From 6600mAh around 8 hours, you will receive the replacement battery provided by Caameron Sino anyway battery power. Now I have not checked at what applications is how much power, so watch how many hours of movies, for writing or Standby (who does that?). But now I have not gained the impression that there are so big differences. All I know is that I again had to train for several hours not a problem with a weak battery and also on longer journeys and return journeys. The battery pack is unfortunately only available in black, which of course some "rustic" look at an otherwise white EeePC, He is of course much thicker than the standard battery, with the result that the computer is heavier overall and also increased slightly roundabout way stands. But this is all more powerful batteries that. Clear: small battery = small achievement! Large battery capacity = large! No reason to get excited there and to complain about the size. In a Porsche you also do not get as much pure as in a station wagon and which in a combination reinpasst you do not get clean in a Porsche, so why complain about the fact that the combination is greater than a Prosche? It can not be helped! Do you have to come to terms with.
Me personally disturbs the somewhat greater weight not, because otherwise I two smaller batteries would have to have, what comes to the same thing in weight or is even a little harder for the performance. Mir is the color even more not so important. Clear: it had the battery in cream or white, where I'd rather have it in color, but really did not matter to me. Important to me was the performance, the price and that it is working and not immediately breaks. I have now the battery for several months in continuous use and so far he runs, he invites quite fast and a drop in performance, I could not watch. So I would Recommend it with a clear conscience. If only I had bought this same replacement battery instead of the first, which is nearly unused in a few weeks break! ... (> _