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Use ioreg command to get battery cycle count | 33 comments | Create New Account
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you need to specift the clip width for ioreg with ioreg -w0 -l (from man ioreg)
-w Clip the output to the specified line width. The default width value is the current screen size. A value of 0 specifies an unlimited line width.

...or, recalling the unix command 'fmt'
ioreg -l | grep Capacity | fmt
or
ioreg -l | fmt | grep Capacity

No, this way doesn't work, because it's ioreg that is clipping the content, not grep. Running it through fmt does nothing to bring back content that has already been lost.

So, what does this mean, exactly? My cycle count is 196. Is my battery getting on in years, or is that really good?

http://www.buchmann.ca/Chap10-page7.asp
has some info on this.
i'm not sure what is or isn't good for apple laptops (since the cycle count # meaning will be different for each batch of batteries).
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Mind the gap...

http://www.macosxhints.com/article.php?story=20030314081843218
(our own Mac OS X Hints site!) has some *really* good info as well.
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Mind the gap...

This article is more specific than the others posted. It says the lifetime of a lithiumi-ion battery is in the range of 300-500 cycles.
http://www.batteryuniversity.com/parttwo-34.htm

interesting, my ibook's battery has a Cycle Count of 865. my Capacity is down to 2858, which is still decent considering its age. (the capacity used to be as high as 3530)

There is a small utility which gives practically the same number of
elements as this command : Battorox (freeware) : http://www.branox.com/Battorox/Battorox.html
This small software must be based on this quite practical command.
Afflicted for my English, but I am French.

Battorox may be doing something different, because it doesn't indicate the cycle count, which is the entire point of this hint.

Last version 1.7.8 indicates the cycle count now

Rob wrote...

Note that I have wrapped the lines by hand -- they're actually really wide single lines. If you don't set your Terminal window *really* wide, though, you won't see all the output; it gets chopped with a $ symbol. Is there a 'wrap' option on grep that I'm not aware of?

You can change this behavior in Terminal itself. Click on the Terminal menu item, then Window Settings..., and a dialog window will pop up. In the dropdown widget at the top of the window, select Buffer, then in the Scrollback section check the box next to Wrap lines that are too long. While you're here, you may also want to check the boxes next to Rewrap lines on window resize and Scroll to bottom on input.

It should possible to get the same result with the defaults command:

defaults write com.apple.Terminal Autowrap YES
defaults write com.apple.Terminal Backwrap YES
defaults write com.apple.Terminal RewrapOnResize YES

Hope this helps!

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DO NOT LEAVE IT IS NOT REAL

Oh and, in case it isn't clear, after changing settings for a window in the dialog box, push the Use Settings as Defaults button to make the change permanent for new windows.

This probably won't take effect for other currently open windows, though I haven't tested that yet. New windows will have the new setting, so opening new windows or relaunching Terminal will make the changes available.

Terminal Charge Mac Os 11

The same constraint applies to the defaults command as well -- you'll need to open new windows or restart Terminal for it to work.

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DO NOT LEAVE IT IS NOT REAL

What I like to do if I get a result from a Terminal command that is either really long, or all on one line.. I just 'pipe it' to a file.
So, for this command I do:
ioreg -l >> ioreg.txt
Which dumps everything into that text file (in the current directory), then I can read it much more easily, search it, save it ect. Works great for man pages too.

Oh, I wanted to put up my result from ioreg... it's no wonder my battery doesn't hold a charge anymore! My TiBook is showing 100% capacity!
'IOBatteryInfo' = ({'Capacity'=176,'Amperage'=0,'Cycle Count'=299,'Current'=176,'Voltage'=16386,'Flags'=838860805,'AbsoluteMaxCapacity'=3600})
Is there any way to 'fool' the computer or the battery into thinking the Capacity is actually somewhre close to the 'AbsoluteMax?'

For reference, if anyone is interested, I have this:
'Capacity'=5370
'Amperage'=18446744073709549742 (when power is plugged in, the amperage is 0)
'Cycle Count'=31
'Current'=5203
'Voltage'=12263
'Flags'=4 (when power is plugged in, the flags value is 1090519045)
'AbsoluteMaxCapacity'=5400
(PBook G4 1.5G 17')

Hmm, I have all these settings turned on in my Window Settings/Buffer but ioreg and other commands like ps -ax still spit out lines that are too long, not wrapped, and end with a '$'. I even set these as the default and still no luck. Any ideas?

Use 'ioreg -l -w 0' (that's a zero) to disable the stupid truncating with the $.
God only knows why Apple would design a non-interactive program to destroy it's output by default...

use 'ps axww' instead, then ps won't truncate its output. (I typically add the 'u' flag too, but I don't remember why)

I'm amazed that you took the time to write all that about the Terminal settings but didn't bother to test it to find out it doesn't solve the problem.

I've updated my free and editable Battery Info AppleScript to reflect the new cycle count parameter.
Jon

Very nice little script. One small suggestion, add a link back to your website below the battery information. I would like to be able to check back for future updates in a simple way. As it is, I just added the URL to your website in the comments section of the Info tab. Anyway, thanx for the great little script. Keep up the good work. =)

The MAC DADDY of all battery status indication apps, scripts or shell scripts is located here:
http://www.mitt-eget.com/software/macosx/#battery
Version 1.3 of the little guy has been updated to work with the changes in ioreg of 10.3.8
I had been using the old 1.1 version of this script and getting terrible results in 10.3.8 and started going down the long road of calibration thinking that would fix things. Now I have lost over 100Ah on my battery calibration due to time contrtaints and have to start over! This script is THE MAC of all battery apps. Just drag the shell script into a terminal window and hit return! Wish I'd seen this hint a day sooner!
Hmm..... When I run this script, all is well accept for the capactiy. It shows:
Battery: battery installed, above warning level
Charger: charger connected, not charging
UPS: UPS not installed
System: clamshell is closed, clamshell was closed on wake up
Voltage: 12.534V
Current: 0.000A
Charge: 2.778Ah of 2.923Ah (95.0%)
Capacity: 2.923Ah of 4.200Ah (69.6%)
Cycles: 108

Only 69.6% capacity even though I'm effectivly fully charged? I thought I had noticed a decrease in battery time. This first gen 12' PB is starting to show her age...

OK, I'll reply to my own post. So I've been running my PB for a while off the battery now, and I'm down to 74% charge, however the capacaty has stayed constant at 69.6%. So what gives? Am I understanding this wrong? Is there a way to fix this? Will a calibration perhaps get me back up to near 100% again? Thanx in advance.

Capacity isn't charge. Capacity is how much your battery-when-full compares to a brand new battery. Note that when you were at 95%, your capacity was being compared at 2.923Ah against a brand new battery's charge of 4.200Ah. And, no, most likely a calibration will not get you up near 100%. Although there are things you can Google for and look on the site here for with regards to trying to wring more life out of your battery, the more recharging cycles you go through, the more you lose capacity, until you eventually have to purchase a replacement battery.

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wow, on my new 12' powerbook I get this
'IOBatteryInfo' = ({'Capacity'=4555,'Amperage'=18446744073709550267,
'CycleCount'=6,'Current'=4150,'Voltage'=11835,
'Flags'=4,'AbsoluteMaxCapacity'=4400})
showing a capacity greater than the AbsoluteMaxCapacity. Not sure how that can be.
also it only shows a cycle count of 6, I have had this powerbook since Saturday and and thought I had gone through more cycles than that.
-lebn

In contrast, my wife's Pismo from 2000 still on the same battery reads:
| | | | 'IOBatteryInfo' = ({'Capacity'=10000,'Amperage'=0,'Cycle Count'=756,'Current'=0,'Voltage'=0,'Flags'=32,'AbsoluteMaxCapacity'=4800},{'Capacity'=546,'Amperage'=18446744073709550163,'Cycle Count'=756,'Current'=2,'Voltage'=10946,'Flags'=148,'AbsoluteMaxCapacity'=4800})
Capacity=10000 sounds a bit off though so I'm running the battery down to see if it changes any stats. I've been on 0% for the last 20 minutes or so without any ill effect.

ioreg -l | grep Capacity | less

err, nevermind. I spoke too soon.

Mac Os Mojave

ioreg -l -w300 > huh.txt ; open huh.txt
pipe the output to a file then open the file in the textEdit.
Just discovered that there is no sideways scrolling in textedit
Wouldn't recommend the -w0 option for this method.

I noticed this a couple of days ago. It broke the script that I was using to monitor my battery with Geektool. It's been updated, but did they really have to put a space in 'Cycle Count'? 'AbsoluteMaxCapacity' doesn't have any...
Geektool is great for monitoring this type of information. If anyone's interested, all of my scripts for it are posted in the geektool forum.

Terminal Charge Mac Os Download

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I was offered a penny for my thoughts, so I gave my two cents... I got ripped off.

Mac Os Terminal Commands List

Hi all,
Is there any software tool/script/command to find energy consumption by LCD and Wireless Interface? Someting like powertutor for Android.
Thanks & Best Regards,





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