Very disappointed in this, especially after having read eulogies that were made in previous comments. The two owners of the EeePC 904HD and 1000H, all equipped as standard with 6600mAh batteries, saw an improvement of autonomy (according to the test on the internet varies between 4:45 ET 5:30). When I decided to order this battery was to replace that of a 1000HE whose power was 8700mAh and autonomy of nearly 9 to the origin and today, nearly five years later, a little less than 5 hours of video playback. This new battery, with 7200mAh of power, had to be able to provide a range of at least 6:30 in the same conditions. It has never exceeded 3:15 !!! Either this battery was defective or it enjoyed a labeling error because for me it was not to exceed 4000mAh but never indicated amperage. Therefore, it does not even deserve a star and it is only for the quality of the package I agree to give him.