{"id":45477,"date":"2024-02-06T11:51:14","date_gmt":"2024-02-06T11:51:14","guid":{"rendered":"https:\/\/ubuntuhandbook.org\/?p=45477"},"modified":"2025-12-02T10:38:46","modified_gmt":"2025-12-02T10:38:46","slug":"limit-battery-charge-ubuntu","status":"publish","type":"post","link":"https:\/\/ubuntuhandbook.org\/index.php\/2024\/02\/limit-battery-charge-ubuntu\/","title":{"rendered":"How to Set Battery Charge Limit in Ubuntu 22.04 & 24.04"},"content":{"rendered":"

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This is a step by step beginner’s guide shows how to configure your Ubuntu laptop to limit the maximum battery charge level.<\/p>\n

For those who keep laptop plugged in for long term, it’s better to set battery charge limit to reduce the battery wear by constantly trickle charging.<\/p>\n

Linux Kernel supports battery charge threshold, and there’s a merge request<\/a> to provide graphical UI options in Gnome Control Center. Until GNOME officially support this feature, you can follow this tutorial to do the job step by step.<\/p>\n

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NOTE: NOT all laptops are supported!! And, some laptops, e.g. DELL, Chromebooks, need the most recent Linux Kernel.<\/b><\/p>\n

Method 1: Manually configure the Battery Charge Threshold<\/h3>\n

Step 1: Check if your laptop supports charge threshold<\/h4>\n

Most modern laptops support charge limiting, but old machines may NOT. In my case, the cheap HP laptop does not support it, but ThinkPad does.<\/p>\n

First, press Ctrl+Alt+T<\/code> on keyboard to open up a terminal window. Then run command:<\/p>\n

ls \/sys\/class\/power_supply\/<\/pre>\n
It will list the device names including your battery, usually BAT0<\/b>, BAT1<\/b>, BATC<\/b>, BATT<\/b>, etc.<\/p>\n
In my case, its BAT0<\/code>. To tell if it supports battery charge limit<\/b>, run:<\/p>\n
ls \/sys\/class\/power_supply\/BAT0<\/pre>\n
Replace BAT0<\/code> in last command accordingly<\/i>. And, it will output following 2 files telling that its support the feature!<\/p>\n