Recent Topics
2 cycle with catalyst - carb settings?
by cjolson140 - 06/02/20 01:22 PM
Scam: Ghana $+2 - US $-2
by pandus13 - 06/02/20 01:09 PM
Motorcycle rear shock rebuild
by Reddy45 - 06/02/20 12:45 PM
2016 Lexus RX350 Oil Change change
by Toros - 06/02/20 12:43 PM
Tire Mobility Kits
by wings&wheels - 06/02/20 12:06 PM
Worst accident you've witnessed
by Dave Sherman - 06/02/20 12:04 PM
Shock Fluid
by splinter - 06/02/20 11:21 AM
Michelin X-Ice 4 North for Canada ...
by odie - 06/02/20 11:03 AM
Rockauto code expires 8/2
by gallydif - 06/02/20 08:19 AM
The worst job you ever had?
by Chris142 - 06/02/20 08:04 AM
P218F on my Ford PSD
by Donald - 06/02/20 06:34 AM
Kudos to Griot's
by Egg_Head - 06/02/20 05:43 AM
Exide Battery files for bankruptcy
by Randol - 06/02/20 04:34 AM
Just one more wax question.
by rrretiree7 - 06/02/20 01:49 AM
Removing stuck bolts- interesting technique
by rubberchicken - 06/02/20 12:47 AM
Unless it is a misprint?
by 340_Magnum - 06/01/20 10:25 PM
Raymond Weil 5590 Watch Battery Replacement
by maverickfhs - 06/01/20 09:22 PM
Echo SRM 230 idling high
by CDX825 - 06/01/20 08:40 PM
Newest Members
NewMex, RandyN11049, bbrtuning, chapys, DaaBoss
71593 Registered Users
Who's Online Now
102 registered members (ABCarr, alarmguy, 390pi, 55hambone, 2015_PSD, 10 invisible), 2,561 guests, and 22 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums67
Topics306,061
Posts5,286,640
Members71,593
Most Online4,538
Jan 20th, 2020
Donate to BITOG
Print Thread
Hop To
Laptop battery and Linux #5431566 05/17/20 03:52 PM
Joined: Jan 2006
Posts: 1,369
D
Dave Sherman Offline OP
OP Offline
D
Joined: Jan 2006
Posts: 1,369
Any idea how to get a netbook battery to re-calibrate? I have an Acer Aspire One A0532h. It was given to me to "dispose" of it, so I wiped the Win7 that was on it and put Linux Mint on. The old battery was quite tired so I bought a replacement. Trouble is, it seems to be stuck thinking it has lots more life than I can get out of it. Once it gets to about 54%, it just stops dead and won't power up until I plug it in. Unfortunately, after a couple rounds of this it hasn't changed its predicted life at all. The BIOS has no utility to calibrate the battery. Google even pointed me to something called power-calibrate, but when I ran it it reports the hardware isn't compatible.


2015 Honda Pilot EX AWD Pennzoil Platinum 0W-20 STP filter
1977 MG Midget Valvoline VR-1 20W-50 Bosch Filter
Re: Laptop battery and Linux [Re: Dave Sherman] #5431578 05/17/20 03:59 PM
Joined: Mar 2020
Posts: 547
IMSA_Racing_Fan Offline
Offline
Joined: Mar 2020
Posts: 547
Linux doesn't manage power like Windows, if you have the Win 7 license perhaps download an install disk and make a Win7/Mint dual boot machine.


2012 Cadillac CTS 3.0
1997 Ford Aspire
1991 Jaguar XJ6
1986 Kawasaki ZG1000 Concours
Re: Laptop battery and Linux [Re: Dave Sherman] #5431630 05/17/20 04:40 PM
Joined: Dec 2008
Posts: 3,429
B
Bottom_Feeder Online Content
Online Content
B
Joined: Dec 2008
Posts: 3,429
Update to the latest BIOS (1.26) first if it doesn't have it already. Looks like since Windows is out, you'll need to do it in DOS so I guess creating a bootable thumbdrive in Rufus or similar would be in order.

Re: Laptop battery and Linux [Re: Dave Sherman] #5431666 05/17/20 05:06 PM
Joined: Oct 2018
Posts: 244
W
WagonWheel Online Content
Online Content
W
Joined: Oct 2018
Posts: 244
Typically when you see this behaviour the battery is pretty worn and nearing its useful life.

That being said, and without knowing specifics of the "fuel gauge" in this example, the general procedure to re-calibrate the fuel gauge is:

1. Plug the charger and let it reach 100%, then let it stay at 100% for a few hours. It's important not to unplug during this time but you can use the laptop normally during this time.

2. Remove the charger and let the battery discharge to zero through normal use. Do not re-plug the charger at any time, but it's OK to shutdown the laptop during the discharge phase.
=> Note: Since the OS may shutdown before it reaches 0%, you can boot into BIOS and let it discharge the remaining amount until it shuts off due to no remaining battery capacity. Also, it's recommended to reduce the load, such as using low screen brightness, when you reach the end of the discharge cycle. A high discharge current on a weak battery will lead to an earlier shutdown.

3. Let the battery "rest" in this fully discharged state for a few hours before you plug in the charger. I usually let it sit in this state overnight then let it charge back to 100%. It may be needed to repeat the cycle a few times, but take note that each full charge/discharge cycle further wears the battery.

Here's the science behind it: The fuel gauge typically has a small microprocessor that monitors the battery during charging and discharging cycles in order to predict the capacity. As the battery ages and/or if there are not sufficient discharge cycles (20-100%), it can lose calibration leading to sudden shutdowns at seemingly high states of charge (battery %). Even though the battery is at 0% and the system won't turn on, there is usually enough energy in the battery to power the fuel gauge which allows it to re-calibrate at the 0% level. It will then relearn the low and the high capacity states.

This procedure works for most Apple and Dell products, but may vary depending on the battery manufacturer.

Last edited by WagonWheel; 05/17/20 05:07 PM. Reason: Grammar

2003 Honda Accord 2.4L 5AT - 153k miles
2006 Honda Odyssey 3.5L EX-L 127k miles (S-VCM)
Re: Laptop battery and Linux [Re: WagonWheel] #5431884 05/17/20 09:18 PM
Joined: Mar 2020
Posts: 547
IMSA_Racing_Fan Offline
Offline
Joined: Mar 2020
Posts: 547
This definitely sounds legit.


2012 Cadillac CTS 3.0
1997 Ford Aspire
1991 Jaguar XJ6
1986 Kawasaki ZG1000 Concours
Re: Laptop battery and Linux [Re: WagonWheel] #5431894 05/17/20 09:26 PM
Joined: Apr 2017
Posts: 3,640
H
hallstevenson Offline
Offline
H
Joined: Apr 2017
Posts: 3,640
Originally Posted by WagonWheel
This procedure works for most Apple and Dell products, but may vary depending on the battery manufacturer.

Yeap, battery calibration is mostly independent of the OS on the machine. The BIOS is what really keeps track. While Windows may have the ability to bypass the BIOS and 'read' the battery capabilities directly, you can still teach it using steps like you gave.

Re: Laptop battery and Linux [Re: Dave Sherman] #5431923 05/17/20 10:12 PM
Joined: May 2005
Posts: 1,034
9
97prizm Offline
Offline
9
Joined: May 2005
Posts: 1,034
Linux has a few newer options now. This sems to be the better of them on How To Geek.

How to Geek


If at first you don't succeed fail fail again. (Waldorf and Statler.)
1997 Geo Prizm...DEAD
1984 Mazda RX-7 Spec 7
2005 Dodge Neon
Re: Laptop battery and Linux [Re: Dave Sherman] #5431928 05/17/20 10:22 PM
Joined: Jul 2008
Posts: 1,465
R
rubberchicken Offline
Offline
R
Joined: Jul 2008
Posts: 1,465
A different take- " I bought a replacement " battery. Was this a rebuilt or aftermarket battery ? I have had poor results with aftermarket and rebuilt batteries. I can understand in the case of aftermarket- they cut corners and do not put in the electronic controls like the OEM battery. In some cases the OEM puts in controls into the battery that discourage the aftermarket. For rebuilt batteries though- all they are doing is replacing the cells in an OEM battery, so this should come out fine right ? But in my experience I am 0 for 2 getting rebuilt batteries, but I have not tried in over 5 years. At one point I saw some software that was supposed to assist in recalibrating batteries, but it was only sold to professionals and was very costly (like many thousands of $$).

Re: Laptop battery and Linux [Re: Dave Sherman] #5431932 05/17/20 10:29 PM
Joined: Jul 2008
Posts: 1,465
R
rubberchicken Offline
Offline
R
Joined: Jul 2008
Posts: 1,465
This free rpm is available for Ubuntu , so it is probably available for your distro as well.

https://askubuntu.com/questions/446084/how-to-calibrate-the-laptop-battery-on-12-04

power-calibrate (rpm) debian, ubuntu
powertop (red hat, arch etc)

Last edited by rubberchicken; 05/17/20 10:29 PM.
Re: Laptop battery and Linux [Re: Dave Sherman] #5431933 05/17/20 10:30 PM
Joined: May 2005
Posts: 1,034
9
97prizm Offline
Offline
9
Joined: May 2005
Posts: 1,034
Linux power calibration from the terminal.

sudo apt install power-calibrate

Then type
power-calibrate -r


If at first you don't succeed fail fail again. (Waldorf and Statler.)
1997 Geo Prizm...DEAD
1984 Mazda RX-7 Spec 7
2005 Dodge Neon
Re: Laptop battery and Linux [Re: Dave Sherman] #5432081 05/18/20 06:56 AM
Joined: Jan 2006
Posts: 1,369
D
Dave Sherman Offline OP
OP Offline
D
Joined: Jan 2006
Posts: 1,369
As far as I know it was new battery, but maybe it was a refurb. The netbook had Windows 7 starter edition on it originally according to the tag, and I managed to download the ISO for it. I'll have to say, I'm a little disappointed by PeppermintOS (which I had tried first) and Mint. I didn't think it would be a screamer by any stretch with a no-frills video, but it was very jerky watching any kind of video. Put Win 7 back on it, got the key to work, and it's much better under Windows. We'll see if it works any kind of magic on getting the battery to be any more accurate.

Anybody know if the Win10 media creation tool mentioned at the top of the form works for Win 7 starter edition? Even if I don't keep Windows I can at least run the BIOS update now.


2015 Honda Pilot EX AWD Pennzoil Platinum 0W-20 STP filter
1977 MG Midget Valvoline VR-1 20W-50 Bosch Filter
Re: Laptop battery and Linux [Re: Dave Sherman] #5433760 05/19/20 10:41 PM
Joined: Jul 2008
Posts: 1,465
R
rubberchicken Offline
Offline
R
Joined: Jul 2008
Posts: 1,465
I think the media creation tool will work on any flavor of WIn 7.

Re: Laptop battery and Linux [Re: Dave Sherman] #5434510 05/20/20 07:01 PM
Joined: Aug 2013
Posts: 3,980
H
HangFire Offline
Offline
H
Joined: Aug 2013
Posts: 3,980
If you give Mint another try, whatever you tried the first time, 32bit or 64bit, try the other.
Also, everything here:

https://easylinuxtipsproject.blogspot.com/p/speed-mint.html


Various musings: http://hangfire.net
Re: Laptop battery and Linux [Re: Dave Sherman] #5434826 05/21/20 07:08 AM
Joined: Aug 2005
Posts: 1,003
K
kc8adu Offline
Offline
K
Joined: Aug 2005
Posts: 1,003
a lot of aftermarket batteries lie about their capacity.
a dead giveaway is say a 5200mah pack that showed wear level of 70% after 1 cycle.
the cheap pack had all the id and capacity calibration for a genuine pack but instead of the 2600mah cells it should have been built with it had 1800mah cells.
this is a common fraud with cheap packs on ebay and amazon.
https://www.nirsoft.net/utils/battery_information_view.html

Previous Thread
Index
Next Thread

BOB IS THE OIL GUY® Powered by UBB.threads™