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Question: New Macbook Pro Calibrate Battery?

Hi I just bought a new Macbook Pro Non-Retina from the Apple online store as part of the Black Friday special offer. I have never owned a Macbook before so I wanted to know a few things about the battery. Will it come fully charged? Do I need to calibrate the battery on first use? How should I charge the battery to maximize battery life? Should I charge it 100% and let it completely run down before charging again or should I let it go to 20-30% battery power and then charge it?

MacBook Pro, OS X Mavericks (10.9)

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Dec 1, 2013 12:51 PM in response to Lantern_2814 In response to Lantern_2814

Hi L,


There's no telling how much charge it will have when you get it. Someone posted not long ago they had a dead batt.


First time let it run all the way down to auto sleep, then charge it all the way up. After that the 20-30% works well, and about once a month let it run all the way down again and charge it all the way up.

Dec 1, 2013 12:51 PM

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Dec 1, 2013 1:21 PM in response to Lantern_2814 In response to Lantern_2814

Your MacBook Pro has a built-in battery (non-removable). FWIW, that article states that portables with built-in batteries don't need the calibration procedure outlined in that article.


I have both a late 2013 retina MBP and mid 2012 non-retina MBP with built-in batteries and have never calibrated them the first time or anytime. Haven't had any battery issues with either one. However, your mileage may vary.


Good luck with your MBP they are awesome machines.

Dec 1, 2013 1:21 PM

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Dec 1, 2013 1:22 PM in response to Lantern_2814 In response to Lantern_2814

Calibrating Battery

If your portable Mac has a built-in battery, you don’t need to calibrate the battery.

http://support.apple.com/kb/PH11078?viewlocale=en_US

Quoting from below linked article

"Be sure to fully charge your portable when you plug it in for the first time, and then run Software Update to ensure you have the latest software."

http://www.apple.com/batteries/notebooks.html


Keep the computer plugged in whenever possible

If you keep the computer always plugged in, make sure that twice a month


run it on battery until battery level drops to about 50-40%.



Maximize Runtime / Tips for maximizing your battery charge

http://support.apple.com/kb/HT1446


Best.

Dec 1, 2013 1:22 PM

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Dec 1, 2013 2:06 PM in response to Lantern_2814 In response to Lantern_2814


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 unplug it.

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."



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 70% remaining of a 100% charge is a whole world better and different than another person who has 300 charge cycles at say 20% remaining on a 100% charge.

DoD (depth of discharge) is infinitely 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.



*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 die from power, you can corrupt files that way, and the batteries do not like it.

The only quantified abuse seen to Lithium cells is 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.

*Also, if you’re going to store your Macbook away for a few weeks or more... make sure it has at least a 50% or so charge.

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



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.


Peace 😊

Dec 1, 2013 2:06 PM

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Dec 1, 2013 2:08 PM in response to PlotinusVeritas In response to PlotinusVeritas

PlotinusVeritas wrote:


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."



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 70% remaining of a 100% charge is a whole world better and different than another person who has 300 charge cycles at say 20% remaining on a 100% charge.

DoD (depth of discharge) is infinitely 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.

Hi P,


It used to be that a "cycle" was when one or multiple charges equalled 100%. Example: using 20% one day, charging it up was not a full cycle. When, the next day, you used another 80%, that was then considered one cycle. Has that changed? Not questioning anything else, just definition of a "cycle."

Dec 1, 2013 2:08 PM

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Dec 1, 2013 2:15 PM in response to tjk In response to tjk

I honestly never pay attention to my charging cycles, just to my overall use and recharging habits of same.


Too much research indicates that: Yes, charging cycles (whatever the line is) counts, but ultimately its the "hard miles" that matter more.


None of them (couple guys that are paid to study battery dynamics as their job) agree that there is a specific point of a "cycle" (not referring to Apple but lithium batteries in general) 😊



A: LIke a speed demon with 40,000 miles on the thats been peeling rubbing down the road cranking things hard.


B: 100,000 miles driven by a senior citizen.


In some vague battery equivalency of person A wearing the same as person B


Ultimately we can all agree 3 years down the road (or whenever) a new battery is cheap-time.




Dec 1, 2013 2:15 PM

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User profile for user: Lantern_2814

Question: New Macbook Pro Calibrate Battery?