Any good freeware battery tester for the Macbook?

I searched for battery tester on versiontracker and there are no results. I saw the genius bar used an ipod nano to test my battery. I wonder if anybody knows a good downloadable battery tester for Macbooks.

In addition to that link (which is very good) there are two popular applications I see a lot of members post about:
Coconut Battery Monitor (http://www.coconut-flavour.com/coconutbattery/index.html)
iStat Pro (http://www.islayer.com/apps/istatpro/)
The iStat widget is a system monitor, that includes a portion on battery health.

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  • HT4110 What is the best battery setting for the MacBook Pro 13 Retina display?

    I want to know the best setting for the battery for the MacBook Pro 13 Retina display.

    To add just a little
    Keep it plugged in when near a socket so you keep the charging cycles down on your LiPo (lithium polymer) cells / battery, but not plugged in all the time. When not being used for several hours, turn it off.
    And best "tip" is if its near a socket,...plug it in as long as you can (especially at home) since cycle count on the battery are the "miles that wear out the tires (battery)", however again, not plugged in all or most of the time.
    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"
    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.
    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 20 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, and more important long term that cycle counts.
    Ultimately counting charge cycles is of little 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 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.
    Peace

  • Any experience with Lojack software for the Macbook?

    Good? Bad?
    I understand it's not a perfect security solution. What I'm worried about is whether it will screw something up unexpectedly.
    Anybody used this app. on their Macbook?
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    May I suggest Undercover from Orbicule. I will be installing this on to my own personal MacBook, and have also heard good reviews about it.
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  • How can i get or download the apple hardware test for a macbook pro made in 2012 running Mavericks 10.9.3

    Does anyone know how can i get or download the apple hardware test for a macbook pro made in 2012 running Mavericks 10.9.3. Thanks.

    Sean and Andy -
    I have to agree with Andy here. I am having the same problem on a mid 2010 MBP (6,2). I have already read the AHT info provided by Sean's link, and they are less than helpful. I'm sure they will be helpful to those who find that they work, but they are confusing if this is not the case. For example, my MBP(6,2) came with ONE (not two) installation disks, so the instructions don't work for me. Another issue is the instructions confound the descriptions related to the MBP, the original (delivered) software (OS X version), and the current installed OS X upgrade software.
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         (B) I have checked my firmware versions and they are all up to date, as per Apple's information.
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         (E.1) When I re-start holding down OPT-D, I get a spinning globe, and then it prompts me for a network (wi-fi) connection.
         (E.2) For some unknown reason, the prompt identifies between 2 and 5 of my --neighbors'--  routers, but does not show mine. (??!!)
         (E.3) The routers are listed alphabetically; however, my router SHOULD be at the top of the list by this criterion, but it is nowhere to be seen.
         (E.4) The 'internet recovery' process then allows me to enter a network name AND password. I do this, for my current wi-fi router, and the process rejects it as an incorrect login ID. It is NOT an incorrect login ID! 
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    Any advice would be appreciated!  TIA.
    Ed

  • I'm traveling to London for the summer, does anyone know a good power adapter/converter for my MacBook Pro?

    I'm traveling to London for the summer, does anyone know a good power adapter/converter for my MacBook Pro? I know there's the Travel Adapter Kit but it's only for iPhones, iPods, iPad, etc.

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  • What is Apple's official plan for future battery replacement in the Macbook Pro with Retina Display?

    What is Apple's official plan for future battery replacement in the Macbook Pro with Retina display?

    No one here works for Apple nor does Apple visit this message board.  We are all end users like yourself helping each other out. 
    "Official" Apple "replacement" announcements will be listed on their website and possibly on their Knowledge Base website.
    Check the All Programs website too.

  • How will an external Hard drive designed for the macbook Pro work with my White Macbook?  My  white macbook has a Firewire 400 and the G-Tech HD has a 800 to 400 compatible cable for the firewire.

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    As far as I know, if a harddrive works with a Macpro, it should work with the Macbook: if your Macbook is low on power, plug in the AC adapter
    If your Macbook has a firewire port, then it should be fine. BUt i would do somemore research first.

  • Please update the specs for the MacBook Pro - 8GB RAM Max

    Hello,
    Someone needs to upgrade the specifications for the MacBook Pro now that 4GB laptop SoDIMMs are shipping and compatible with the MacBook Pro.
    See my blogpost on the subject at http://blogs.technet.com/keithcombs/archive/2008/07/05/testing-my-apple-macbook- pro-with-8gb-of-ram.aspx.
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    Keith Combs
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    Hello again,
    Regarding having them update the specs, one can dream. Dreams are free. LOL. Hopefully the memory makers will update their specs as more makers start supporting a large memory configuration.
    The 4GB sticks I am using are http://shop.kingston.com/partsinfo.asp?ktcpartno=KTL-TP667/4G
    I did not do an extended test of the sticks in my MBP. Their home is in the ThinkPad I have because it is running Windows Server 2008 with Hyper-V.
    As you can see from the link above, these little suckers are pricey. But consider the price of 2GB SoDIMMs were $950 when they entered the market a couple of years ago. The price will drop.
    I asked the Kingston rep that sent these to me if online sites like newegg.com would have them soon. She indicated no, but the corporate buying sites like CDW and Zone would. So check around. They just started shipped a couple of weeks ago so be patient.
    If you have any other questions, please stop by http://blogs.technet.com/keithcombs/archive/2008/07/05/testing-my-apple-macbook- pro-with-8gb-of-ram.aspx and ask there. I'll see them much more quickly.
    Cheers,
    Keith Combs
    Microsoft

  • What is a good external battery pack for a 13" retina display?

    what is a good external battery pack  for my 13" retina display(macbook)

    Have a look here for the sizes and prices.
    It is however, much better to get a USB external drive that comes with it's own power adapter to avoid issues when or if your USB port can't supply enough power to your external drive.
    That issue however does happen rarely but it does happen.  Especially when connecting other devices to your other USB port while your external hard drive is connected to your other usb port.

  • What's your favorite case for the MacBook

    I normally use Brenthaven cases for my Apple laptops. I am just curious what anyone else uses for their MacBook. I'm looking for more than just a sleeve-type case. I would like to get a good, snug fitting case with some room for storage.
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    I use a combination of the Incase neoprene sleeve (black with lime green interior) and the STM Medium Loft bag.
    The sleeve is a very good fit and offers good scratch protection for the money. But be sure to remove the little badge from the inside to avoid it scratching the lid, awful idea sewing it inside there.
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