I have HP laptop Pvilion g6 corei3 since 2013 and till time it running smoothly and not need any repairing in this period now I think to replace the battery coz it work for me so long.and I specially recommend any one who want to purchase new laptop should be purchase HP laptop it dosnt matter any series you can purchase it not harresh you and not a weastage of time and money you can feel free to purchase this hp series