How to maintain a macbook pro mid 2012's battery life

Hello,
I know that there are a lot of past posts of this, but they still leave me unanswered. Being a recent windows user, I don't know everything there is to know about macs, however the one thing I do know is how expensive they are, so I want to keep everything in tact for as long as possible.
One of the key things I have realised from these discussions is that people are saying it's bad to leave a mac charging, it's bad to fully decharge a mac, and it also seems alright to not charge it fully or decharge it fully before charging. These were all kind of confusing to me as I thought to keep a battery healthy, you had to completelly drain it before charging it, charge it fully whenever you charge it, and it didn't hurt to keep it charging constantly.
Now for anyone who doesn't want to read all thet above, the key things I want to know are:
How to keep the battery healthy
Will fully decharging it affect it
What happens if I don't fully decharge before charging/ what happens if I don't charge it all the way
What happens if I leave it charging constantly
And if I am charging it on and off at school, what will happen (i.e. one period I charge it 20%, then unplug it and then charge it another 20% the next period)
Thanks for all your answers in advance, and cheers for reading all this. I hope you can clear me up .

Hugo Boss 5321 wrote:
One of the key things I have realised from these discussions is that people are saying it's bad to leave a mac charging, it's bad to fully decharge a mac, and it also seems alright to not charge it fully or decharge it fully before charging. These were all kind of confusing to me as I thought to keep a battery healthy, you had to completelly drain it before charging it, charge it fully whenever you charge it, and it didn't hurt to keep it charging constantly.
FALSE information. You may leave your MBP attached to the charger as much as you want. It cannot over charge. Avoid draining the battery completely. That will shorten battery life.
I keep mine charging all the time but about one per mont will use it with just the batter yo about the 40% charge level.
And if I am charging it on and off at school, what will happen (i.e. one period I charge it 20%, then unplug it and then charge it another 20% the next period)
You sometimes have to deal with realities. When Ac is available, use it, but it will not be so at all time. It will not have a great adverse affect on the battery.
Here are some articles that you should read that will fill in the details:
http://www.apple.com/batteries/notebooks.html
http://support.apple.com/kb/HT1446
http://support.apple.com/kb/TS1473
Ciao.

Similar Messages

How can connect my macbook pro mid 2012 to my imac 21.5 inch mid 2010 ?? I want to use imac like a display for macbook.

How can connect my macbook pro mid 2012 to my imac 21.5 inch mid 2010 ?? I want to use imac like a display for macbook.

Target Display Mode: Frequently Asked Questions (FAQ)
with a mini display to mini display cable. Attach it to the Thunderbolt port on your MBP and to the mini display port on your iMac.
How do I enable TDM?
Make sure both computers are turned on and awake.
Connect a male-to-male Mini DisplayPort or ThunderBolt cable to each computer.
Press Command-F2 on the keyboard of the iMac being used as a display to enable TDM.
Note: In Keyboard System Preferences, if the checkbox is enabled for "Use all F1, F2, etc. keys as standard functions keys," the key combination changes to Command-Fn-F2.

MacBook Pro Mid-2012 A1322 Battery

I have the Mid-2012 13inch MacBook Pro. The battery stopped charging, and the icon shows a Condition: Replace Now warning. The Apple Diagnostics shows the BAT/40000 code, so i want to order a battery. What I want to ask, is that are all original A1322 batteries the same? Is the same Battery used for the 2010, 2011 and 2012 models?

Purchasing a battery for a MBP from a third party source is like playing Russian roulette. Too often the battery does not perform properly and lasts a short time. These forums are full of such tales of woe.
I strongly urge you to get a battery at an Apple store. It will work and have a warranty.
Ciao.

Macbook Pro mid-2012 SERVICE BATTERY MESSAGE

Battery Information:
Model Information:
Serial Number:          W022869N4D3LC
Manufacturer:          SMP
Device Name:          bq20z451
Pack Lot Code:          0
PCB Lot Code:          0
Firmware Version:          201
Hardware Revision:          000a
Cell Revision:          165
Charge Information:
Charge Remaining (mAh):          632
Fully Charged:          No
Charging:          Yes
Full Charge Capacity (mAh):          4370
Health Information:
Cycle Count:          419
Condition:          Service Battery
Battery Installed:          Yes
Amperage (mA):          2791
Voltage (mV):          11911
IS MY BATTERY DOING OKAY? OR SHOULD I IMMEDIATELY REPLACE IT?
IM RUNNING MAVERICKS OS

ibrah97 wrote:
1. I didn't cycle it too much! see I have 400 cycles and counting.
2. I use my computer all day long and charge it until i get to around 30-40% of charge. I use it all morning on battery charge and at noon switch to plug it on charger. BTW I leave it all night charging it so that next day I have full charge on my macbook pro so i can use at school.
3. I used to play GTA SAN ANDREAS on it but usually while charging due to the game sucking all my battery charge
PS: The battery should last up to 1000 cycles according to my model.
Wrong, the battery CAN last UP TO 1000 cycles.
Ive seen well treated battery get over 1300 cycles before the chemistry is ruined.
I can, if so inclined, easily destroy a lithium battery within 300~400 'cycles'   (cycle count is not what ruins a battery within 1 to 3 years...., its short term abuse).
I use it all morning on battery charge and at noon switch to plug it on charger.
You didnt answer the ONLY important question............do you often drain the battery very low?
Cycle counts mean almost nothing .........there is a huge myth about charging cycles. (see below)
Proper understanding of a battery charge cycle
A charge cycle means using all of the battery’s power, whether that is at once, or over several shorter battery discharges and recharges.
Two examples for clarification:
As a first example, where one fully charged battery is discharged down to 10%, then fully recharged, then using 10% of that full charge, this counts as 1 cycle since the total of both discharges is 100% of a full charge of use.
In the second example, where one fully charged battery is discharged down to 40%, then fully recharged, then using 40% of that full charge, this also counts as 1 cycle since the total of both discharges is 100% of a full charge of use.
While both examples are that of a single charge cycle, the first example is more aggressive against the lithium battery chemistry than is the second example. In short, collective overall gentle shallow or mid-range draining of your lithium battery is a better use condition than is the first example of deep-draining of the battery. While both are quantitatively identical as a single charging cycle, they are wholly different qualitatively on the battery chemistry, which is directly related to its ultimate longevity and health.
In short, it is the near and mid-term life of the battery as relates to its proper care (or lack thereof) that is to be looked after.
Priorities in order of decreasing importance for battery care are:
1. Avoiding deep discharges of the battery.
2. Avoiding having your battery constantly on charge or on charge and in sleep mode.
3. When playing graphics intense games, use your notebook plugged in when possible.
4. Reduction of battery cycles by plugging into power when on the go, or when accessible.
A person who has, for example, 300 charge cycles on their battery and is recharging at say 40% remaining of a 100% charge has a better battery condition state than, say, another person who has 300 charge cycles on their battery and is recharging at say 10-15% remaining on a 100% charge. DoD (depth of discharge) is vitally important on the wear and tear on your Macbook’s battery, much more so than is the counting of charge cycles. There is no set “mile” or wear from a charge cycle in specific. Frequent high depth of discharge rates (draining the battery very low) on a Lithium battery will greatly hasten the lowering of maximum battery capacity.
Understand that a charge cycle is a general parameter of use, but is not directly related to the short-term or mid-term abuse of the battery, which can rapidly hasten a shorter lifespan, regardless of what the actual cycle count on the battery indicates.
Proper considerations for near-term care of the battery is of utmost importance. Abuse of the battery is entirely avoidable, long-term eventual old age deterioration of the battery is entirely unavoidable.
Apple’s adaptive charging system mitigates much potential for accidental battery misuse or abuse; however it is still readily possible to abuse the battery and thereby affect battery health.

My iPad 3 is not charging on my macbook pro mid-2012. It was working yesterday and it is not working now, and I'm trying to transfer files between them. How do I charge my iPad with my macbook without having to be a completely new computer?

I am trying to transfer files between my ipad 3 and my macbook pro mid-2012 and they will just not connect. I connected them yesterday and it worked fine. And i can not air drop these files into my ipad it has to be done through itunes. And i can not afford to buy a new computer. How do i get these two to connect without having to buy a completely new computer?

Computer USB ports, regardless of the computer maker, have a relatively low power output and thus are not good chargers. They will charge but it takes a long time. You should be charging your iPad from wall power, or a more powerful source like an in-car charger.
Buying another computer will not change that.

Macbook pro mid 2012- Wanting to know how to install windows using bootcamp

Hello everyone,
     I'am sure this question has been asked many times but this is urgent and can't really find all the necessary steps I need in my situation. I am using a MacBook pro mid 2012 I believe. I'am taking colleges courses, and need to use visual basic. Unfortuanatly visual basic is not compatible with macs. I've done a few researchs and found out installing windows 7 with bootcamp is maybe the best solution? Probleme is I have no start up disk that came with the mac, and the cd drive is broken. I do have an external hard drive I bought a few months ago.
     What exactly do I need in order to set this up? Is it still possible without a start up disk, and by using a external hard drive? How should I get windows 7? Online or buy the disk?
     If someone could either direct me to a threaded explaining a similar case? Or point out what I need, and a few important steps to follow?
I appreciate it!
Thanks
LJ.C

if your MBP has a DVD drive (even if broken), it requires that to install windows via boot camp so you have 2 options
get your dvd drive repaired, or
see if the usb boot camp hack will work for you - http://forums.atomicmpc.com.au/index.php?showtopic=51873

MacBook Pro mid 2012 15" - one RAM slot gone bad

Hi,
Has anyone ever had the issue with not working RAM slot? My MacBook Pro mid 2012 (non-retina) suddenly froze and after restart was beeping three times every few seconds. I found out that the beeping signals bad RAM. Bought new chips, and the problem still exists. My mac can now run on one slot with 4GB RAM.
I did check the placement of the chips in the slots, i also checked one slot at a time, and one of them has gone broken.
Any ideas on how to make it run again? or if it is possible to replace the slots?
Brgds
Marek
MacBook Pro 2,7GHz Intel Core i7 / OSX 10.9.4

The Apple-accepted cure for a dead RAM slot is a new logic board. Unless you ahve AppleCare, that will be an expensive fix.
An Apple service option is the "depot repair." Instead of working on your computer in the Apple Store, they send it to a centralized refurbishment facility where they fix anything they find wrong (except for cosmetic damage and damage from abuse like dropping) for a flat fee of a little over US$300. That is between 30 and 40 percent of the parts and labor charges if Apple installs a new board in an Apple Store. Sometimes they will install an new battery at the depot without increasing the flat fee.
The downside is that it takes about a week; for that level of cost savings, I could do without my computer for a week.
So take it to Apple and ask about a depot repair.
A low-tech and low-cost option is to expand on what you are doing now--using one slot. Although the official RAM limit on your model is 8GB RAM (two 4GB models), your model can actually handle a total of 16GB (two 8GB modules. You can ignore the dead slot and put an 8GB module in the good slot. My 2012 MBP has 8GB RAM and is completely happy running Mavericks.
Be sure to ONLY get the RAM from an Mac-savvy vendor. For over a decade I've bought all our Mac RAM from one supplier. This is their page for an 8GB module for your MBP model:
http://eshop.macsales.com/item/OWC/1600DDR3S8GB/
I would also trust Crucial on this one. For a change they recognize that your model can use more RAM than stated in Apple's outdated specs:
http://www.crucial.com/usa/en/compatible-upgrade-for/Apple/macbook-pro-%2813-inc h-and-15-inch%2C-mid-2012%29

Macbook Pro (Mid 2012) Startup Time Increased

Hi everyone,
I have a Macbook Pro (Mid 2012) non-retina model. I have an upgraded SSD (Crucial MX100). The startup time from switching on to the login screen is usually around five seconds but since this morning the time has increased to around 40 seconds. When the power button is pressed, the tone sounds and the screen lights up but it takes quite a while for the apple logo to appear. I haven't added or removed anything or changed any settings since before this happened. There doesn't seem to be any changes to the performance of the computer once it has started up, or the time taken from the password entered for the bar to load (Yosemite).
My hard drive cable once broke and I had it replaced at an Apple store (if that means anything to anyone). If anyone could give me any possible explanations or advise on how I can return the boot up time to the normal time.
Thanks,
Ben

    Select Macintosh HD as the Startup Disk.
“Set the default startup disk”       http://support.apple.com/kb/HT1310
   Reset PRAM.      http://support.apple.com/kb/PH18761?viewlocale=en_US&locale=en_US
   Start up in Safe Mode.   http://support.apple.com/kb/PH18760

Migration Assistant can't find External HD on MacBook Pro Mid-2012

Hi, I have a MacBook Pro Mid-2012 running OS X Mountain Lion 10.8.2 and I am trying to use Migration Assistant to transfer Time Machine backups that are on my external hard drive, that I backed up from my old MacBook Mid-2010. The problem I am having is that Migration Assistant can't find my external hard drive. My MacBook Pro can find it when I plug it in (I see it in Finder), but Migration Assistant can't. Can anyone help or should I go to the Apple Store? I need help with this problem as soon as possible.
Thanks in advance,
- Daniel 

Since no one replied I figured out how to do it myself.
1.) First I plugged in my external hard drive with my Time Machine backups on them, then I opened Finder and click on my external hard drive under devices.
2.) Next I clicked on and opened the folder named "Backups.backupdb"
3.) Once inside that folder I could see folders with the backups from Time Machine and all of the folders names were the date I backed up that backup. I clicked and opended the lastest backup folder.
4.) Inside that folder, I clicked and opened the folder named "Macintosh HD"
5.) Inside that folder, I clicked and opended the folder named "Users"
6.) Inside that folder, I clicked and opended the folder named "Daniel" which was my Username on my previous Mac.
7.) Finally I could see and access all my folders from my Time Machine backups from my previous Mac.
Keep in mind this is only helpful if you are trying to access old backups (backed up from another Mac) on a new or different Mac. (Sorry for the blurry images)
Hope this somehow helps someone else,
- Daniel 

MacBook Pro Mid-2012 Overheating?

I just got my MacBook Pro Mid-2012 less than a week ago, but I am already having problems with my MacBook Pro heating up. It gets to a temperature that almost burns my hand when I touch the bottom. My old MacBook didn't do this. I was running Windows last night and it just shut down, presumably because the computer overheated. However, I have no idea how to measure the temperature without installing additional software. How do I do this? It is normal for the MacBook to do this? If I take it to the Apple Store and they agree that there is a problem, should I just wait until WWDC to have them swap it out (potentially for a new MacBook)?
I also cannot tell if the fan is actually working.
Thanks!

As your MacBook Pro was bought only a week ago, return it and get a new one. It's not normal because your MacBook turns on fans automatically when the temperature rises. Moreover, if you run Apple Hardware Test, it will probably give you an error referring to the fan, so it's better to return that computer and get another that works correctly

Macbook Pro Mid 2012 Firmware Downgrade

Friends Macbook Pro Mid 2012 model evo to my computer upgraded with 840 samsung 6 months ago, and I was using it without any trouble. But in the last one month I got on my computer machine kernel cache error. With the installation and opening of the original disc, but SSDs doing was making trouble. I gave the service SSD y not change no matter what problems they have learned and change. Carbon Copy Cloner now and again with mac dupper supper time machine backup or recovery took my board if I did not open and the kernel fails again on cahce. Trim off mode, albeit not have them, even if I've tried everything. In the end, many SSDs ef firmware samsung site about a problem with the data transfer rate is found. Now I guess my goal to downgrade version 1.6 of EFI y How can I do my job, you'll see that information transaxle. Downstairs you can see information about my computer.
Model Adı:    MacBook Pro
Model Tanıtıcısı:    MacBookPro9,2
İşlemci Adı:    Intel Core i5
İşlemci Hızı:    2,5 GHz
İşlemci Sayısı:    1
Toplam Çekirdek Sayısı:    2
L2 Önbellek (her bir çekirdek için):    256 KB
L3 Önbellek:    3 MB
Bellek:    10 GB
Boot ROM Sürümü:    MBP91.00D3.B08
SMC Sürümü (sistem):    2.2f44
Seri Numarası (sistem):    C0*****TY3
Donanım UUID'si:    BCE9C44A-96BE-5140-AA5A-91AEEE244573
Ani Hareket Algılayıcısı:
Durum:    Etkin
<Personal Information Edited by Host>

It may have nothing to do with the firmware of your machine. What is the Kernel cache error? Bootcamp is one option to upgrade firmware of the SSD.
The Samsung SSDs come with Magician, which should allow you test the performance and integrity of the SSD. If it is a HW issue, you should be able to get a replacement. Samsung originally had offered a 5-year warranty on the 840 Pro SSDs.
The other option is a down-loadable .iso from Samsung Support website.

What are the things required to upgrade internal hard drive For Macbook Pro mid 2012 13 inch?

Hi,
I want to upgrade my internal drive but I don't know how to do that. I have already purchased a WD 1TB internal hard drive. However, I contacted apple support and they said if I try to upgrade the hdd myself, then the warranty of the macbook would be void. I am from India . I currently have a Macbook Pro mid 2012,13 inch.
Also, do i need to download a setup of Yosemite before changing the hdd?
Please guide me
Thanks and Regards
Abhineet Arora

You know what the impact will be on the warranty terms. If you want to install it yourself, look at this video:
http://eshop.macsales.com/installvideos/macbookpro_13_unibody_mid12_hd/
It is not very difficult. You will need a #00 Phillips and a #6 Torx drivers.
Ciao.

Macbook pro mid 2012 backing up from disk ulitiy asking for "login" keychain?

I bought a "WD My passport For Mac 1TB" portable external hard drive since I can't get into my macbook pro mid 2012 10.9 because when I turn it on its just grey screen with apple logo and spinning wheel. I went to future shop to the geek squad and they did diagnose of it that is wasn't the hard drive but the operating system with problem. Which makes sense since I did the apple hardware test, disk repair/verfy, permissions repair/verify and they all came back with saying my volume is ok etc.
SO my question is to back up my files etc. I do the command + r and go to disk ulitiy and click on "Macintosh HD" and then click "New Image" and then select "My Passport for Mac" to save on there. What I want to know should I put "compressed", "read/write", "read only" or "DVD/CD master" for Image Format? AND For encrytion, do i pick "128-bit AES encryption (recommended)" or "256-bit AES encryption (more secure, but slower)"?
Also I have one more option before I go to my genius appointment on saturday is to do the "erase and reinstall" option. Of course I need to back up my files to do that which is why I am asking the questions above. Can any one link me to the "erase and reinstall" option OR tell me your experience on how to do it OR how to do in overall? Also, is it an effective method? I already have the important files on my google drive, have my microsoft disk stuff on my USB, the only app I kind of don't want to lose is my "Notes" app. Also for the apps I downloaded in Apple store they should be still there even if I erase my hard drive?
So I did the command + r and go to disk ulitiy and click on "Macintosh HD" and then click "New Image" and then select "My Passport for Mac" to save on there. I put "read/write" for Image Format AND For encrytion, i pick "128-bit AES encryption (recommended)"
I put in a password when prompted but after that it says "Disk Ultitiy wants to use the "login" keychain." I put in my ususally login password that I use to get on to my desktop but that doesn't work. I have the option to press ok or cancel. Can I just press cancel and will it contiune on backing my files to my external hard drive?
I pressed cancel and the progress bar to saving my macintosh HD to MY external hard drive portable isn't shown any blue bar progress for 9 mins now...
do u know what to do?

If you like you can also restore, via Disk Utility, the DMG onto another disk, but you will be able to read the contents, simply mounting the volume inside any version of OS X.
^ What do you mean by this?
Also, It says on here:Mac OS X v10.5, v10.6: How to back up and restore your files - Apple Support
When the imaging process is complete, select the newly created disk image in the device pane. Then, choose Images > Scan Image for Restore... from the menu bar, and let the scan complete.
Quit Disk Utility (press Command-Q). Then press Command-Q to quit the Mac OS X installer; you will be prompted to restart.
Restoring the backup disk image's contents to your internal Mac OS X disk
What does Images > Scan Image for Restore mean?
Also If I erase hard drive and then reinstall mavericks OS X from "command + r mode" and after that hopefully I can get back in would I hook my external hard drive and then open the copy of the "macintosh".dmg and drag everything back on? or...?

My Macbook pro Mid 2012 Model Seems to be using too much RAM

Hello everybody, I recenlty bought a Macbook pro Mid 2012 Model and I absolutely fell in love with it! I use it everyday for school, work, and for my musical hobby.
I haven't had a single problem with it until recently, and it seems like the RAM memory is being all used up without me even running programs. This problem barely started rougly 2-3 weeks ago and it's becoming annoying. I do plan to upgrade the ram soon seeing as the extra RAM will help run my engineering software I'm going to be using.
Anywho I'm just looking for tips, suggestions or answers as to why this problem is occuring. Also heard from a fellow employee that Google Chrome can cause this problem with RAM and battery life as well.

Stop using Chrome for any number of reasons and stick to Safari. An aspect of OS X memory management is to take over as much memory as possible in order to better manage the memory, however, this does not mean you are running out of memory. You only run out of memory when you try to run too many applications concurrently given the amount of RAM you have. You will know when that happens because the computer will slow down, you will see the beachball a lot, everything you do takes forever, and the hard drive will be grinding away.
About OS X Memory Management and Usage
Using Activity Monitor to read System Memory & determine how much RAM is used
OS X Mavericks- About Activity Monitor
Understanding top output in the Terminal
The amount of available RAM for applications is the sum of Free RAM and Inactive RAM. This will change as applications are opened and closed or change from active to inactive status. The Swap figure represents an estimate of the total amount of swap space required for VM if used, but does not necessarily indicate the actual size of the existing swap file. If you are really in need of more RAM that would be indicated by how frequently the system uses VM. If you open the Terminal and run the top command at the prompt you will find information reported on Pageins () and Pageouts (). Pageouts () is the important figure. If the value in the parentheses is 0 (zero) then OS X is not making instantaneous use of VM which means you have adequate physical RAM for the system with the applications you have loaded. If the figure in parentheses is running positive and your hard drive is constantly being used (thrashing) then you need more physical RAM.
Adding RAM only makes it possible to run more programs concurrently. It doesn't speed up the computer nor make games run faster. What it can do is prevent the system from having to use disk-based VM when it runs out of RAM because you are trying to run too many applications concurrently or using applications that are extremely RAM dependent. It will improve the performance of applications that run mostly in RAM or when loading programs.

OS X MAVERICKS on Macbook Pro, Mid 2012 4GB?

I am running a new Macbook Pro, Mid 2012, 4 GB and the App store said my computer was eligible to get OS X Mavericks.
My question is, how is almost 6 GB of a system going to fit into a 4 GB Macbook Pro.
To upgrade or not? Help!

I upgraded mine to maveriks and am having many issues with it, I recomend not doing it till some issues have been fixed. There are problems with sound, scrolling with the trackpad, using usbs, keychain logs and the list goes on. I can't downgrade either. I'm so frustrated the fixes on various forums about these issues only seem to work temporarly

How to maintain a macbook pro mid 2012's battery life

Similar Messages

Maybe you are looking for