11-21-2015 02:34 AM - last edited on 11-21-2015 07:04 AM by Majestic
I have purchased Lenovo Ideapd Z510 about 1.5 years ago. Installed Windows 10 via Windows update 3 months ago. My laptop was working fine until now. 1 week ago I was editing some document and suddenly laptop got switched off without any notification. It did not shut down rather it turned off unexpectedly. Battery percentage shown before tuning off was 70%. I tried to power it ON as well as used Recovery Key, but nothing helped. I plugged in the charger and noticed charge indicator was RED, which means battery is low. I turned on the laptop again and now battery percentage shown was 0. SoI decided to perform Gauge Reset using Lenovo Energy Manager which in turn will calibrate the battery.
After two days I though it is fine now. But I kep on my laptop for 2 hours and battery life shown was still 94%. I understood that wrong info is being displayed. I generated enery report from command prompt by powercfg -energy. Once I opened the report I was surprised to see tha Last Full Charge value is greater than Design Capacity, which is absolutely weird. Now it takes two or three hours to charge completely from 99% to 100%. And even after lsitening to music, surfing web and editing multiple documents at once battery percent shown never goes below 94% and thatbtoo it takes more about 2 hours to go from 100% to 96 or 94%.
Please help me. I want to know it related to hardware and particularly the battery or with the OS? Note that I have not installed any new application or program in past 5 months. Thanks in advance.
Mod's Edit: System model added to front of Subject line to improve visibility / clarity.
Solved! Go to Solution.
11-22-2015 10:24 AM
11-22-2015 10:41 AM
01-15-2016 10:38 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.
This battery firmware is intended to resolve the following unexpected charging symptoms when a Z500 or Z510 laptop is powered on:
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
01-19-2016 01:54 AM