IStat Pro Battery Health 100% No Way!?

iStat Pro seems to be functioning correclty I have removed and reset it, but I continues to display 100% Battery Health. It also says I am 123 Cycles in, and I have had this laptop for some time now.
1. More then likely this is not the correct information, but how do I get this widget to display the correct info?

islayer.com states...
"What is battery health?
This is a comparison between your current battery capacity and the capacity of it when it was new. For example, if your battery lasted 5 hours when it was new, a figure of 50% suggests you should get 2.5 hours out of your battery now.
As you can see, battery health isn’t something you have control over and there’s not much you can do to change the figure without buying a new battery. Don’t worry about it though, it just means that your battery doesn’t last as long as it used to."
My System Profiler States...
Battery Information:
Battery Installed: Yes
First low level warning: No
Full Charge Capacity (mAh): 5356
Remaining Capacity (mAh): 5356
Amperage (mA): 133
Voltage (mV): 12590
Cycle Count: 126
iStat Pro displays 100% Battery Health. How is this possible with almost a year of solid use and 126 cycles.

Similar Messages

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    I have the same problem with my battery (though i never had it as low as 68%). I don't think it's a problem with iStat but with the Power Managing Unit (don't take my word for it though). iStat simply says how the current amount of full charge capacity compares with what should be the optimum full charge capacity. So basically, the problem lies where your computer interprets the full charge capacity of the battery.
    I tried loads of things (including resetting the PMU and doing some hard-core calibration) but none worked.

  • MacBook Pro battery health?

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    racazu wrote:
    The "Genius" there told me that because I do not let my battery die every time I use my laptop
    That's the worst advice someone can give you. You don't have to let your computer run out of battery or you will damage more the battery. Instead, I recommend to make full cycles (discharge the battery, put it to charge when you consider necessary and charge it fully).
    Unibody Macs batteries are designed to have 80% of their capacity after 1000 charges. Read > http://www.apple.com/batteries/notebooks.html Something happens with your battery, so take the computer to an Apple Store or reseller to have the battery replaced, more when OS X is telling you that your battery has to be replaced

  • New MacBook Pro but Battery Health 97%?

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    Be aware that "health" cn be "current charge" or "max possible charge".
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    This can be downloaded from macupdate.com)
    My MBP has been powered constantly for the last few day, but has dropped to 95%.  It does this to prevent the "constant use" of the recharge circuits, and will recharge itself to 100% when it drops below 95%.  Also the max charge is more than design, but will not stay at that max charge ... it will change a litlle even rising fromover 7000 mAh occasionally.
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  • Battery Health and ways to bring it up again?

    I've had my MacbookPro for a little over two months now and 31 cycles on it. However, I have already lost 7% battery health, leaving me at only 93%. I'm pretty sure that this is not good, and that the loss shouldn't be this rapid.
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    If any other information is required, I'd be happy to provide it.
    Thank you.

    dnovelta:
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    Read these:
    http://www.apple.com/batteries/
    http://www.apple.com/batteries/notebooks.html
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    Courcoul:
    Full Charge Capacity (which is what the specific battery clocked at the factory when first tested).
    Just a minor correction, but can be significant. Full charge capacity is not "what the specific battery clocked at the factory", it's a nominal value, i.e. a general property of the battery type, not that specific battery. Specific batteries have a range of full charge capacities (when new). In fact, it's not even measured, it's calculated - for the 15", it's a 60 Watt-hour battery (from the specs), and it runs at 10.8 V (printed right on the battery). Thus, with a basic formula (W = V x A), an algebraic rearrangement, and some simple math, 60 Wh / 10.8 V = 5.555 Ah = 5555 mAh (~5500 mAh, which iStat uses as the denominator for "health", although I have read that under Leopard iStat uses 5600 mAh, just a rounding difference). My 17" with a 68 Wh battery calculates to 6296 mAh, ~6300 mAh - my replacement battery actually started with ~6800 mAh in System Profiler.
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  • Brand new macbook pro 2012 (no retina display) 95% battery health with 5 cycles? is that okay?

    I know, another battery related question. I have recently bought a brand new macbook pro (no retina display), I calibrated the battery at least twice since Ive had it and it states that I am at 95% battery health with only 5 charges. Is that normal or should I bring my macbook in to be checked? Id like to get this settled before school starts in September since I depend on my macbook a great deal.
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  • MacBook Pro 13'' late 2011 battery health problem!!! HELP!!!

    I have a MacBook Pro 13'' late 2011.
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    When did you buy it?
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  • Macbook pro 15" i7 2.2 early 2011 battery health

    Dear All
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    Is it normal ? how I can set it back to 100% again the charge level as well as the battery health.
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    yes it is normal.  Read this: http://support.apple.com/kb/TS1909.  Also, your battery does not need to be calibrated, read this: http://support.apple.com/kb/HT1490

  • Can Apple replace my macbook pro (mid 2012) retina's battery if I think that the battery health has gone bad/in need of and renewal?

    Can Apple replace my macbook pro (mid 2012) retina's battery if I think that the battery health has gone bad/in need of and renewal???
    I've had my Macbook for about 11 months now and i use it every day; its gone though about 420 cycles of charging and using the power, and i noticed the battrey preformance has decreased (as expected). The problem isn't sevear yet but it would comfort me knowing that i could replace the battery in the near future
    Please contact me or answer the question if you know anything about this!

    Exitio\'s Apple wrote:
    Can Apple replace my macbook pro (mid 2012) retina's battery if I think that the battery health has gone bad/in need of and renewal???
    No only if they think under warranty/AppleCare, but your likely able to pay for a new battery if they have them, which they might not yet since it's such a new machine still.
    BTW, I have a Early 2011 17" MBP, 27 months old, charges to 97% and has only 14 cycles.

  • New Macbook Pro 2012 Battery health.

    Hi all, hope you can give me some advice.
    I purchased a New Macbook Pro 13" (2012 model) 3 weeks ago. It has now had 11 charge cycles and the battery health has dropped to 86%. I have gone through the calibration process, reset smc/pram but sitll seems to be dropping.
    Is this normal, should i return it to apple and have the machine swapped, should i just leave it and if it gets worse get it repaired under apple care.
    Intrestingly, Battery health states the battery is 9.3 months old, from the serial number of the mac I understand that that mac was made in 3rd week of october, I just wonder if that battery has been stood arround semi-charged for 9 months and this has damaged it.
    Any help would be great, thanks
    Paul

    I would make an appointment at your local Apple Store or an AASP and have them test the battery. My battery 'life' is right on the manufacturing week of my computer. Something's up with the battery - since you're still under warranty have it checked out now.
    Good luck,
    Clinton

  • New MacBook Pro 2012 with battery health at 92%

    Hi everyone!
    Few weeks ago I bought brand new MacBook Pro (2012, 13"). After 12 cycles the battery health significantly decreased to 92%. Quite unexpected, isn't? Could you advise me what can be a problem? AC adapter, socket in my wall or something else?
    To answer your questions, I did not put the battery below 10% during this time.
    Thanks in advance for any hints!

    You have to take the computer to the Apple store to have it checked out.
    Genius Bar reservation:
    http://www.apple.com/retail/geniusbar/
    Best.

  • MacBook Pro (Early 2008) battery health drop after installing Snow Leopard?

    I installed Snow Leopard last Friday, when after the installation, I clicked my battery icon as I was looking through the new OS- and noticed that it said "Service Battery" which I hadn't seen before. So I looked in System Profiler and noticed that the maximum charge was around 3400mAh, quite a bit lower than the 5400mAh that it started with 14 months ago. So thinking that it might just be displaying incorrectly, I did a battery calibration (it was about that time anyway) as per the instructions on http://support.apple.com/kb/HT1490 and when I plugged it back in after letting it sit in sleep for five hours, it shows 2848mAh as the maximum charge. There is no way that it would have lost ~600mAh worth of charge capacity through one calibration. The battery only has 198 cycles on it, and it states on http://www.apple.com/batteries/notebooks.html that the battery is designed to have 80% charge capacity at 300 cycles. Has anyone else had this problem? Is there any way to improve battery health, short of buying a new one? Or does Apple cover batteries in cases like this?
    edit- I just noticed I posted this in the wrong MBP battery forum, but can't find a way to move it or delete it- sorry about that!
    Message was edited by: david.moore

    I installed Snow Leopard as well (made a clean install) and got the same message "check the battery". I followed the procedure on http://support.apple.com/kb/HT1490, since I had the same problem (my battery capacity was significantly low compared to the cycles, I had ~2800 mAh (60%) for only 60 cycles) and when I rebooted the computer, it even dropped down to ~2095 mAh (40%) !! *So the good advice is to _NOT follow HT1490_ advice...*
    I tried as well http://support.apple.com/kb/HT1411 but it didn't helped...
    I guess I'll have to take a meeting at Genius Bar to the closest Apple store... Did anyone got his battery replaced ? I think this is one serious issue where Apple should either :
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    2. Upgrade the battery's firmware (is there any?) or OS battery life detection
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  • How is the best way of keeping your macbook pro battery healthy

    what is the best way of keeping your macbook pro battery healthy there are so many ways what is the best way?

    Read these two Apppe articles:
    http://http://www.apple.com/batteries/notebooks.html
    http://support.apple.com/kb/HT1446
    I generally keep my MBP connected to AC as much as possible and try to make certain that at least monthly I run it on the battery to about the 40% charge level.
    Ciao.

  • Ive had my 13 inch macbook pro for less than 30 days and the battery health has gone down to 92% and the computer itself is so slow...i paid %50.00 for an OLD windows computer with 512 mb of ram and it is much faster..is this normal for mac??

    Ive had my 13 inch macbook pro for less than 30 days and the battery health has gone down to 92% and the computer itself is so slow...i paid $50.00 for an OLD windows computer with 512 mb of ram and it is much faster..is this normal for mac?? Also, apple says there is nothing they can/wil do even though i got the apple care....i mean really? $50.00 for 2002 computer with windows XP and 512mb of ram and a single core processor......faster and more usable than $1400.00 computer with 4gb of ram and dual core processor.....***???

    Willtc92 wrote:
    Ive had my 13 inch macbook pro for less than 30 days and the battery health has gone down to 92% and the computer itself is so slow...i paid $50.00 for an OLD windows computer with 512 mb of ram and it is much faster..is this normal for mac??
    obviously not.
    Ive had my 13 inch macbook pro for less than 30 days and the battery health has gone down to 92% and the computer itself is so slow...
    Give examples of how it is slow.

  • New Macbook Pro Retina 15inch is showing up as 1.9months old with 2 cycles on 'Battery Health'!?

    Hi,
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    Please advise..
    Thanks,
    P

    That is not unusual.  Note that the actual maximum charge is well above the designed level which is the most important criteria.
    Ciao.

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