Quality is HP original ... so very good. But is not the same battery in my laptop as I have ... although the HP Battery description is the same. Under the designation MU06 I have a HP 4910 mAh battery, this HP MU06 here has 4300 mAh. This does, of course, over the term of ... Please cite the mAh in the description! in 4900 there were approximately 3 hours and with the 4300 Unfortunately, there are only about 2 hours.