Ibook - low level battery warning

hello:
all of a sudden the low level battery warning indicator stopped working. i checked the system profile and it informed me that it's not on. how do i turn this back on, again.
please help. this is more of an annoyance than anything.
thanks.
-angela

My understanding is that it indicates the current status of the indicator. In other words, if your battery is charged and the iBook is running off of it, there is no low level warning.
If, though, you run the battery down on a given cycle and you've received the low level battery warning-- then it will say Yes!
At least that's what I've found out reading on these boards and on line. I just made the very same discovery you did about this and was curious.
I was checking it out because, oddly, I'm not getting the low level battery warning any more-- and with, supposedly 30 minutes or so left, the iBook will suddenly shut OFF entirely--no warning-- and that means losing anything that's not been saved!
Haven't figured out what's with that... my battery cycles are only 187 way below the number expected... the Full Charge Capacity (mAh), however, is only 1689mAh instead of the NEW 4400.
Anyone have some suggestions? I reset PRAM which did not work, power cycled the battery, which did not work, and have recently reset the PMU. I haven't run it down again, so let's see if the PMU tip/trick works!

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Is there a low level battery audio signal iphone 6 plus

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Disable low on battery warning for Mighty Mouse?

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Depending on where the real issue is, in the system, other options may include
performing an "Archive & Install" then upgrade the system using the latest bits.
Since that gives you an option to move user and account settings over to an
all new System Folder, you would only have to find and reinstall anything not
otherwise up to date. Things to include the latest Flash & Shockwave, or any
parts not automatically put into place through the update to the last OS X step.
There are some details in this Archive and Install, plus update, which may be
tedious; while most should be straightforward. No telling if this would fix the
problem, but it should be able to resolve it.
When did this problem begin? Have you replaced the battery in the mouse
more than once since you bought it? (Is the mouse under warranty? To
hope the problem was only in the mouse itself may be optimistic.)
The non-hack answers may be best; since some hacks may later be a
source of a new problem when later system updates are applied. But
not always. Another thing to try, if the mouse battery issue is recently
developing and no direct cause is known, you could get the last OS X
Combo update and see if reapplying it over the current installation may
help; be sure to start up in SafeBoot, then run Disk Utility's 'repair disk
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Sometimes just going into a computer in Terminal or Single-user and
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Hopefully someone with more tweaking experience or an issue similar
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Leopard's Low Battery Warning on iBook

Hey everyone,
I recently upgraded my iBook G4 to Leopard. Everything works fine until I run the battery down low. When the low battery warning pops up, it either causes a spinning pinwheel or just appears as a white rectangle with a shadow. Then, after slowing down my Mac for a few seconds, the warning window disappears and the airport and battery icons in my menu bar disappear. A few seconds more, and warning and the icons reappear. The only way for me to stop this cycle is to plug in the adapter.
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Matt

Turns out I was having more problems than just the indicator... after replacing my power adapter everything worked fine.

Battery Low Level Warning

From what I've read, I have been having the same battery problems as most of you here. So after getting a replacement battery from an Apple Store, Im wanting to get the most out of my new one.
Here's the thing, so somewhere in the middle of my battery failing and my computer randomly shutting down, the low level warning prompt, turned off. Where do turn the warning prompt to "yes" instead of "no"? I can't seem to find it, other than knowing its off when looking under the Power section in System Profiler.
Thanks for the help. This forum is amazing.

Thanks for the response. But I still have another question. Why, if the prompt is automatic, then does it read as "NO" in the power section of System Profiler. I have the new battery in and it JUST got to 100%. Im thinking about calibrating it right now. Would you suggest that being a good idea or not? I know how to calibrate it, but I dont know when the best time to start it first.
Thanks again.

Low battery warning percent fixed??

I have Vaio VPCYB15AG with Win 7 Ultimate SP1 32Bit retail. In it's advanced power options even though I can set percentage value for Low battery warning, I find that the warning is given (Blinking green power LED) when battery falls to 12%.Is this level kind of hard wired into the product or will it be a software / hardware bug?Thanks

Hi mmp_2013,
Thank you for considering Sony Community!
If the LED or the light indicator is blinking, then something is going on with the battery. It could be hardware but we cannot tell right away. Please follow the steps here to isolate your issue:
Check the battery health on Vaio Care (Desktop) - If indicated as "critical" then it already hardware issue
Power cycle - Remove the battery and all peripherals -> press and hold the power button for 5 seconds OR, if the battery is not removable, remove all peripherals-> look for a battery off button on the bottom of the laptop -> push the button for 5 seconds -> you may use a safety pin if you see a pinhole.
Reset BIOS - Turn off the unit -> press and power button and immediately, keep hitting F2 key. Once in BIOS, go to Exit tab -> Get Default Values -> hit Enter -> Save changes and exit.
Download or update Sony® Shared Library, Sony® Firmware Extension Parser Device Driver, BIOS Update Utility from Sony's website based on your location or from where you purchase the laptop.
Your Vaio VPCYB15AG is an Asia-Pacific model and we have limited information about your unit.
For further assistance regarding your concern, please contact the Sony offices/Sony representative offices nearest to your place of residence in Asia Pacific region http://www.sony-asia.com/countryselector.html?hpid=countryselector:AsiaPacific. Due to proximity, they are in a better position to respond to your questions or concerns.
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Regards,
Vincent
If my post answers your question, please mark it as "Accept as Solution"

Low Battery warning at 90%

I have a G4 ibook, that didn't get used for a long time, (over a year) and I am using again after my newer laptop was stolen. The battery may be near the end of it's life, but I am confused by getting a "low battery warning" dialog box, when the battery indicator says 90%.
If it was just dropping quickly I'd assume the battery was toast, but I don't get the conflict between the two pieces of information.
Is there any point in resetting the PMU? Should I just consider this a not-so-portable until I replace it?

Have you tried calibrating the battery?
Calibrating your computer's battery for best performance
If that doesn't help, resetting the PMU may not help, but it wouldn't hurt.

Low battery warning. (cross post)

at what percent do you usually get this warning at? on my iBook i would get it at 4% but now on my MB i get it at 8% and when it drained to 0 my MB shut off and didnt go to sleep? is that normal?

I keep getting a low battery warning when I start up my laptop.
I usually have it plugged in when I use the laptop.
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[SOLVED] Low battery warning form acpi

Hello!
I hope you could help me out, as I am stuck.
I am trying to automate pm-utils stuff on my laptop, that I have until now been doing by hand with CLI. I installed acpid and I really like how it works as it is very easy and clean to add event handling for closing laptop lid etc.
But I was unable to use /etc/acpi/handler.sh to detect low battery warning. Only event that is received under "battery" is when the AC adapter is plugged in or battery is removed/inserted, but not when battery is low.
I tried to find more info on this, but discovered only that it is supposedly possible to configure alarm level in /proc/acpi/battery/BAT1/alarm, but that file seams to be depreciated and it's replacement (?) /sys/class/power_supply/BAT1/alarm contains a number resulting in about 3% charge, that should have been sufficient for at least writing to log file if any event was received from the battery, but nothing was. (And anyway, I don't know how to configure it using this file, as I am not allowed to write to it and it gets overwriten by something.)
So I could really use some pointers on why the acpi event for low battery doesn't get generated (or why I am missing it) or what alternatives I have.
I really would not like to run a cron job for checking battery level, as the acpi event method seams much more beautiful to me and would allow me to sleep better.
Thanks a lot!
Last edited by beatle (2012-01-06 01:20:29)

/dev/zero wrote:No worries :-) If you can think of any ways to improve the script, I'd be interested to know. It isn't perfect because output from "acpi -b" is unpredictable.
I did adapt your script a bit to suite my needs (Thanks for showing how to write deamon scripts! I haven't thought that it is so straightforward and beauty full.) , but I wouldn't say I improved it as I am basically illiterate in bash.
For now I deal with the output of "acbi -b" by searching for the "NN%" (with grep, as I know not of a better way) - remaining percent of battery charge - in it, as I suspect this sub string would allays appear in "acbi -b" output even when the 'remaining time' part is unpredictable (haven't checked it though!).
Also, my laptop is usually on mute so I changed the text-to-speech warning to a i3-nagbar popping up. (And along the way learned how to control spawned processes in bash! I love just GNU/Linux!).
/usr/sbin/battery_monitor_loop
#! /bin/bash
SLEEP_TIME=5 # Default time between checks.
SAFE_PERCENT=30 # Still safe at this level.
DANGER_PERCENT=15 # Warn when battery at this level.
CRITICAL_PERCENT=5 # Hibernate when battery at this level.
NAGBAR_PID=0
export DISPLAY=:0.0
function launchNagBar
i3-nagbar -m 'Battery low!' -b 'Hibernate!' 'pm-hibernate' >/dev/null 2>&1 &
NAGBAR_PID=$!
function killNagBar
if [[ $NAGBAR_PID -ne 0 ]]; then
ps -p $NAGBAR_PID | grep "i3-nagbar"
if [[ $? -eq 0 ]]; then
kill $NAGBAR_PID
fi
NAGBAR_PID=0
fi
while [ true ]; do
killNagBar
if [[ -n $(acpi -b | grep -i discharging) ]]; then
rem_bat=$(acpi -b | grep -Eo "[0-9]+%" | grep -Eo "[0-9]+")
if [[ $rem_bat -gt $SAFE_PERCENT ]]; then
SLEEP_TIME=10
else
SLEEP_TIME=5
if [[ $rem_bat -le $DANGER_PERCENT ]]; then
SLEEP_TIME=2
launchNagBar
fi
if [[ $rem_bat -le $CRITICAL_PERCENT ]]; then
SLEEP_TIME=1
pm-hibernate
fi
fi
else
SLEEP_TIME=10
fi
sleep ${SLEEP_TIME}m
done
Hm, and just now I got an idea, that, in order to avoid the unpredictable "acpi -b" I could use the acpi information form /sys/class/power_supply/BAT1/* directly as I already have a deamon running. Will try that out.
Last edited by beatle (2012-01-06 18:17:41)

Where is low battery warning in Mountain Lion?

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Turbo toes
This helped meRe: Where is low battery warning in Mountain Lion?
Jul 29, 2012 8:51 AM (in response to Kallampad)
It kicks in at 3% on my 2011 MBA, I have seen reports that the % at which it appears can vary quite a lot, from 16% to 3%.
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MrSlinky
Re: Where is low battery warning in Mountain Lion?
Aug 13, 2012 4:57 AM (in response to Turbo toes)
My rMBP's battery had fallen to 3% before I noticed it, and I never saw any popup warning. I was not running anything fullscreen (just firefox covering part of the screen).
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Hi,
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MacBook Mac OS X (10.4.8) 512MB, 2GHz Intel Core Duo

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Does anybody know if the 6500 slide has a low battery warning tone function? If so how can I turn it on?
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06-Sep-2008 11:50 PM
cazzi74 wrote:
Thanks for the advice.
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cazzi74 wrote:
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Message Edited by nj15 on 07-Sep-2008 12:04 AM

Disable low battery warning?

Is there a way to disable the low battery warning that pops up at 20% remaining? I turned off Notifications, but that didn't stop the low battery notifications.
I usually have up to two hours to go when the battery is 20%, and dismissing this warning every 10 minutes gets annoying. Plus, there is a battery level indicator on the screen at all times, and it turns red when 20% is reached. So really, this pop-up warning serves no purpose at all. It reminds me of Windows, tbh.

Hello MikeC2010,
And welcome to Apple Discussions!
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Shut down after low battery warning

Hi
After I get the low battery warning on my iBook G4 (about 30 seconds) my iBook unexpectedly shuts down, I have tried recalibrating the battery several times, including shutting the lid to put it to sleep after the warning then plugging it in and waking it (to recalibrate you are supposed to wait until the machine sleeps) and letting it charge right up.
I have also tried resetting the PMU, although I dont think this is working as I hit shift-ctrl-apple/option-and the power button, and all that happens is the machine starts up as usual, according to the documentation, I should have to then power up the machine.
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Mike

That definitely sounds like a battery that wants to be replaced.
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~Lyssa

No Low Battery Warning (Probably)

Having just installed a new battery and spent five hours (yes five!) running it flat to calibrate it, I notice that after recharging, System Profiler (under Power and Battery Information) says 'First Low Level Warning - No'. I assume that means that I won't get a warning message on screen when power drops.
How do I get that back?
I don't suppose it's relevant but the battery states it's 4400mAh and System Profile states full charge capacity as 4358mAh which I assume is close enough?

Low level warning -no means that the level isn't in effect now. Run the battery
down and it will change to yes.
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Ibook - low level battery warning

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