Posts:
53
From:
San Francisco Bay Area
Registered:
Apr 29, 2007
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Leopard Battery Life
Posted:
Oct 29, 2007 11:10 AM
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I have installed Leopard on my 2.4ghz Santa Rosa MBP. The battery life has not been up to par with leopard. I use to be able to get 5 hours of battery life with the brightness turned almost all he way now. I get less than 4 hours with Leopard. Anyone else experiencing this? Any suggestions? Thanks
Macbook Pro 15.4" 2.4Ghz Santa Rosa
Mac OS X (10.5)
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Posts:
32
From:
Enfield, UK
Registered:
Feb 5, 2006
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Re: Leopard Battery Life
Posted:
Oct 31, 2007 4:19 AM
in response to: Provid
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Precisely the same here - from 5 to ~4 hours after installing Leopard.
15" MacBook Pro 2.4GHz + 30" ACD
Mac OS X (10.4.10)
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Posts:
3
From:
Indonesia
Registered:
Nov 1, 2007
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Re: Leopard Battery Life
Posted:
Nov 1, 2007 11:26 AM
in response to: Provid
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Had the same problem. Battery status showing battery is draining at a very fast rate, was much better in Tiger. Hope the tech support team @ Apple will be able to figure this out soon. Got other problems as well after upgrading to Leopard, but not relevant to the said subject.
MBP 2.4
Mac OS X (10.5)
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Posts:
8
From:
Boston
Registered:
Nov 2, 2007
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Re: Leopard Battery Life
Posted:
Nov 2, 2007 8:01 AM
in response to: Provid
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My battery life is lower too - but my big problem is I get no warning. I get down to about 40% remaining charge, and the MBP just switches off - no warning, no nothing. Anyone else seen this?
MacBook Pro
Mac OS X (10.5)
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Posts:
5
From:
boston
Registered:
Oct 8, 2007
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Re: Leopard Battery Life
Posted:
Nov 4, 2007 10:53 PM
in response to: mjgrady71
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Yes! Exactly the same thing is happening to my powerbook G4 after installing Leopard. The machine suddenly shuts down with no warning when the power still says 40% or more. It then must be plugged in to charge the battery a few minutes before it will even turn on, but charges up to 100% within 20 minutes. Something's very wrong.
APPLE PLEASE CORRECT THIS ASAP!
Next question: how to uninstall leopard?
g4 powerbook
Mac OS X (10.5)
New leopard user
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Posts:
1
From:
London, UK
Registered:
Nov 6, 2007
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Re: Leopard Battery Life
Posted:
Nov 6, 2007 4:13 AM
in response to: Provid
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I noticed that, immediately, my battery life dropped off by about 30% on my firstgen MacBook Pro. Within about four days tho, my battery life has dropped from around 4 hours to around 40 mins. The first time I could see that spotlight was reindexing my entire disk and that would probably be the problem. Now, looking with coconutBattery.app I can see that the actual capacity of my battery is dropping day by day. This could be coincidence but I'm glad to see that I'm not the only with battery issues.
Macbook Pro
Mac OS X (10.5)
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Posts:
6
Registered:
Oct 4, 2007
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Re: Leopard Battery Life
Posted:
Nov 7, 2007 8:17 AM
in response to: farafield
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Holy crap!
I've realized this too! I've bought a new battery for my PB G4 a few weeks before leopard! The battery is new and in just one day (yesterday to today) max capacity has been reduced from 4359 to 4247 mAh! 
I wonder if Apple is considering to pay the damages so far, I mean, maybe with a new battery.
I have tried to reset PMU and PRAM, as suggested here http://discussions.apple.com/thread.jspa?threadID=1205661 but nothing happens....
Powerbook G4 Aluminum
Mac OS X (10.5)
Angry user
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Posts:
1
From:
France
Registered:
Nov 7, 2007
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Re: Leopard Battery Life
Posted:
Nov 7, 2007 11:49 AM
in response to: nic gibson
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Same for me, in France, immediately after installing leopard !!
Mac OS 10.5 putted my battery health down to 56% instead of 96% ! In the following hours it jumped to 74% but never recover all of his life !
Now I have a 1:30 autonomy instead of 3:30 before !! really angry !
Thank you Apple to fix that quickly !
MacBook Pro
Mac OS X (10.5)
Core2Duo 2.16ghz
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Posts:
9
Registered:
May 12, 2005
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Re: Leopard Battery Life
Posted:
Nov 7, 2007 6:02 PM
in response to: Provid
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My battery seems to be overcharging...
Here is what i saw
-Battery seemed to never charge, unplugging the power adapter and plugging it back in. The charge time would start to climb from 5:45hrs to 6:52 after a couple of minutes. The LED indicator on the battery showed only 1 LED out of 5.
-unplugged the power adapter. powered off the laptop, removed the battery, inspected the battery to make sure it wasn't leaking. Put the batter back in.
-Plugged the power adapter in, the indicator on the battery showed 1 LED. Powered up the laptop.
-Once booted, hit the battery indicator button and all 5 LED's light up.
I'm now working on battery for at least 35minutes. Indicator shows 36minutes left. I don't believe the Leopard power meter.
I'll run the battery down till the computer sleeps and then i'll reset the PMU/PRAM as described above.
I hope Leopard will not overcharge the battery till it's dead.
PB G4 1.5Ghz 1.25GB
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Posts:
14
Registered:
Jun 17, 2007
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Re: Leopard Battery Life
Posted:
Nov 8, 2007 7:41 AM
in response to: Provid
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Hi,
Same symptoms here. PowerBook G4 1.5 Ghz. A too drastic drop of maximum charge of the battery. Went from 3 hour normal usage to a minor 1 - 1.5 hour usage after installing Leopard. System Profiler Power shows a max. possible charge for the battery around 2200 mAh while a new battery would have 4400 mAh. Again I am completely aware of 'aging' batteries, but reading several cases with the same symptoms. It might be a Leopard issue here.
My battery has 153 cycles. Certainly not new, but not that old to drop 50%. And certainly not overnight after a Leopard install! Also as more users point out, this was right away after installing Leopard. Another symptom is that it shuts down without low energy warning. Though not all the time. This even has occurred when having around 45% capacity left. One time even at around 70% it just went black and dead. Restarting (on battery) gave me another hour.
I have been peaking around in some folders on Leopard. It shows that in Leopard a batteryUpdater and batteryFlasher are there, but they seem to be from the 1.3 battery update and I believe that that is for Intel machines only. And will not execute on a PPC.
I did all the tricks, zapped the PRAM, reset the PMU, with keyboard shortcuts and through Open Firmware. None of that helps. Tried battery calibration. Drained it, let it drain 7 hours (even sleep light goes off then), charged it complete when PowerBook was off and took 7 hours until the charger light went green and I left it to charge for another 5 hours. After that, same specifications. Full charge capacity: 2229 mAh
I am 100% positive this drop of Full Charge capacity for the battery started occurring only after Leopard install. Especially the shutdown without low battery energy warning looks like it is a Leopard problem in communication with battery and not so the battery itself.
If I were to point out a direction I would say the solution has to be looked for somewhere in BatteryFlasher for PPC (PB's and iBooks). Something is not right in Leopard with some of the Apple Laptops and their batteries.
Before someone might think of that. In no way would I install a system on battery power. So Leopard was installed with the charger connected and a 100% full battery. (which at the point before Leopard gave 3 hours with medium to heavy usage).
In short, looking on the Apple support pages and other internet pages it is clear this is not a 1 time occasion or a user problem. More articles show out it concerns several users that all point out "the fall" or drop of duration on battery is just too drastic and started with Leopard.
Hopefully Apple will address this issue and hopefully that is possible through an update.
Although my hopes are not high on that and a new battery is on the way as I write this. Though one thing is scaring me a bit, what if that battery also shows a lower full charge capacity than normal.
To be continued...
Message was edited by: pnutster
PowerBook G4
Mac OS X (10.5)
G4 Tower + WinXP
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Posts:
5
From:
los angeles
Registered:
Nov 10, 2007
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Re: Leopard Battery Life
Posted:
Nov 10, 2007 7:23 PM
in response to: Provid
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my mac book pro is now running at 1:30 at 100....help apple...it used to last 3-4 hours before leopard.
mac pro and mac book pro
Mac OS X (10.5)
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Posts:
6
Registered:
Oct 4, 2007
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Re: Leopard Battery Life
Posted:
Nov 11, 2007 11:36 AM
in response to: dawe
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Ok, I've been monitoring my battery capacity. I've found out that it is somehow varying between two limits: ~4250 and ~4550, that is around 4400 mAh (the max capacity for PB G4). Evidently I've read it while it was lowering, complaining for nothing.
I've recalibrated it and it seems to work fine.
BTW, PB G4 is a 32-bit one, can it be that MBP suffer the same thing some laptops suffered with Windows Vista because they were 64-bit based? 
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Posts:
1
From:
New York
Registered:
Nov 12, 2007
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Re: Leopard Battery Life
Posted:
Nov 12, 2007 8:07 AM
in response to: Provid
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I have the same problem. battery capacity went from 96% to 54% and is now currently at 51%.
I checked to see if the batteyr update was included and it is. HELP Apple!
macbook pro
Mac OS X (10.5)
2GHz Core Duo 1
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Posts:
5
From:
Canada
Registered:
Nov 15, 2007
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Re: Leopard Battery Life
Posted:
Nov 14, 2007 11:26 PM
in response to: Provid
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Leopard has made the battery life on my PB G4 12" very poor. It drains fast, and seems to reach 100% too fast. I'm loving how Leopard is running and the new features, but I really need to use my computer when I can't have it plugged in. I've also heard of some PBs that stop charging, if this happens I will be screwed. I need help.
PowerBook G4 12"
Mac OS X (10.5)
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Posts:
5
Registered:
Sep 27, 2003
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Re: Leopard Battery Life
Posted:
Nov 15, 2007 12:46 PM
in response to: Provid
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Clearly Leopard has a serious problem with reducing Mac portable battery life. My battery health has been significantly reduced since installing Leopard on my 17 G4. I think I'm going to start to wait 3 or more months to upgrade from now on. I can't believe they didn't discovery this before the release of Leopard.
I have the same problem as some others reported, severely reduced battery life. The computer just goes to sleep when it gets to around 40% charge left. I used to get easily over 3 hours, now I just unplugged and it is reporting 1:36 and my battery health is 53%, done from 68% just a few days ago when I first notice the problem.
I wonder if this a a crappy scheme by Apple to get people to buy new battery. Honestly this is a ridiculously bad problem that should have never been let out on loyal customer problems. This needs to be escalated to the newswire. Microsoft can run an add about upgrading to Leopard cutting your battery life in half. I'm concerned that Leopard has actually damaged the battery and that even if I go back to Tiger, I'll experience reduced battery life not to mention the PITA if would be to downgrade.
I unplugged at 12:33 and it is now 12:44 and I am already down to just 90% capacity left. Common Apple, we expect much better than this from you.
Leopard also screwed up my G5. After downloading updates after the initial upgrade, the Finder will not finish loading. I'll have to reinstall from scratch.
17 G4 & G5
Mac OS X (10.5)
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