I don't know the answer. But I had the same thing happen on a Thinkpad. A bit annoying, but I decided for the $$ saved I'd live with it. But then the battery died way faster then the original, and I replaced it with a Lenovo. Wasn't worth it. That wasn't my only bad experience with cheap batteries. Seems you get what you pay for, with batteries. But I do try to find the genuine ones on eekBay for a better price. It's often not easy to tell on those auctions whether it's an original one, or a "genuine" from another producer. Good luck!