Z510 - fake battery percentage

I bought Lenovo Ideapd Z510 about 1.5 years. Installed 10 Windows via Windows update 3 months ago. My laptop was working fine until now. 1 week ago I just changed a document and suddenly portable got off without any notification. He did not stop rather he turns off unexpectedly. Shown before setting power off battery percentage was 70%. I tried to turn it on but also used the recovery key, but nothing helped. I plugged in the charger and the charge indicator noticed was RED, which means the battery is low. I turned on the laptop and now the battery percentage shown was 0. Self decided to execute gauge reset it using Lenovo Energy Manager, which in turn will calibrate the battery.

After two days I though that he's fine now. But I have PES on my laptop for 2 hours and the specified battery life was still 94%. I got that wrong info is displayed. I generated enery powercfg-energy command prompt report. Once I opened the report that I was surprised to see tha last full Charge value is greater than the design capacity, which is quite bizarre. Now, it takes two or three hours to charge completely from 99% to 100%. And even after lsitening to music, surf the Web and edit several documents at the same time battery percentage shown never becomes less than 94% and thatbtoo it takes 2 hours to go from 100% to 96 or 94%.

Please help me. I want to know what it related equipment and in particular the battery or with the operating system? Note that I did not install any new application or a program in the past 5 months. Thanks in advance.

Mod edit: System model added to the front of the subject line to improve visibility / clarity.

In response to customer relationships of unexpected problems with the performance of the batteries portable Z500 and Z510, Lenovo made an update of the firmware of battery available via download on the Lenovo Forums.

This battery firmware is intended to solve unexpected load following symptoms when a Z500 and Z510 mobile phone is turned on:

  • Battery is dead

  • Battery is not detected

  • Battery is detected and charged 100%, but when the power is removed, the laptop turns off immediately

  • When the battery is fully charged and the AC power is removed, the battery level falls considerably less than 10 minutes

Please note a procedure step by step for the upgrade of the firmware is included in the .zip file, found in the file "ReadMe".

The battery firmware update can be downloaded here: https://download.lenovo.com/lenovo/content/sm/z500_z510_battery_firmware_update.zip

Thank you

Tags: Lenovo Notebooks

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