Perfectly adapted to the HP laptop battery. Like any battery, observe the instructions for use for it offers optimal use. After several charge / full discharge, the battery gives full satisfaction. Too bad the manual is in English but good with the internet you can quickly translate. Small note, the capacity of this battery is the ability of HP laptop batteries equipped with Intel (4400mAh). So she will discharge slightly faster than the original (5100mAh) if you have an AMD processor that are more energy efficient (in my case but the difference is really small). Anyway for the price, about 2 times a month expensive original HP, it's really a very good article. See in time ...