disposed of again ... = (
Conclusion: Am satisfied with the battery (been). Buy recommendation.
PS. When I have the time to buy, because the part still cost 15-20 more. Hab surprised that it costs only 30 including postage.
