Not able to change battery charge level back to 100%

How can the maximum battery charge setting be changed back to 100% from 80%?

I set it to 80% when Windows offered me that option, but I would now like to set it back to 100%.

Thank you.




References to Vista also apply to Windows 7.

Check with System maker's Support, their on-line documentation and drivers, and their forums (if any) for known issues. Some maker's have issued BIOS and other updates to help with battery problems.


Other information that might help :

Control Panel - Power Options - Power Plans - Change plan Settings - check the Advanced Settings for drain and usage settings (this is how much to be used and not how much or how long to charge).

Actually what causes a lot of wear on a battery is draining it too low repeatedly. With today's systems over-charging is not an issue.

Here are some tips to help and troubleshoot battery related issues.

Old battery? Unplug power to computer - remove battery and clean the contacts with a pencil eraser (do not use this if your battery has thin slots - just clean the knife edges that fit into them and be careful). Batteries do wear out if old, or it could be a problem with the computer. Check with the support of the system maker and many of them have on-line forums.

Newer type Litium-Ion batteries usually last longer if you do not discharge them below 30% however on a laptop that will not extend their life that much. Best is to use A/C adapter whenever possible.

I use the free version of BatteryBar to monitor my battery. Click the Green button on the
Yellow box on right side of page to download latest stable version.

BatteryBar - Free version available

Another good program

Vista Battery Saver - Free

Problems with power usage and battery life - Mr Fixit

You might also want to check with the System Maker and any forums as many use their own proprietary software to monitor the battery and their could be known issues with your battery.


Taking care of your laptop's battery

Battery meter: frequently asked questions 

Conserving battery power 

Solutions to common battery problems 

How accurate is the battery meter?


Try this - make a Restore Point

How to Create a System Restore Point in Windows 7

How to Do a System Restore in Windows 7

Then Control Panel - Device Manager - Batteries - Double Click on each item - Drivers tab - Update Drivers (which may not do anything) - then Right Click and UNINSTALL each - REBOOT which will refresh the Driver stacks.

Problems with power usage and battery life - Mr Fixit
Hope this helps.
Rob Brown - Microsoft MVP <- profile - Windows and Devices for IT : Bicycle - Mark Twain said it right.

Rob Brown - past Microsoft MVP - Windows Insider MVP 2016 - 2021
Microsoft MVP Windows and Devices for IT 2009 - 2020

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Question Info

Last updated August 30, 2021 Views 41,539 Applies to: