91% capacity at 14 cycles?

Hello,
I have had my MacBook Pro for exactly one month and haven't used it for more than a few hours per day.
Before I even purchased the Mac I read the battery care instruction and have been following them, but installed coconutBattery the other day and noticed a battery capacity of 91%.
I have just finished a battery calibration following the instructions on the Apple website, but it has remained at 91%.
Battery Information:
Model Information:
Serial Number: 9G95001U68VPC
Manufacturer: DP
Device name: bq20z451
Pack Lot Code: 0000
PCB Lot Code: 0000
Firmware Version: 0003
Hardware Revision: 0002
Cell Revision: 0100
Charge Information:
Charge remaining (mAh): 5000
Fully charged: Yes
Charging: No
Full charge capacity (mAh): 5000
Health Information:
Cycle count: 14
Condition: Normal
Battery Installed: Yes
Amperage (mA): 0
Voltage (mV): 12501
Does this sound right? Is there anything I can do to sort it out?
Thanks,
Jay

Thanks eww,
I presume you mean to an Apple store? I brought it online, is that ok?
Also, its it likely to be fixed on the same day because my nearest Apple store is miles away! It is a massive inconvenience, especially when I have just paid out a grand for it
Thanks again

Similar Messages

  • X301 42T4520 LiPo down to 63% capacity after 125 cycles

    Hi everybody,
    subject says it all - is this normal?
    TiA,
    Florian

    Hi Florian
    Try having a look here: http://www.batteryuniversity.com/parttwo-36.htm
    It seems a down of 63% of the capacity after 125 cycles is pretty under the normal level.
    Did something happenened to the battery (left in a hot place, etc.)?
    Occam
    600, R52, T61p, X301

  • Battery Capacity after 3 cycles

    Hi all,
    I have a late 2013 rmbp. I've been reading up a lot on how to best treat the built in battery to maximize battery life. This laptop is only 1 week old and I've discharged once to about 40% and used the unit on batter a second time to about 50%. I'm now planning on using it on the power adapter mode when at my desk and using it on battery mode when going mobile. My question is though is that according to my coconut battery app, I'm already only at 97% max capacity! Is this normal? This battery has only been through 3 cycles of charging.
    The max charge went from 6330mAh to 6153mAh in the 1 week I've owned this computer. Since I'm new to the macbook world, I was wondering if this is normal and was hoping someone could give me some insight to how fast the Max Charge capacity drops over time in relation to the Design Capacity. I'm still within my return period if I need to return this computer :/
    For reference, my battery was manufactured 4/24/2014.
    many thanks!

    Read: https://www.apple.com/batteries/
    This laptop is only 1 week old and I've discharged once to about 40% and used the unit on batter a second time to about 50%. I'm now planning on using it on the power adapter mode when at my desk and using it on battery mode when going mobile. My question is though is that according to my coconut battery app, I'm already only at 97% max capacity! Is this normal? This battery has only been through 3 cycles of charging.
    The max charge went from 6330mAh to 6153mAh in the 1 week I've owned this computer.
    It's best not to concern yourself with this degree of detail. Over a long period of time, its maximum charge capacity will decrease. Over a shorter period of time its maximum charge capacity may decrease or increase. One week and three charge cycles is not enough to draw any conclusions about anything. Typically, the maximum capacity percentage will settle to a value in the mid - 90s and will stay there for a long time.
    Your MacBook Pro's battery is the product of decades of research and is going to last for years, perhaps for as long as you own your Mac, or want to own it before it eventually becomes functionally obsolete.
    All batteries are wear items that will eventually need to be replaced. Budget 50¢ a week for battery depreciation and you will have more than enough saved to replace it when the time comes.
    I'm now planning on using it on the power adapter mode when at my desk and using it on battery mode when going mobile.
    That's a fine strategy. Follow Apple's usage recommendations, but don't obsess over such minutia. On the other hand if you are seeking to indulge your paranoia concerning over- or under- charging your Mac, the proper methods by which you must obsess about its incessant need for proper care and pampering, and to hear admonishments about the a parade of horribles that will result in your failure to acquiesce to superstition and myth, your needs will be met in by a number of charlatans in a variety of fonts and garish colors. You will believe them because they will validate what you have already decided to be true.

  • 1% battery charge capacity at 146 cycles

    Problem started around december 2010 with macbook turning off at random percentages, generally between 70%-90%, after putting up with it a while, i took my macbook to the genius bar where he told me he couldn't see anything particularly wrong with it as far, however I should try re-calibrating. After going home and doing this, my battery info went down to about 1% charge capacity, a shocking 60 or so mAh. That's when I found this post - http://discussions.info.apple.com/message.jspa?messageID=13165866
    Basically the battery update 1.3 was made for macbook pro 15" and not macbook 13"
    see - http://support.apple.com/kb/HT1403
    I looked and found my computer did indeed have battery update 1.3, and so, following the articles advice I deleted.. rebooted and yes my battery capacity went up to 80% not amazing, but reasonable. The battery was running through cycles fine, fully charging and running all the way down without turning off randomly for a couple weeks until... it started turning off again.
    Now I've noticed the charge capacity is back to 68mAh, I've tried installing all the battery updates available, however none will install as computer says they aren't needed.
    Anyone else having the same problems return? I don't know if they have anything to do with a system update which I installed a couple days ago.
    macbook is well out of warranty having had it for 28 months now (bought late 2008) however 146 cycles is a bit low to warrant such a low capacity, and the fact that deleting that file fixed the problem even temporarily leads me to believe the problem isn't completely with the battery.
    battery info -
    Model Information:
    Serial Number: SMP-bq20z951-3979-d7c
    Manufacturer: SMP
    Device name: bq20z951
    Pack Lot Code: 0000
    PCB Lot Code: 0000
    Firmware Version: 002a
    Hardware Revision: 000a
    Cell Revision: 0100
    Charge Information:
    Charge remaining (mAh): 68
    Fully charged: Yes
    Charging: No
    Full charge capacity (mAh): 68
    Health Information:
    Cycle count: 146
    Condition: Check Battery
    Battery Installed: Yes
    Amperage (mA): 0
    Voltage (mV): 12477

    It really sounds like you just need a new battery. With your machine being 28 months old and having only 146 cycles on the battery, this would mean that you're going through a cycle about every two months. The cycle count accounts for only part of a battery's longevity. It's important to use the battery regularly to keep it healthy. Going through a cycle a week or so is generally reasonable usage to keep the battery healthy... even a cycle every two weeks is okay. You just need to use the battery to keep it in good shape. Going through roughly one cycle nearly every two months would seem to indicate that you ran the machine plugged in nearly all the time. That's not the best way to keep your battery healthy. Here are Apple's suggestions on maintaining your battery:
    http://www.apple.com/batteries/notebooks.html
    Erratic readings are not uncommon for a failing battery. The fact that it seems to work okay at times does not mean it can't be failing.

  • 85% current capacity after 4 cycles in Macbook Pro Retina.

    Is it normal that I have only 85% current capacity after just four cycles in Macbook Pro with Retina Screen? A little bit over 7140 mAh compared to 8460 mAH in design capacity?
    Should I call Apple Support?

    Hey Allan,
    Greetings!
    Yes you rightly pointed out the changed format
    And I have been around for a few years but mostly get active whenever I purchase a new Macbook. you know how the honeymoon period is
    Unfortunately I am experiencing two difficulties myself which I haven't been able to figure out.
    I have this late 2013 Macbook pro Retina, 13". Purchased it 20 days ago!
    Now the two problems are
    1. Safari sometimes doesn't load some pages and apple.com being one of them. Again as I read somewhere when opened on the Chrome and then back on safari almost at the same time, safari pulls it up.
    I dont prefer other browsers as my battery discharge becomes rather quick on chrome doing the same task.
    Do you hav any idea what might be wrong. I tried switching of all extensions and plug ins. Also did a few resets.
    Read somewhere that it has to do something with the DNS of the router but then why this erratic behaviour and not a consistent one.
    2. My battery is also showing erratic behaviours. The max health varies between 6350 to 6673 (Didn't see the later for last few days). Also the life the system predicts vastly varies doing the same tasks. Sometimes if I am reading a page online it would show 14 hours on 100% and sometimes just 7-8.
    The worst part is that the it just doesn't show it that way rather behaves the same way. That means that battery actually drains at the rate the sytme predicts.
    Also even in shut down (and not sleep), the system tends to use charge at a rate of 1% per 8 hours.
    All this mentioned in the paint 2 started happening when my machine got drained to 1% power remaining once and the other time was shut down as I was travelling and didn't have the charger. Is that to blame?
    Any input would be appreciated.

  • Battery at 55% Capacity with 339 cycles - Acceptable?

    My battery is at 55% capacity (3027mAh compared to original 5500mAh) with 339 cycles. Battery is 18 months old. Is this about normal or is my battery showing a little more wear than it should?

    According to iStat, here are my stats:
    Cycle count: 807
    Health: 98%
    Condition: Good
    Full charge capacity (mAh): 4903
    Yes, you read that right. 800+ cycles and still in wonderful health. She gets about 2.5 hours of hard use on battery and can still get over 4 hours without wifi & bluetooth. As a college student who uses my mac w/o it plugged in daily in class, I get at least one cycle put on it a day. Obviously it isn't truly about the "cycles" but in how you manage your use. I hardly ever turn my mac off, she sleeps at night with me. I do manage my power wisely with iStat and Fan Control. Helps me maximize the time I can pull out of the battery. I'll drain the power to under 10% every time. At least once a week, if not more, I'll let her black out on me before I resuscitate her with outlet power. Here and there, when she blacks out, I'll just close the lid and await her till morning to give her power. This will completely drain even the reserve battery. I laugh when I do this because it takes my mac about 10 to 15 minutes till she says 1%. I know I probably sound like a lunatic, but what I been doing has obviously worked, so I can't imagine it not working for you. Go crazy and drain your mac a couple times in a week and I bet you'll see a good improvement. Oh, I never leave my mac plugged in when it's at 100%... so take that for what it's worth.

  • Workcenter with no of capacity 10

    Hi
    I have one work center with no of capacity 10
    i have cycle time for one operation with say only no of capacity as 1 = 15 sec
    do i have to change cycle time also when i am changing no of capacity from 1 to 10
    I mean how the calculation would take place , available capacity OR Load
    Is it must to use split with this ??
    Please help in this regard
    Regards
    Amit

    Hi,
    Suppose the production order qty is 10 no. With No. of individual capacity=1, the cycle time is 15 sec for 1 no.So the total processing time is 150 sec (15*10).  When the same operation is executed in 10 Capacities, the work is splitted equally to all the 10 capacitites and hence the total processing time will be 15 sec for producing 10no with 10 individual capacities. For this maintain the formula for scheduling as the SAP standard formula SAP002.
    Now your available capacity is 10 with the operating time as per the shifts defined. If one capacity works for 8 hrs, then the available time for this work center will be 80 hrs (8*10) with 10 individual capaciities.
    For this, maintain no. of individual capacity=10 in Work center capacity header.  In routing, maintain No. of splits=10 with the Check box "Required splitting" checked.
    Hope this helps for your requireemnt.
    -Thaila Shree

  • What's the average cycle count and lifespan of a PB G4 battery?

    I've had my computer 15" Powerbook for about 22 months. Cycle count =367. My AppleCare warranty ends in about 14 more months. What's the average cycle count before the battery dies?
    By the way, I use my computer everyday. This thing better than any other macbook pro out there. Thanks.

    First, you should know that Applecare doesn't cover the battery, it is specifically excluded unless it's defective. That's because Apple considers the battery a consumable item. You can read it under limitations at http://images.apple.com/legal/applecare/docs/AppleCareProtect_Plan_NAen.pdf
    Regarding the life, how you maintain the battery has an impact on how many cycles you get out of it. For example, if it's plugged in all the time, your cycle count will be low by the time the battery fails. Apple says that a properly maintained battery should be at 80% capacity after 300 cycles. This is the Apple note on battery maintenance: http://www.apple.com/batteries/notebooks.html

  • Concerned about falling battery capacity on rMBP

    Hello all, I'm starting to worry a bit about my battery capacity vs design capacity on my retina macbook pro 15". It's a early 2013 model that I bought in July. I know that apple guarantees the battery will have at least 80% of it's design capacity after 1000 cycles, but I'm worried mine is going to fall far short of that. Here's my coconut battery info:
    As you can see, I've only had 60 cycles on the battery, the computer is barely half a year old, and it's already down 6%, under 8000 mAh. Should I be concerned/take it to the apple store? I know they won't replace my computer since I'm far outside of my 14 days, but still wondering if they'll do something. Will they even do anything before the battery falls below 80% design capacity?
    I waited to post because I know battery capacity often fluctuates from 5% below to 5% above design frequently and will go up and down with use, but mine has steadily decreased, and has never increased. Every time I check coconut battery, it's 10-50 mAh lower than it was. My macbook does stay plugged in a lot, but I also make a point of using the battery at least once a week to keep the electrons flowing, and most weeks it gets off the charger more like two or three times. Often the battery will get used down to at least 50 or 60 percent before it gets plugged back in, sometimes even as low at 15 or 20 percent. I've tried draining it until it goes to sleep and then letting it charge to full again, but it didn't change anything. I didn't think it would, since lithium based batteries don't suffer memory issues, but I thought maybe it was just an error in measurement by the system.
    Speaking of that, I did reset the NVRAM/PRAM and the SMC (multiple times). Only one of the times I reset the SMC did the light turn orange and then charge more, but it didn't change the max capacity number at all.
    I see a lot of people posting their cocunut results/system information screen and finding they actually have above design capacity. Did I just get a lemon battery, or is it because I have it plugged in so much?
    Thoughts? Thanks!

    Apple guarantees that if your battery is well taken care of and not abused,  however your battery looks fine.
    You state: ~ As you can see, I've only had 60 cycles on the battery
    Cycle counts dont account for much.  People (some) leave their macbooks always hooked on power and worse still in sleep mode and on power and this can ruin a battery in "50 cycles", ergo it means little.
    As for the 5% power fluctuation this means absolutely nothing since charge is just an estimate and the 5% is within that range.
    Information:
    Bad discharging or battery use conditions:
    Heat (due to environmental conditions or due to rapid discharges from heavy use = gaming / video editing)
    Rapid discharging of the battery frequently causes chemical changes over time in the battery leading to decrease capacity and resistance of current flow.
    The very worst use of your battery is often draining the battery very low, and worse still letting it remain in such a state.
    *Most long-term rapid damage to the battery occurs from discharging it with high loading (gaming) conditions but paramount is avoiding deep and frequent low DOD (depths of discharge) in use.
    Undesirable charging or charged conditions:
    High perpetual SOC (state of charge), where the battery is always or very often connected to charge
    Parasitic loading where the battery is both usually on and charging or worse both always charging and in sleep mode, since this induces mini-cycling of the battery.
    Bad general handling conditions:
    Temperature use conditions when either too hot (95F and above) or too cold (50F and below)
    Storing your battery away with a low charge (40% and less) long-term.
    Considerations:
    Your battery is subject to chemical aging even if not in use. A Lithium battery is aging as soon as its made, regardless.
    In a perfect (although impractical) situation, your lithium battery is best idealized swinging back and forth between 25 and 85% SOC (state of charge) roughly.
    Further still how you discharge the battery is far more important than how it is either charged or stored short term.
    Ultimately counting charge cycles is of little to no importance.  Abuse in discharging (foremost), charging, and storing the battery and how it affects battery chemistry is important and not the ‘odometer’ reading, or cycle counts on the battery. 
    Everything boils down to battery chemistry long term, and not to an arbitrary number, or cycle count.
    Keep your macbook plugged in when near a socket since in the near end of long-term life, this is beneficial to the battery.
    http://www.apple.com/batteries/notebooks.html
    "Apple does not recommend leaving your portable plugged in all the time."
    General rule to remember of Lithium batteries is:
    Never drain them LOW  & dont always/often store them HIGH
    While cycle count is commonly seen to be the “miles” on your Lithium Ion pack cell in your Macbook, which they are, this distinction is not a fine line at all, and it is a big misconception to “count charge cycles”
    *A person who has, for example, 300 charge cycles on their battery and is recharging at say 50-60% remaining of a 100% charge has better battery usage and care than another person who has 300 charge cycles at say 15% remaining on a 100% charge. 
    DoD (depth of discharge) is far more important on the wear and tear on your Macbook battery than any mere charge cycle count.  *There is no set “mile” or wear from a charge cycle in general OR in specific.    As such, contrary to popular conception, counting cycles is not conclusive whatsoever, rather the amount of deep DoD on an averaged scale of its use and charging conditions.
    (as a very rough analogy would be 20,000 hard miles put on a car vs. 80,000 good miles being something similar)
    *Contrary to some myths out there, there is protection circuitry in your Macbook and therefore you cannot overcharge it when plugged in and already fully charged
    *However if you don’t plan on using it for a few hours, turn it OFF (plugged in or otherwise) ..*You don’t want your Macbook both always plugged in AND in sleep mode       (When portable devices are charging and in the on or sleep position, the current that is drawn through the device is called the parasitic load and will alter the dynamics of charge cycle. Battery manufacturers advise against parasitic loading because it induces mini-cycles.)
    Keeping batteries connected to a charger ensures that periodic "top-ups" do very minor but continuous damage to individual cells, hence Apples recommendation above:   “Apple does not recommend leaving your portable plugged in all the time”, …this is because “Li-ion degrades fastest at high state-of-charge”. This is also the same reason new Apple notebooks are packaged with 50% charges and not 100%.
    LiPo (lithium polymer, same as in your Macbook) batteries do not need conditioning. However...
    A lot of battery experts call the use of Lithium cells the "80% Rule" ...meaning use 80% of the charge or so, then recharge them for longer overall life.
    Never let your Macbook go into shutdown and safe mode from loss of power, you can corrupt files that way, and the batteries do not like it.
    The only quantified abuse seen to Lithium cells are instances when often the cells are repeatedly drained very low…. key word being "often"
    The good news is that your Macbook has a safety circuit in place to insure the battery doesn’t reach too low before your Macbook will auto power-off. Bad news: if you let your Macbook protection circuitry shut down your notebook at its bottom, and you refrain from charging it for a couple days...the battery will SELF-DRAIN to zero (depending on climate and humidity)…and nothing is worse on a Lithium battery being low-discharged than self-draining down to and sitting at 0
    Contrary to what some might say, Lithium batteries have an "ideal" break in period. First ten cycles or so, don't discharge down past 40% of the battery's capacity. Same way you don’t take a new car out and speed and rev the engine hard first 100 or so miles.
    Proper treatment is still important. Just because LiPo batteries don’t need conditioning in general, does NOT mean they dont have an ideal use / recharge environment. Anything can be abused even if it doesn’t need conditioning.
    From Apple on batteries:
    http://support.apple.com/kb/HT1446
    http://www.apple.com/batteries/
    Storing your MacBook
    If you are going to store your MacBook away for an extended period of time, keep it in a cool location (room temperature roughly 22° C or about 72° F). Make certain you have at least a 50% charge on the internal battery of your Macbook if you plan on storing it away for a few months; recharge your battery to 50% or so every six months roughly if being stored away. If you live in a humid environment, keep your Macbook stored in its zippered case to prevent infiltration of humidity on the internals of your Macbook which could lead to corrosion.

  • Battery Life - MacBook Pro - 403 Cycles?

    I bought my MacBook pro in 2009 and we have a great relationship. It's a refurbished model so I wonder if there was something wrong with it from the beginning.  I have gone through two batteris and they are both total garbage.  When I unplug it, it only lasts like 15 minutes. With iStatPro, it says I have 12% health and 403 Cycles.  Any suggestions for what to do?  I don't really want to buy a new battery and I want to be able to use this laptop without being a desktop.
    Thanks!

    If your MBP has a bottom cover made up of a large back section that's screwed on and a smaller front section that is easily unlatched and removed to change the battery, its battery is expected to retain 80% health (80% of its original Full Charge Capacity) after 300 cycles if properly maintained, and beyond that all bets are off. Battery health typically falls off pretty sharply after then. If you have one of these batteries, it has given you the service it was designed to give, and you have no cause for complaint about it.
    If your MBP's bottom cover is one piece, it has a built-in battery that you aren't supposed to remove yourself, and that battery is expected by Apple to retain 80% health after 1000 cycles. If you have this type of battery, it has failed prematurely, and your disappointment in it is understandable. Take it to an Apple Store and ask to have it tested for defects. If it is found to be defective, Apple may replace it free of charge. Your chances of a favorable outcome will be best if you are calm and polite. good luck!

  • X201 (6-cell)ba​ttery issue with windows 7 - massive drop in capacity

    Appologies in advance for the long post.
    Im running a thinkpad x201 on windows 7 and have recently had a major problem with the battery capacity.
    The story is that id been running the laptop with no issue at all for about 9months. As it is curently my main system I upgraded the harddrive and reinstalled windows. For whatever reason when reinstalling windows it rejected my product key even after checking and re-checking the key.
    I eventually gave up trying and just started using the system under installs grace period. After the install i made a point of checking the system stats to see that everything was running okay with the new hdd and noted the battrey was still at 94% of its original capacity(pretty good after 9 months!) . There was no noticable difference in performance and i was still getting 4.5+ hours out of the 6-cell battery.
    This continued until the grace period expired on the windows install. After a few days I noticed that my system was running much hotter than usual and the battery didnt seem  to last as long. When i re-checked the battery capacity it was down to 78%. I could only assume that it was somhing to do with the windows install as there had been no problem until the validation expired, so naturally i immediately went through the activation procedure and it accepted the product key first time(go figure). After this the system returned to 'business as usual' temperature wise however the battery capacity continued falling and has now gone from the 78% to just 4%(!) in under three weeks.
    Ive found online that on release 7 had a problem with laptop battery life but the issue has apparently been fixed. Ihad been using the laptop under the factory 7 install for 9 months with absolutely no issue, and for a further month with no noticeable difference after the install. However i doubt that the issue can really be anything else as it seems just a little too coincidental that the problem arose at exactly the time of the activation failure. I cant believe that after such excellent performance that the battery would die so quickly on its own.
    So my question is does anyone know what on earth has happened here or has anyone experienced anything similar? Furthermore what if anything could anyone suggest just what i should do about this issue and if anything could be done to rescue the battery. Perhaps another install & reactivation of windows could possibly solve the issue there(if there is any). 
    Its gotten to the point that the laptop dies immediately when unplugged and i cant even run the battery reset tool as this also results in immediate shutdown. Ive also tried charging the battery on its own from ny ultrabase but same thing - it takes about a minute to say its reached 100% but then theres not even enough power to turn the system on. Im very reluctant to get a new battery at this point as i fear it may also become trashed in a month or two.
    Interesting problem so ill leave it for the boards to decide what my best option may be. Ive removed the battery for now as obviously the cycle count has been increasing fairly rapidly since capacity fell below 10% in case theres a chance to save it. For reference these are a few key details of my battery as read from the ThinkVantage power manager:
    Full charge capacity: 2.21Wh
    Cycle count: 290
    Manufacture date: 2010-08-12
    Serial Number: 827
    Design Capacity: 62.16Wh

    lord_winston wrote:
    I cant believe that after such excellent performance that the battery would die so quickly on its own.
    [snip]
    Cycle count: 290
    290 cycles is getting to pretty much the end-of-life for a LiOn battery, so whether you can believe it or not, the outcome is entirely predicatable.
    Batteries are consumable items and you've had better-than-average run from yours, until close to end-of-life.
    Cheers,
    Bill
    I don't work for Lenovo

  • Battery health 96% with only 18 cycles

    A month ago I bought a brand new unit of the last version of the old 17" model. iStat Pro recognized the battery as new with 100% health. 30 days later it shows 18 cycles and 96% health. To what extent this information is trustworthy? Can I ask for a replacement if that fast aging process continues?

    Don't worry about it too much. My battery's capacity level swings several percentage points even if I check it at different times during the same day. You will probably find that the deterioration rate will not continue linearly, but will stop and even reverse at times.
    Battery readings fluctuate normally because a battery is made up of many cells that all behave slightly differently and deteriorate at different rates. It's hard to accurately track/predict the performance of all of the cells as a group; the number is always more like an estimate.
    Apple has a standard that its batteries should retain 80% capacity after 300 cycles. Apple might not replace the battery until you can show that the battery is going to fall short of it at that time, and it takes about a year to get to 300 cycles.

  • Battery life past 300 load cycles?

    I've got this battery from a recall about a year and a half ago (not sure exactly when). It has 319 load cycles and I have noticed that I have only been getting about 45 mins to a charge, down from about 3 hours. Right now the current capacity is at 1659 mAh down from 4400 mAh, 37% of the original capacity.
    Is it unusual for a battery to be this low already? I feel like I just got the thing.

    For some reason, there have been a number of people posting that their recall batteries are short lived. Typical recommendation is to return it to Apple, to see if they'll do anything. They do consider the battery to be a consumable item, and with 319 cycles on it, they may not be inclined to replace it. However, you don't know if you don't ask. The Apple note on battery maintenance says a well-maintained battery should retain 80% capacity after 300 cycles. Here's the note: http://www.apple.com/batteries/notebooks.html

  • Higher capacity replacement battery?

    Firstly I'm very dissapointed that I am having to purchase a new battery but my current one barely lasts for 20 minutes. I have recalibrated and also downloaded coconutBattery to find out the loadcycle and current capacity. They read as 236 loadcycles and a current capacity of 553mAh (it was 4200mAh when new!). Now Apple says that it should continue to run at around 80% of it's original power after 300 cycles but that's simply not true!
    Anyway, enough moaning. I need to purchase a new battery and wondered if there were any batteries that offered a greater capacity than the original 4200mAh? If so, where can I get hold of one (preferably in the UK)
    PowerBook G4 1gig / 1.25G RAM   Mac OS X (10.4.7)   120gb WD Scorpio Drive

    Now Apple says that it should continue to run
    at around 80% of it's original power after 300 cycles
    but that's simply not true!
    You left out an important point that Apple makes, which is thtat a properly maintained battery should retain 80% capacity after 300 charge/discharge cycles. For example, if someone left the PB plugged in all the time, and didn't deep discharge the battery at least once a month, they wouldn't get the 80% capacity after 300 cycles. Not saying that you did that, only that there's an important qualification on that Apple statement.
    If I was going to consider a non-Apple battery, I'd look at the battery sold by OWC which others have already mentioned, at http://eshop.macsales.com/shop/powerbook/battery/g4-12inch-aluminum/
    Another source for a replacement is duracell direct. I have no experience with their replacement, however, they have free shipping and a 10% off coupon shown at the top of the web page at http://www.duracelldirect.com/applepowerbook-g4-12_batteries_laptopb-5904.aspx

  • 2008 Refurb MBP battery capacity

    Hi all...I recently had to return my mbp battery when it crapped out, and i'm currently using the replacement (thanks apple)...I've been regular with calibration etc. (did it as soon as the battery was installed)...What I didn't do was check the initial capacity. my current cycles/capacity is 52/4742.
    Based on what I've been reading around here with people having 5500-6000 mAh full charge capacity, am I wrong in thinking mine seems low, or is it ok for the charge cycles?
    Thanks for any help!

    The nominal Full Charge Capacity of your battery is about 4650mAh, and it's currently indicating more than that — which is commonplace. The battery in my own 5,1 was still pretty consistently above its nominal capacity after nearly 100 cycles and a full year of use, averaging out the normal small up-and-down fluctuations from one day or week to another. So you've got a good battery.

Maybe you are looking for

  • JMS tomcat problem

    Hi, I have Tomcat 4.0.3 and a J2EE 1.3.1 reference implementation server. From the tomcat server, I am trying to publish into a topic that is on a remote machine. However I get the exception javax.naming.NameNotFoundException : Name TopicConnectionFa

  • The dependency 'BusinessObjects.Enterprise.Sdk' could not be found.

    Hi, Can anyone help me solve this problem, its my first time using crystal reports i have installed VS 2003 and Crystal report XI professional Edition, i am trying to run the system but it is complaining about the BusinessObjects.Enterprise.Sdk not f

  • Feature request: Allow direct connections for contacts only

    Hello, on Windows there is an option "Allow direct connections to contacts only" as described on http://en.kioskea.net/faq/32357-skype-hide-your-ip-from-people-who-are-not-on-your-contact-list. Many people including myself would like to see this feat

  • Request status in Fail over

              Process to Find request status if fail over happen in middle of some request at           application level, because I need this to do control at application level. Some           will help me in this issue.           

  • What is "delete rendered files'

    What does the delet rendered files on closing a project in the prefences mean. Is it a good thing to have checked or not. I checked the user manual and it say nothing about it. Nathan