03-11-2018 10:34 AM
In response to customer reports of unexpected issues with battery performance on Z500 and Z510 laptops, Lenovo is making a battery firmware update available via download from the Lenovo Forums.
Please note a step-by-step procedure for upgrading the firmware is included in the .zip file, found in the "ReadMe" folder.
The battery firmware update can be downloaded here: https://download.lenovo.com/lenovo/content/sm/z500_z510_battery_firmware_update.zip
Step 4: In “Check for battery”, select “Next” to have the system check for new firmware ---> "There are no attached battaries that require a firmware update". What should I do?