Linux

45457 readers

1409 users here now

From Wikipedia, the free encyclopedia

Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

Rules

Posts must be relevant to operating systems running the Linux kernel. GNU/Linux or otherwise.
No misinformation
No NSFW content
No hate speech, bigotry, etc

Related Communities

Community icon by Alpár-Etele Méder, licensed under CC BY 3.0

founded 5 years ago

MODERATORS

[email protected]

what's your take on this tlp command? (lemmy.ml)

submitted 1 month ago by [email protected] to c/[email protected]

2 comments fedilink hide all child comments

command: sudo tlp-stat -b

output:

TLP 1.6.1 --------------------------------------------

+++ Battery Care

Plugin: generic

Supported features: none available

+++ Battery Status: BAT0

/sys/class/power_supply/BAT0/manufacturer = DP

/sys/class/power_supply/BAT0/model_name = bq20z451

/sys/class/power_supply/BAT0/cycle_count = 666

/sys/class/power_supply/BAT0/charge_full_design = 6330 [mAh]

/sys/class/power_supply/BAT0/charge_full = 5043 [mAh]

/sys/class/power_supply/BAT0/charge_now = 4936 [mAh]

/sys/class/power_supply/BAT0/current_now = 0 [mA]

/sys/class/power_supply/BAT0/status = Full

/sys/class/power_supply/BAT0/charge_control_start_threshold = (not available)

/sys/class/power_supply/BAT0/charge_control_end_threshold = (not available)

Charge = 97.9 [%]

Capacity = 79.7 [%]

my take:

this is an apple battery, meaning this command won't load it up to a threshold I choose (not available)

charged currently at 97.9%, even if the gui says it's 100%

capacity is 79.7%, what for me is a very high value, considering this is a 10 year old notebook (maybe it hasn't been used much?)

your take?

top 2 comments

sorted by: hot top controversial new old

[–] [email protected] 5 points 1 month ago (1 children)

I'd recommend a full battery calibration before running the command one more time, if you haven't already (charge the battery fully, leave it on the charger at 100% for a while, then fully discharge until it shuts itself off, leave it for a bit, then fully recharge while off). If the calibrated values line up with a full:design ratio of ~80%, especially with a 10-year-old battery with almost 700 cycles on it, my take is that's pretty great.

That said, I think the best way to get an accurate feel for the health of an old battery is to put it through one full cycle of normal use and time how long it takes to die.

[–] [email protected] 1 points 1 month ago

The best way would in fact be testing it with an electronic load that applies a precise and well known load to the battery and integrates capacity until a matching shutoff condition is reached.

However, the majority of people do not happen to have access to such an instrument, so I'd say your suggestion is a close approximation of the best way, which could be augmented by adding simple measurements, which can be done by most people at home for a reasonable, quantifiable judgment.