Battery Limiter on KDE

Support
1

Hello
I need to limit battery charge to 40-80% and get notifications on each state
I have tried tlp, battery-monitor and some scripts.
tlp doesn’t work for me, battery-monitor is buggy and in case of scripts I think I couldn’t configure correctly and couldn’t fully understand how to get the results
I hope someone can help me here and give exact instructions

2

This feature will be available with 5.20:


which is scheduled for 2020-10-13: Schedules/Plasma 5 - KDE Community Wiki
3 Likes
3

It’s great thanks a lot for amazing news I won’t have to break anything in my system :smiley: :smiley: :smiley:

4

That’s fantastic. My machine is usually plugged in so this will help preserve the battery. Thanks for the info…

5

Check the BIOS setting if you have the option as well,some laptops has the option to set the limit and the % to charge up the battery.

6

Please everyone: don’t get overexcited:

Most hardware is Defective by design because the manufacturer wants to sell more batteries. This is how you can test your support today:

sudo tlp-stat --battery

--- TLP 1.3.1 --------------------------------------------

+++ Battery Features: Charge Thresholds and Recalibrate
natacpi    = inactive (laptop not supported)
tpacpi-bat = inactive (laptop not supported)
tp-smapi   = inactive (laptop not supported)

[...]
/sys/class/power_supply/BAT0/cycle_count                    = (not supported)
[...]

So I already know my Acer laptop is not supported and one of the reasons I’ll never buy one again…

:man_shrugging:

2 Likes
8

If you have a Latop which supports lenovo vantage you could try this
https://wiki.archlinux.org/index.php/Lenovo_IdeaPad_5_15are05#Battery_Conservation

9

It seems my laptop HP Probook 450 G6 is not supported as well so back to first option
How can I limit battery charge to 80% and get notification or just get notification when battery level is 80%? Anyone can help?

10

Sorry for being confusing in my previous post: There is nothing out there for your Probook 450 G6 and HP refuses to do anything about it because that’s how they sell more batteries (and what I meant with Defective by design)

But you’re always free to create a script ¹ that runs once every 5 minutes and prints a message that your battery level is >80%, but then it’ll print it every 5 minutes… :man_shrugging:

E.G. something like ²:

#!/bin/bash
MyBatteryCharge=`sudo tlp-stat --battery | grep Charge | grep = | awk '{print $3}'`
if (( $(echo "$MyBatteryCharge > 80" |bc -l) )); then
  notify-send "Battery" "Hey, this is your battery talking: I'm charged above the 80% threshold"
fi

and then cron that every 5 minutes.

But the answer to:

is:

you cannot.

:sob:

Note 1: That’s the advantage of FLOSS: You can always do yourself what others don’t provide for you…
Note 2: I’ve just created this script off the cuff and haven’t actually tested it, it’s just an example.

11

I have been eagerly awaiting this feature!

12