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#1 2021-04-07 13:40:50

Registered: 2020-04-04
Posts: 9

Optimization battery health laptop plugged


I'm new here. I install arch two month ago with DWM in my Thinkpad x1 c7. I only use it like a desktop pc, plugged into AC. What its the best way to take care the battery health? My last laptop with mint was really damage (critical status) by using it in AC for one year. I don't want to have the same problem.

With one year of use (i had KDE manjaro before arch), my cycle_count is 77.

What its the best way? For now i don't have any software for power manager. My idea is to change the charge thresholds. Something else?



#2 2021-04-07 18:51:57

Registered: 2018-06-01
Posts: 6

Re: Optimization battery health laptop plugged

You'll want to read the Arch Wiki article on TLP. Thresholds can be set as a feature of it as well as general power saving. I use my ThinkPad similarly and at the moment set my threshold to 50%. But in the first year I did lose some battery capacity (pretty much put maybe 2 cycles on it that whole time) and it's been a very slow loss since (2016 P50 laptop). It's still on the original battery and overall the actual use time feels pretty much the same as new when I wasn't as experienced in making sure it was running more power efficiently (2-4 hours depending on load, 1 hour maybe if gaming).


#3 2021-04-07 19:20:50

Registered: 2012-09-03
Posts: 19,799

Re: Optimization battery health laptop plugged

Charge the battery at ~60%, remove it from the notebook and store it in a cool-ish place (it doesn't have to be the fucking fridge, but don't store it in the sun or on the heater or so)

Since the notebook typically gets warm/hot during usage, it's not a good place to store a battery and you also don't want to perma-charge it
So remove it from the notbook unless you want to abuse it as a … wer_supply


#4 2021-04-11 10:27:30

Registered: 2020-04-04
Posts: 9

Re: Optimization battery health laptop plugged

Thx for the reply!

I try with powertop and then delete it and now with tlp. I'm experiencing a problem that now my status battery on AC its unknown and the percentage stuck at 96%. I discharge to 95% and plugged it again and same thing.

Here is the output of tlp-stat -b

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

+++ Battery Features: Charge Thresholds and Recalibrate
natacpi    = active (data, thresholds)
tpacpi-bat = active (recalibrate)
tp-smapi   = inactive (ThinkPad not supported)

+++ ThinkPad Battery Status: BAT0 (Main / Internal)
/sys/class/power_supply/BAT0/manufacturer                   = LGC
/sys/class/power_supply/BAT0/model_name                     = 02DL004
/sys/class/power_supply/BAT0/cycle_count                    =     77
/sys/class/power_supply/BAT0/energy_full_design             =  51000 [mWh]
/sys/class/power_supply/BAT0/energy_full                    =  51250 [mWh]
/sys/class/power_supply/BAT0/energy_now                     =  49120 [mWh]
/sys/class/power_supply/BAT0/power_now                      =      0 [mW]
/sys/class/power_supply/BAT0/status                         = Unknown

/sys/class/power_supply/BAT0/charge_start_threshold         =     96 [%]
/sys/class/power_supply/BAT0/charge_stop_threshold          =    100 [%]
tpacpi-bat.BAT0.forceDischarge                              =      0

Charge                                                      =   95.8 [%]

Last edited by mmzz (2021-04-11 10:28:07)


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