Here is a simple procedure that allows you to calibrate the battery of a laptop PC on Windows 7 and 8
Over time and after many cycles of charge and discharge, it may happen that the laptop battery (such as a notebook, a netbook or a laptop), you begin to not last like they used to. To try to return to its initial state, you can groped to calibrate the battery of the laptop or performing a particular procedure that is used to “clear the memory” of the battery in order to improve durability.
How to calibrate the battery of a laptop PC on Windows
- The first thing to do is charge the laptop battery to the maximum (at this stage you can safely use your computer as you usually do);
- After reaching 100% charge (or the maximum that the battery can reach) still leaves the power supply attached to the PC and go to the Control Panel, then System and Security, and then click Power Options. Under the combination you are using right now (which may be, for example Balanced (recommended), or High Performance Energy Saving) select Change plan settings;
- Now click on Change advanced power settings and select the item Battery Operation for Low Battery: Now select Hibernate from the drop-down menu next to the item Battery powered, and then go to the section level low battery and insert 5 % always in battery powered (if you can not select 5% select the minimum possible value but do not go below 5%). Finally, click Apply and then OK;
- Leave the battery fully charged for at least a couple of hours and only at this point you can unplug the power supply from the computer and, if you wish, continue to use it. Having put the value of 5%, the computer will continue to operate normally until this value is reached, after which it will switch itself off ibernerà the operating system or save all open documents and programs on your hard drive and automatically turn off the laptop;
- Once you turn off the computer, leave it in this state for at least 5 hours and no load;
- Once spent 5 hours (but also something more), you can reconnect the power supply to the computer for it to reach 100% charge. At this stage, if you wish, you can safely use your computer as you usually do, even if it would be better to charge the battery with the computer off.
After calibrating the battery, you should restore all settings on the computer just as they were before calibration: then go back into the Control Panel, then System and Security, and then click Power Options. Under the combination you are using right now select Change plan settings and then click Restore default settings for this combination and in the window that opens you answer Yes.
Although the procedure to calibrate the battery of a laptop PC features Windows 7, 8 and 8.1 on Windows Vista, some items are slightly different but the procedure is always this, even if it is called hybrid sleep. In addition, although it does wonders, if this procedure is performed on a regular basis (ie every 30 cycles of charge and discharge), should lead to a “rejuvenation” of the battery and accordingly to improve its autonomy.