Four months after the purchase of this battery it takes 20 minutes !!! Unacceptable !!! The caught at first sight attractive, proves dearly paid for an article in a deplorable quality. I have to leave my computer on AC power as even displaying a battery level more than 50% (which never goes beyond 95!) The computer will turn off after 20 minutes the very most, I lost some data because of this !!! I do not recommend it!