I have a 17' MBP at 10.4.8 and am having the same problem. Power off instead of sleep, discontinuity in%battery e.g. 90% -50% in seconds followed by power warning followed by power off (not sleep - have to power up restart after power down). But other times it seems ok. Original battery ( MacBook Pro 17' Mac OS X (10.4.8). How to Install Battery E.T.A. For Windows PC or MAC: Battery E.T.A. Is an Android Tools app that is developed by Andrea Colzi and published on Google play store on NA. It has already got around 50000 so far with an average rating of 4.0 out of 5 in play store. The current Mac operating system is macOS, originally named 'Mac OS X' until 2012 and then 'OS X' until 2016. Developed between 1997 and 2001 after Apple's purchase of NeXT, Mac OS X brought an entirely new architecture based on NeXTSTEP, a Unix system, that eliminated many of the technical challenges that the classic Mac OS faced.
'do one of the following to preserve your MacBook battery life: Flying whi! mac os.
- Go to Applications/ Utilities/ System Profiler. Select 'Power' from the menu on the left, and (with your Mac plugged in, green light or no) copy and paste everything here. (Omit your battery serial number if it's there.).
- If your Mac is using an earlier version of any Mac operating system, you should install the latest Apple software updates, which can include important security updates and updates for the apps that are installed by macOS, such as Safari, Books, Messages, Mail, Music, Calendar, and Photos.
* Discharge the battery 50 percent before storing your MacBook. * When storing your computer for longer than five months, discharge the battery to approximately 50 percent and then remove it from the MacBook. If you are storing your computer for an extended period, recharge your battery to 50 percent every six months or so.'
that quote is from the apple website on the macbook. what does the first point mean? does it mean to take the battery out when the battery life reaches 50%?
heres the link from where I got the info from..
http://www.apple.com/support/macbook/care/
http://www.apple.com/support/macbook/care/
vix wrote:
'do one of the following to preserve your MacBook battery life:
* Discharge the battery 50 percent before storing your MacBook. * When storing your computer for longer than five months, discharge the battery to approximately 50 percent and then remove it from the MacBook. If you are storing your computer for an extended period, recharge your battery to 50 percent every six months or so.'
that quote is from the apple website on the macbook. what does the first point mean? does it mean to take the battery out when the battery life reaches 50%?
heres the link from where I got the info from..
http://www.apple.com/support/macbook/care/
http://www.apple.com/support/macbook/care/
- Don't let the battery go completely flat. Do not maintain a full charge for weeks or months at a time, whether it is in use or not, but especially if letting the computer sit for a few months.
- If not using the computer for more than five months, remove it from the computer.
- If not using the computer for more than five months, remove it from the computer.
vix wrote:
that quote is from the apple website on the macbook. what does the first point mean? does it mean to take the battery out when the battery life reaches 50%?
Yes, when they state that you should remove the battery from the MacBook after you've run it down to 50%, they mean you should remove the battery from the MacBook after you've run it down to 50%. That's _if_ you're going to store it for more than 5 months, though. If it's less, then don't remove it.
Are you planning on storing your MacBook for an extended period?
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Mike Rosenberg wrote:
vix wrote:
that quote is from the apple website on the macbook. what does the first point mean? does it mean to take the battery out when the battery life reaches 50%?
Yes, when they state that you should remove the battery from the MacBook after you've run it down to 50%, they mean you should remove the battery from the MacBook after you've run it down to 50%. Detective city mac os. That's _if_ you're going to store it for more than 5 months, though. If it's less, then don't remove it.
Are you planning on storing your MacBook for an extended period?
--
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No im not, i just got my first ever mac.. and i love it!!!!! much better than pc's there so like 20th century
btw vista is a copy of os x 10.5 leopard
Thus spake Mike Rosenberg:
Yes, when they state that you should remove the battery from the MacBook after you've run it down to 50%, they mean you should remove the battery from
the MacBook after you've run it down to 50%. That's _if_ you're going to store it for more than 5 months, though. If it's less, then don't remove it.
I would add that if you don't need the battery (e.g., you use your computer always plugged in to AC power), I would remove the battery as instructed and put the battery in whenever you wish to go travellin' (even downstairs). Of course it means putting the battery back in occasionally to charge it back to 50%. This should extend the life of your battery several years. It's the heat of being constantly charged and installed in the MacBook that shortens the life of the battery, as well as the number of charge cycles it goes through.
Enjoy,
On 2007-01-18 12:12:35 -0600, vix said:
i just got my first ever mac.. and i love it!!!!! much better than pc's there so like 20th century
btw vista is a copy of os x 10.5 leopard
And a purely-superficial, bad copy, at that.
And under the hood is where it really counts - Mac OS X is far ahead in its system design. Windows Vista is largely still the same old Windows under the hood, in contrast.
vix wrote:
Are you planning on storing your MacBook for an extended period?
No im not, i just got my first ever mac..
Okay, so why are you concerned about what you're supposed to do with the battery when you're storing your Mac? Nothing you quoted applies to normal everyday use.
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Mike Rosenberg:
Okay, so why are you concerned about what you're supposed to do with the battery when you're storing your Mac? Nothing you quoted applies to normal everyday use.
I think he's looking forward to the day that his battery starts to croak even though he hasn't actually *used* it (e.g., being plugged into AC power for 90 percent of the computer's life).
See my earlier post in this thread regarding a suggestion for 'everyday use'. Enjoy,
John E. wrote:
I would add that if you don't need the battery (e.g., you use your computer always plugged in to AC power), I would remove the battery as instructed and put the battery in whenever you wish to go travellin' (even downstairs). Of course it means putting the battery back in occasionally to charge it back to 50%. This should extend the life of your battery several years. It's the heat of being constantly charged and installed in the MacBook that shortens the life of the battery, as well as the number of charge cycles it goes through.
Enjoy,
--
John English
--
John English
According to the instruction book for my MacBook Pro, I am supposed to run the battery all the way down and recharge it every couple of months to 'calibrate' it. So it sounds as if it is supposed to go through
periodic charge cycles to maintain its storage capacity.
periodic charge cycles to maintain its storage capacity.
--- Brian
[email protected] wrote:
According to the instruction book for my MacBook Pro, I am supposed to run the battery all the way down and recharge it every couple of months to 'calibrate' it. So it sounds as if it is supposed to go through
periodic charge cycles to maintain its storage capacity.
periodic charge cycles to maintain its storage capacity.
That seems to work for me - I run a (non critical) video render every couple of months on battery power to fully drain the battery. I'll plug it back in when it starts whining about 'immediate shutdown' blah blah. 3 and change years, still get a good 2.5 hours casual use, and 90 minutes of a video render on battery. G4 866 12' AlBook, if that matters.
Will
[email protected] writes:
According to the instruction book for my MacBook Pro, I am supposed to run the battery all the way down and recharge it every couple of months to 'calibrate' it. So it sounds as if it is supposed to go through
periodic charge cycles to maintain its storage capacity.
periodic charge cycles to maintain its storage capacity.
I don't believe that this is intended, at least directly, to maintain its storage capacity. I believe that this process is meant to give an accurate measurement of the current storage capacity. It may well be that one use of this would be to help manage things for longer battery life.
Mac Os Download
Bill Mitchell
Dept of Mathematics, The University of Florida
PO Box 118105, Gainesville, FL 32611--8105 [email protected] (352) 392-0281 x284
Dept of Mathematics, The University of Florida
PO Box 118105, Gainesville, FL 32611--8105 [email protected] (352) 392-0281 x284
Batter-e Mac Os X
On 2007-01-19, William Mitchell wrote:
So it sounds as if it is supposed to go through periodic charge cycles to maintain its storage capacity.
I don't believe that this is intended, at least directly, to maintain its storage capacity. I believe that this process is meant to give an accurate measurement of the current storage capacity.
That's also my understanding, and is certainly more consistent with the term 'calibrate' that Apple uses in this context.
Previously, William Mitchell wrote:
[email protected] writes:
According to the instruction book for my MacBook Pro, I am supposed to run the battery all the way down and recharge it every couple of months to 'calibrate' it. So it sounds as if it is supposed to go through
periodic charge cycles to maintain its storage capacity.
periodic charge cycles to maintain its storage capacity.
I don't believe that this is intended, at least directly, to maintain its storage capacity. I believe that this process is meant to give an accurate measurement of the current storage capacity. It may well be that one use of this would be to help manage things for longer battery life.
LiIon batteries shouldn't need charge cycles; to the contrary, charge cycles shorten their life (though they do, as you point out, give the microcontroller an estimate of capacity)
The reason for the 'charge it up to 50%' thing when the battery isn't being used is because if the battery goes down too low, it won't charge at all any more. The reason for bringing it _down_ to 50% is that the battery ages faster -- much faster -- when it is full.
This page goes into all of it:
And reminds me I ought to see if my old TiBook battery is still good. --
There's no such thing as a free lunch, but certain accounting practices can result in a fully-depreciated one.
There's no such thing as a free lunch, but certain accounting practices can result in a fully-depreciated one.
With all our devices becoming wireless, it's getting more and more difficult to keep track of their battery levels. It's common to find that one of them is discharged right when you need it most simply because there is no easy way to monitor its battery status.
Batteries was designed to alleviate this issue by helping you track all your devices' charge levels from a single Mac. It works with any battery-powered Apple device, such as your MacBook, iPhone, iPad, keyboard, mouse, trackpad and AirPods. It allows you to monitor these devices' battery levels from the Notification Center, and it can even send low-battery alerts.
Sync battery level over Wi-Fi
The first thing you need to do is ensure your Mac receives battery info from your devices. On Mojave, this is done by enabling Wi-Fi sync in iTunes. On Catalina, you need to check the Show this device when on Wi-Fi option in Finder.
Once either of these steps is completed, the connected devices will now send battery information to your Mac when connected to the same network.
Monitor Apple devices' charge levels
After completing the configuration steps detailed above, you can launch Batteries and specify which devices should trigger notifications when their charge level drops below 20%. You can also disable notifications altogether.
Mac Os Mojave
Next, go ahead and add the Batteries widget to the Notification Center. From here, you can now keep an eye on each device's status and ensure you aren't caught by surprise when one of them needs to be recharged.
Monitor battery levels on a local network
Of course, this app won't be able to provide battery info for devices that aren't connected to the same network, but that's a limitation any developer would have a hard time getting around.
Batteries is a great tool if you have a bunch of devices connected to the same Wi-Fi network, either at work or at home. It will help you avoid those annoying moments when you realize your iPhone or AirPods are discharged right before you go out, and it is very simple to set up and use.