My laptop suddenly started showing a cross symbol on the battery icon and Windows told me to replace it, but battery life is still stable. How do I remove the warning so that the icon returns back to normal?
Toshiba Satellite L640
The thread Windows 7 and the battery error "consider replacing your battery" on Microsoft TechNet is eleven pages long and filled with angry customers.
This issue and solution given here is for hp laptops may help sometimes to your model also
The "Consider replacing your battery" message is displayed when the Last Full Charge Capacity is less than 40% of the reported battery Design Capacity. Both the Last Full Charge Capacity and the reported battery Design Capacity are retrieved by Windows from the system ACPI firmware (BIOS).
To obtain this update, visit this Microsoft Windows Update website