When your battery is fully charged, the system may pop up a warning message recommending that you replace the battery. This message is a battery warning that battery degradation has reached a certain level, but it cannot be ruled out that it may be a false alarm.
Microsoft has a patch to reduce the risk of error warnings. Windows 7 may display an error notification suggesting battery replacement. Additionally, a red cross battery icon will appear in the taskbar.
Workaround: To reduce the risk of this false notification, Microsoft will release an update that will soon be available through Windows Update. If Windows 7 displays this alert but you don't experience laptop battery issues while using it, then you can consider it an incorrect display notification.