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Windows 7: Laptop Battery compatibility, Capacity information and calibration.

17 Jun 2017   #1

Windows 7 Home Premium x64
Laptop Battery compatibility, Capacity information and calibration.


I reaching to this forum to seek help in order to understand how the information of the battery is read through windows and lenovo software.

I have recently bought a new non oem battery for my lenovo z570. It detects a diffrent battery ID, however even if the battery is good, the power management software still says at times that there is battery wear instead of good. I have installed also Battery BAR and the software has a reading of the battery capacity.

In all this process with the battery BAR I have seen that the original OEM battery reads a capacity of 38 or 39 Wh and the non OEM has a capacity of 48 Wh. The non original is stated has 10.8 V, 48 Wh 4.1 Ah, and the non OEM is listed has 11.1 V 5200 Ah which should be arround 57 Wh. This leads me to the following questions:

Is it normal to have a under reading on the battery capacity on this software? Where does the battery capacity comes from? Is it from the integrated circuit that comes from the battery? And could there be an issue with this battery? How long of a runtime should I expect in normal use, like web browsing and office with the non oem battery? If I install a 9 cell battery will capacity update itself? Is there a way to calibrate the battery capacity to match data plate?

Tank you very much for reading and your responses in advance.

My System SpecsSystem Spec

 Laptop Battery compatibility, Capacity information and calibration.

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