Previous 1 2 3 4 5 Next 157 Replies Latest reply: Oct 28, 2010 2:43 PM by henkebarn Go to original post
  • hypo luxa Level 1 Level 1 (0 points)
    You're not understanding what I am saying. When I said "minimum quoted battery life", that means eight hours. The maximum quoted battery life would mean nine hours for the i5 and i7. Apple suggests up to 8 to 9 hours. I was suggesting that my battery life was 3 hours less than 8 hours....8 being the "minimum of the quoted battery life range". I'm sure many people agree that when you advertise a battery life under certain conditions, that you should come pretty **** close....not 40 percent less with the system under minimal load. There are others experiencing the same behavior. Believe me, I would love the extra horsepower....I perform structural component analyses with special engineering software that is probably some the most demanding software out there and I still would rather have this 13 incher over that i7. Over 2 grand for a 3 to 5 hour dead battery, apple can have it. I'll buy one in the fall or next year when they iron out ALL of the issues and get more energy efficient hardware installed in the pipeline.
  • eww Level 9 Level 9 (52,975 points)
    Is English not your native language? I don't believe any native English speaker would willfully misinterpret "up to 8-9 hours" to mean "between 8 and 9 hours" as you insist on doing. There is no stated minimum — only a stated maximum of 8-9 hours. To suggest otherwise is to make it clear that you simply can't read English.
  • paulchat55 Level 1 Level 1 (20 points)
    So let me ask this question. If It can be up to 8-9 hours, how come after charging it to 100% and I pull the power cord, it says for time remaining on battery is never more than 6 hours?

    MacBook Pro is almost 1 week old....
  • Rod Hagen Level 7 Level 7 (31,985 points)
    What do you have set as "Log-in" items in your accounts System preferences panel, Paul? Any third party menu-bar "add ons" or the like installed?

    The most common causes of this problem appear to be third party apps and background processes that invoke the discrete GPU, and therefore diminish battery life.

    Tweetie, Path Finder, Skype, 1Password, Clips, HyperSpaces, and NetNewsWire are a few that are known to do so and which are commonly set to run immediately on start-up. No doubt there are others. There is a suggestion that anything that has core animation layers set on its windows views will do so (see http://discussions.apple.com/message.jspa?messageID=11420927#11420927).

    Cheers

    Rod
  • paulchat55 Level 1 Level 1 (20 points)
    I have the following:
    growlmenu
    ituneshelper
    microsoft au daemon
    istat menus helper
  • Rod Hagen Level 7 Level 7 (31,985 points)
    Mmm, I would doubt that the first three of those would be the problem, but I'd try removing iStat Menus helper, restarting , and seeing if this makes any difference.

    Before doing this it might be worth checking which GPU is actually running by heading to Apple Menu> About this Mac > More info...>Hardware >Graphics/Displays to see if the NVidia GPU is, in fact, running straight after you boot up, though. (It should list both the Nvidia GPU and Intel integrated graphics - the one which is running is the one which indicates it has a display connected)

    While you are there in the hardware section of System Profiler, take a look at the "power' section, too, to check that the battery health information and full charge capacity are OK.

    You should also check, using Activity Monitor, for any other processes that may be chewing up CPU cycles and therefore battery charge life. (see http://support.apple.com/kb/TS1473 ) Any process using more than just a few percent of the CPU after you have booted up but before you have deliberately opened any applications (apart from Activity monitor), should be regarded as suspicious.

    Cheers

    Rod
  • lhotka Level 1 Level 1 (45 points)
    It's definitely the graphics chip - mine kicks in as soon as I fire up almost any application. I'd rather have seamless (i.e. no logout) manual switching, rather than automatic that kicks in far too often.
  • hypo luxa Level 1 Level 1 (0 points)
    You know what. I'm just trying to vent a little as many people do on these forums about issues that we may encounter with products we spend hard earned money on. I just wanted to explain the battery problems that I was experiencing with fellow forum members, that's all. Have a nice day.

    Message was edited by: hypo luxa

    <Edited by Host>

    <Edited by Host>
  • Rod Hagen Level 7 Level 7 (31,985 points)
    Yes, in many cases it is, no doubt, the graphics chip switching problem, but in others reduced battery life will involve processor hogs, or even attached bus powered peripherals and the like, just as they have always done.

    Unfortunately, as with so many things to do with computers, things that look very similar in outcome can have a variety of different causes.

    Is your NVidia kicking in immediately after start-up, or only when you run specific applications?

    Cheers

    Rod
  • paulchat55 Level 1 Level 1 (20 points)
    Hey Rod.
    after start up, activity monitor looks ok except for the kernel_task which I try to kill. (just kidding).
    battery display showed just over 6 hrs remaining.

    here is a snapshot of the battery....
    Battery Information:

    Model Information:
    Serial Number: W0014P7M3BX0A
    Manufacturer: SMP
    Device name: bq20z451
    Pack Lot Code: 0000
    PCB Lot Code: 0000
    Firmware Version: 0201
    Hardware Revision: 000a
    Cell Revision: 0157
    Charge Information:
    Charge remaining (mAh): 6752
    Fully charged: Yes
    Charging: No
    Full charge capacity (mAh): 6970
    Health Information:
    Cycle count: 3
    Condition: Normal
    Battery Installed: Yes
    Amperage (mA): -998
    Voltage (mV): 12264

    and neither display shows a display connected....

    Intel HD Graphics:

    Chipset Model: Intel HD Graphics
    Type: GPU
    Bus: Built-In
    VRAM (Total): 288 MB
    Vendor: Intel (0x8086)
    Device ID: 0x0046
    Revision ID: 0x0012
    gMux Version: 1.9.21
    Displays:
    Display Connector:
    Status: No Display Connected

    NVIDIA GeForce GT 330M:

    Chipset Model: NVIDIA GeForce GT 330M
    Type: GPU
    Bus: PCIe
    PCIe Lane Width: x16
    VRAM (Total): 512 MB
    Vendor: NVIDIA (0x10de)
    Device ID: 0x0a29
    Revision ID: 0x00a2
    ROM Revision: 3532
    gMux Version: 1.9.21
    Displays:
    Color LCD:
    Resolution: 1680 x 1050
    Pixel Depth: 32-Bit Color (ARGB8888)
    Main Display: Yes
    Mirror: Off
    Online: Yes
    Built-In: Yes
    Display Connector:
    Status: No Display Connected
  • Balance911 Level 1 Level 1 (0 points)
    I went from a late 08 duo core 2.53 with replaceable battery which regularly allowed 2.5 hours per battery (I carried two). Enamored of my associates 09 machines (all getting 4+ hours), I made the jump last week when the i7 processors came out.
    I have calibrated the battery twice and do what I do every day in terms of running apps. I have been lucky to get 1.5 hours out of this battery.
    Something is definitely wrong with the new machines - hardware or software, the problem needs to be fixed.
    I don't have the time to run snapshots of my terminal, etc, and appreciate those that are doing so.
    Apple, please make this the machine we expected.
  • SovereignOFFailure Level 1 Level 1 (0 points)
    this describes my computer exactly i am wondering if your problems subsided once they changed out your battery or if at least they solved your issues. I am also getting about 3 and 1/2 hours out of my MBP with light use, screen brightness at about 25% no keyboard light and only running simple tasks. I tested it running a hulu vid and the underside became alarmingly hot i am thinking this is definitely a battery issue, as my expected times are also wonky to the point of seeming like a hardware/software malfunctions.
  • paulchat55 Level 1 Level 1 (20 points)
    I ended up removing all the entries from my startup and it kicked down to the integrated card...

    Intel HD Graphics:

    Chipset Model: Intel HD Graphics
    Type: GPU
    Bus: Built-In
    VRAM (Total): 288 MB
    Vendor: Intel (0x8086)
    Device ID: 0x0046
    Revision ID: 0x0012
    gMux Version: 1.9.21
    Displays:
    Color LCD:
    Resolution: 1680 x 1050
    Pixel Depth: 32-Bit Color (ARGB8888)
    Main Display: Yes
    Mirror: Off
    Online: Yes
    Built-In: Yes

    and then the remaining time on the battery went up to 9 hrs.
  • Rod Hagen Level 7 Level 7 (31,985 points)
    Sorry paul, I should have been clearer with my instructions. The fact that the Nvidia is shown as "on line", and "Built in" says "yes" in your first data post indicates that the NVidia is the card in use at that time.

    Cheers

    Rod
  • Rod Hagen Level 7 Level 7 (31,985 points)
    paulchat55 wrote:
    I ended up removing all the entries from my startup and it kicked down to the integrated card...

    ...

    and then the remaining time on the battery went up to 9 hrs.



    THat's very interesting, Paul.

    I'm sure you are completely fed up with messing with this stuff, but the interests of fellow Mac users and plain curiosity compel me to ask whether you have thought of adding them back one at a time to see which of them it was (or they were) causing the graphics switch. My bet is still on iStat menus, but I'm far from certain.

    Cheers

    Rod
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