The battery icon on my Acer laptop's Win7 desktop turned red and I got the above message. I seldom use it in battery mode, but after seeing the warning, I ran the battery down 20% and it recharged normally. Online, there seem to be a variety of possible reasons, including Win7 problems and............... well, the battery actually needing placement. But that's not really my question, which is: since I don't use the laptop in a mobile way at all, but as a kitchen table device, would there be any downside to just yanking the battery out until I get it sorted? (My instinctive thought to my own question is 'no, go ahead,' but my instinctive ideas about computers are not always correct. Thanks for any advice.