How to Upgrade the Battery in a MacBook Pro Retina 15-inch (mid 2012 - early 2013) MacBookPro10,1
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- čas přidán 16. 07. 2024
- Yes, it’s possible! Remove and replace your glued on 2012-2013 MacBook Pro Retina battery.
View our battery upgrade kits for MacBook Pro here:
eshop.macsales.com/shop/lapto...
Order a battery upgrade kit for 2012-2013 15-inch MacBook Pro here:
eshop.macsales.com/item/Newer...
Works with the following MacBook Pro models with Model ID:
- MacBookPro10,1
Restore You Mac's Runtime!
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INSTALLATION DIFFICULTY LEVEL: 5 OF 5
Recommended for experienced technicians.
Tackle the job in less than a day.
Ready to take on the removal and replacement of your soldered OEM battery in your 2012-2013 MacBook Pro Retina notebook? This complete DIY tool kit from NewerTech will help you do just that. Includes a high-quality, model-specific battery; comprehensive, model-specific video guidance, and 24/7 customer support; plus all the tools necessary to get the job done. Everything has been tested for usability and reliability, including the adhesive remover you’ll need to lift the OEM battery from its secured position. - Věda a technologie
The battery can come off on its own. There's no need to disconnect all the things shown in this video. Once you have disconnected the battery and removed the two screws holding it down, just use a non-metallic string to 'saw' the adhesive under the battery and lift it up. It's that simple.
@@ocaminhodefatima991 No. This is an overly complex way of removing the battery.
@@aka_rook I think there's always pros and cons. The pro for using the string method is that it makes the removal process pretty fast; minutes instead of hours. The cons for the disassembly method is the time necessary to do the job and that if one is not mindful, it's easy to damage components, ribbons, wires, connectors and snaps. In addition, the tiny screws can be easy to loose and confuse. All that said I'm sure NewerTech who's been around almost as long as Apple Computer itself, is simply following Apple's official repair guidelines for the battery replacement. The idea of coarse is safety first and to give as much clearance around the battery as possible in order to prevent damaging it, or other components and ribbons during removal and creating a dangerous and toxic fire situation which can also destroy a laptop. In addition, carefully disassembling the computer can also help to help keep critical components from getting damaged as part of the battery removal process. On the flip side however, improper or careless disassembly and reassembly can damage those same ribbons, wires, connectors and snaps. The button snaps for the antenna wires that connect to the wireless card are extremely delicate. Pushing down with uneven pressure can permanently damage both the male and female halves of the snap, rendering antenna wires and wireless card permanently damaged.
After disassembling my laptop twice, because the first time I missed clearing two ribbons from underneath the logic board, and because now I have a greater understanding of how the computer is assembled, I would use the string method. The two center battery cells are glued to a very thin aluminum shroud that protects the underside of the track pad. Pull too hard on the battery and one can pull that metal shroud right off of the bottom of the track pad. The delicate aluminum shroud is simply glued in place with contact cement. It and the the small ribbon that connects the track pad to the logic board can easily get damaged. Also if any of the ribbon cables tear, you may as well throw your computer away.
So my word of advice for any of the two methods is, work slowly and be ultra mindful of critical components. When reinstalling the battery, be sure to line up the two screw holes prior to pressing the battery to the case. If the battery has been glued to the case and the the two screw holes are not lined up, chances are one won't be able to reposition the battery afterwards in order to thread those last two screws. This little tip was not mentioned in the video.
i agree all the extra steps just discourages people from doing this theirselves
Bizarre... I did use isopropyl alcohol and a credit card, but that was all. D'uh!
95% of the work in the video is unnecessary!!! It's as if show you how to remove the cup holder while you simply need to replace your car's battery!
All you need to do are:
1. open the back
2. disconnect the battery from the motherboard
3. unscrew the two screws underneath the warning sticker
4. remove the batteries using dental floss wire (or similar ways)
5. replace the batteries
6. put on the screws
7. connect the power cable to the motherboard
8. cover the back and put all screws back
9. done.
Zhongjie Chen yeah what is this guy doing lol
I agree but I would definately drain the battery as I used the dental floss method a few times and one time the battery ignited
Zhongjie Chen Thank you!
pretty sure they did some extra steps.because this is made by macsales. an aftermarket mac parts company. if you're replacing your battery they probably want you to see how easy it would be to upgrade your ssd or wifi card. doesn't really make sense to take those out. otherwise.
Yup, he is right. I found that 25 pound fishing line looped and worked under the batteries with a sawing motion released the adhesive from the old batteries. Thank god I read the comments. Taking apart all this stuff would be risky(and insane) as the connectors are tiny and fragile. This is totally doable.
Nicely produced video, and I used the instructions for how to do the initial battery charging, but you can simply remove the old battery with the string method (I used six strands of dental floss and the two little screwdrivers from the battery kit as handles). Cut the adhesive easily, with no chemicals required. Removing the guts of the laptop just to change the battery is crazy and unnecessary.
Agreed.
Thanks MacSales - I watched your video first, then ordered the battery. I found the video very detailed with precise instructions that were nicely narrated. Everything works EXACTLY as shown in the tutorial. One caution though, as mentioned in the video, be VERY sure you've moved every connector out of the way before replacing the motherboard. It got me when reconnecting the keyboard backlight (and a couple others). I recommend setting up a space to lay out all the parts and torx screws in the pattern they were removed, it helps keep everything organized when putting it all back together. Great video tutorial - I wish all were as good as this one.
I watched the first half of this video, which covered disassembling the MBP. At some point I realized that most of this disassembly is so you can remove the speakers to avoid having the solvent damage them. Removing the back cover is easy. Then there are only 2 screws under the warning sticker at the top of the battery that must be removed. I was able to remove the battery using some plastic hotel room keys. It took a little effort and working to push them under the battery to separate from the case, but in my opinion this was way easier than taking the entire system apart. It may be less risky too, as I always fear screwing up one of those flimsy ribbon connector things. Note, I did not use any solvent, so there was no risk to the speakers or the display.
The entire process took me about 30 minutes and my MBP is working great.
Yeah... should have just done that.
This was a great and thorough tutorial. Although some people may prefer the quick way of just removing the battery, while potentially risking all the other components that make up the computer (logic board, SSD card, etc.), this way is how a professional repair shop would do it. The part that took the longest for me was removing the leftover adhesive from the laptop housing-everything else was pretty straightforward.
I appreciate the level of detail included in the narration portion of this video where details were shared regarding the size and position of screws which made putting things back together so much easier.
My laptop is up and running perfectly. Remember to calibrate the battery before returning to normal usage conditions. Thanks for the assist on this one!
Literally skipped almost every step and just disconnected the battery cable and used a nylon string, ran it under the battery, and cut the adhesive. Worked like a charm.
That's awesome that you found a way that worked for you. 🙂
@@poweredbyowc your turn!
This video immediately makes clear to me why I am not going to do this myself, unless the kit comes with the soothing ukelele player and percussionist?
just take the battery only out
It had the opposite effect for me. No soldering, just connectors and screws. I’m saving the $400 they quoted me.
Almost everything up until 09:35 is totally unnecessary - I dont understand why this tutorial suggests removing the entire contents of the macbook. I have done this myself just by detaching the battery and sliding a credit card underneath the battery to separate the glue. Removing speakers, wifi card....WHY?
Thanks for this, because I have delayed removing my battery due to all that removal process.
I agree with Mr. Chen. After following a few instructions that could easily break something -such as a delicate zif connector that should be never be touched (or used anymore, note to Apple), I realized that you just have to get under the battery. I freed it in less than 10 minutes using a MATCO 2141-7 nylon pry tool pointy end to lift the edge and round end to slice through the adhesive. This automotive tool is extremely strong and about 8" long. Once the battery was out the glue scraped off with a shop knife.
If you actually want to remove the battery yourself there's a much easier way if you go back to your search. The method is using string of some sort pushing it around the battery cells, and pulling them out. You don't need to take the whole damn thing apart lmaoo.
The credit card method works! R&R my mid 2012 battery in under an hour. I used thermal paste on non-adhesive surfaces on bottom of battery and did not remove stickie residue from laptop case. Waiting for battery to drain so can calibrate it. Loved the video BUT there is an easier way. And I'll bet the mac shop uses it too.
Thanks for making such a detailed and accurate tutorial! It worked perfectly. I'll echo though that is VERY easy to leave a couple of cables under the motherboard when you put it back in. I had to remove the screws and fish them out twice before I got everything.
same here man
Yeah... I lost two screws and left some ribbons under. The keyboard backlight has like a yellow tint and the speakers are disconnected... but I think I'll just use that as an excuse to keep it a work computer. I can live with bluetooth/headphone jack for an old laptop.
Definitely took some time but worked and battery is fully functional. Thank God!
More steps than necessary for just the battery replacement, however, I replaced my speakers as well so was great for me. I wish the when you said to watch the cables when replacing the motherboard point out which ones to watch out for, as there are a few and some are small and easy to miss until you want to plug them in and you have to unscrew some of the motherboard screws to fish them out from underneath. My laptop is busy charging now, so I haven't checked everything is ok, but it went pretty smoothly thanks to the video.
Anyone doing this and doing the whole dissemble I definitely recommend having a magnetized screwdriver so you have an easier time replacing the tiny screws.
Great tutorial! Just finished replacing my battery on Mid-2012 MacBook Pro Retina 15-inch using this tutorial. It took me about 3 hours to do. I had a difficult time getting the adhesive from the old battery off. Thanks so much.
Excellent video. Thank you very much for the detailed steps, it made changing the battery a lot less scary.
Great conga playing on the soundtrack.
Great video, thanks! Completed the swap in around an hour.
Glad to hear the installation went well, if you have any follow-up questions you can always send them to support@owc.com as well!
thankyou, it helped a lot~~ since I have no experience what so ever with this, but super big problem though, adhesive remover doesn't come with the battery I ordered...
We are happy to have helped. Thank you for your feedback.
As they won't ship to my country (I live in Mauritius), I had to buy a replacement battery from China so I did not have all that kit. I did the job using white spirit as glue remover and a small stucco spatula to detach the battery. So I dismantled the whole thing as per instruction only to realise that with my method you don't need to. The battery came off so easily that you do need even to remove the speakers.
I typed to fast… read "the battery came off so easily that you do not even need to remove the speakers"
Thank you for this 'how to' video! :)
ridiculous, removed mine using a string in 20 min. Job done.
Sorry, i'm very new at these.
I would like to know what is that shiny part that looks like two little magnets o metal parts that are in the grey plastic that surrounds the battery. You can see one near the keyboard connector. Mine have some rust on it and I'm busting my head trying to find how is that called and what it does. Do you know? Thanks!
Hey, thanks a million for such an awesome vid! Every step is crystal clear now. Just got a new battery too for my MBP. Watched some videos on YT. I see some people remove the battery with a nylon string. Do I really have to disassemble the whole thing or is it just a safety precaution when using the adhesive remover liquid and cards?
Hi Egor, We would recommend following the video for the best results.
How long does the replacement battery charge lasts?
Very professional 🍻
Thank you! Perfect directions except for one item. At the very end when installing the new battery, the directions fail to mention to be sure to line up the last two connection screws. I pressed the battery cable connector in as was shown in the video and then I laid the battery into place. Then when instructed to screw in the two screws for the battery, the holes were out of alignment and I was not able install the screws. At this point the battery was already permanently attached to the base, so I had to omit those two final screws. I don't think it will pose any problems however.
We are glad that the video helped you out with the battery installation. We will certainly forward your feedback to the appropriate department. Please feel free to contact us if you have any further questions, comments, or concerns. eshop.macsales.com/Service/
I didn't read the comments before starting.... Why the hell have I stripped my Macbook down to the case when it was absolutely unnecessary?? Jesus christ, what the hell
I bought an HWG battery from Amazon (that is a crap). What about this one? Is it work smoothly without issues? for instance: percentage jumping, switching between normal and replace recommended at the system info/power/condition Thank you !!
I hate Apple for this.
It's their new policy. I had the same shit a couple of months ago with my iMac. 6 yo, throw it in the bin and buy the latest model. Thing is, I live in Africa, and here a new powerful iMac costs 6 months of salary. So I found a used logic board and graphic card in China (eBay and Amazon don't ship down here) and as I was at it I also upgraded the hard disk to an SSD. Now my 2012 iMac is faster than their latest model in the shop window. I wonder what 95% of people, who have no tech skills, do.
this is bullshit
theres really no other way to get a laptop this powerful and this slim in 2012.
@@ddogthepimp its called screws
@@newaccount5172 THENK for the enlighten oh keeper of knowledge!
Okay, so I just did this and was thinking it wasn’t so bad. I would be extremely careful removing the speaker wire that they don’t show very well, as a label is blocking your view. I ripped my off the mother board! Also I’d avoid removing the excess glue as this was the hardest step and it’s optional!! In hindsight I should have watched the whole video right before I did it!
Just followed the guide this morning. Pretty easy. I'd recommend maybe adding some thermal grease in your replacement kit and a couple steps on how to change the cpu and gpu grease while letting any acetone from the battery removal dry in that 30 minute wait.
you mean thermal paste?
The video is good, BUT I would have appreciated a checklist of everything you need to make sure doesn't get pinned down under the logic board before replacing. 2nd time having to remove everything because a cable is trapped under there :(
all the alcohol and stuff won't make the trackpad stop working?
this is more like how to take apart a macbook pro retina 15 inch but still cool!
UPDATE. After not following these 86 easy steps.. and doing it MY way (logical way). The battery started smoking after I short circuited the damn thing.. starts smoking! Sparks! caught my drapes and wood blinds on fire.. The fire department just left. JUST KIDDING! THE BATTERY has been replaced. Took me about an hour to do. You do however want to very careful not to damage any hardware or connections of course and be very careful when prying over the trackpad area. After the unplug of the battery fro the board and removing the two screws.. I used a 2" new ( inexpensive, plastic with good flex) putty knife. I slowly worked the battery (a slow prying action) and did it very very slow.. From one end of the battery to the other. Since the battery I received had the stickies STUCK TO THE TOP OF THE BATTERY instead of the bottom. So I used two pieces of double sided tape.. just on the two end cells of the battery. Worked just fine. Everything is working fine and there was zero damage. On first battery cycle. No I did not use gloves, adhesive remover, plastic square thingy (which was not included) or landscaping goggles, provided. However, you should? Depends how confident you are in your skills I'm thinking. THIS COMMENT WAS JUST MY EXPERIENCE. I'M NOT SUGGESTING THAT THIS WAS A BETTER WAY OR THE RIGHT WAY. ALSO I'M NOT SUGGESTING IT'S THE WAY YOU SHOULD DO IT AS WELL.
😂🤣
We hope you thanked the rescue squad that went out to help you out.
On another note, We are glad to hear that you were able to find another way to do the installation that worked out for you. We provide the way to avoid any damage to the mac which regrettably does have many steps.
Came to learn how to replace the battery on my Macbook. After 10 minutes of being told to remove virtually every piece of hardware inside first, I gave up and called the Apple Store to set up an appointment. Well done Apple.
Its an easy job - they have tried to make it look as complicated as possible in order to sell these kits - 90% of the steps shown in this video are not needed.
The fun part is you don't actually have to take most of the parts out
"being told" lol
The battery comes off on its own no need to tear down the whole book. I ended up breaking the speaker connectors and now I have no sound
In my kit I bought i don’t have an adhesive remover do you have any recommendations as far as what product i can buy to use and where to get it?
Goo be gone works great!
So--- why the major disassembly only to replace all the boards/cables before putting the new battery in? Is it just for safety reasons so the adhesive removed does not damage the boards?
yves eynard my thoughts exactly. I think it’s to protect the mother board and every other little thing that might fry the computer. I’d rather risk it than doing all that extra stuff.
Thank you very much for responding.
Why do you need to take everything out? instead of just replace the battery. Is it because the adhesive remover can cause damage to the board and parts?
The adhesive remover is Isopropyl alcohol which will not damage the logic board. However you do need to be very careful not to get it on the screen. So calling BS on your comment. Sorry :)
You don't need to do all of this! Just remove the battery and replace
We recommend doing this as since we are using liquids, we like to remove any/all risks of damaging other components as we use the adhesive remover to remove the battery. This video helps to ensure no damage is done due to the liquid, but for those who choose to skip the extra steps, simply be careful while using the adhesive remover.
Me after 5 min in the video : fuck that, it will stay plugged for life
Why do you have take everything apart just to change the battery? It took me 95% less time the time thsn you take
2:14 the 2 screw drivers my kit came with can't be used with whatever screw that is for some reason :(
I'm sorry to hear that. :( However if you need any assistance, we have a team of experts ready to help :) Reach out to us directly and we would be happy to help.
Legit had to do everything over 4x because i kept realizing later that wires were underneath the logic board.
Oh, and I lost functionality of my back light keyboard too. The ribbon somehow broke. Rip.
this is crazy, before i started it I got a headache T_T this connector goes... ahh
What is the purpose of removing the entire board? Worried about getting the glue remover on it? I would have thought it could all be done by just disconnecting the battery and drizzling a bit of acetone under the battery cells to free the gum? Adds so much time and effort using this method.
correct, thats all you do, but the guys making this video are trying to sell a "kit" so they need to make it look as hard as possible.
@@TONY_FEZ yup! I gave up on the Macbook in the end. Had so many logic boards fail that the cost was no longer worth keeping it. Sold the screens and a few parts on eBay and moved to a Windows PC.
Can OWC explain why I can't just change out the battery? Why would I need to remove everything else in this video? Is there some potential for some sort of damage due to a current spike if I don't? From some capacitor or something? Many other CZcams videos just have the battery alone being unscrewed and changed, not all the other items.
We recommend removing everything from the machine for safety precautions as solvents are used to remove the battery which can lead to potential damage to the machine.
We like to make our installation videos with every precaution to ensure our customer's have a successfully installation with no potential damage to ones machine.
@@poweredbyowc Thanks, I replaced the battery already, works fine. I didn't remove anything else. It was simple and not complicated, did not take long.
???? thats a lot of work to replace the battery. just let the battery run down leave for a while remove the power cable remover the batt with an old Credit card (works great) clean up replace the batt. Bobs your uncle Job done 🤷♂️
Guys, One big question:
I did everything on this video and all but after a month or so I tried to take a photo using my mac's camera and it says it's not connected, so... I know it was my fault buuuuuut, I was wondering if anyone could tell me what connector did i forget to plug in or something.
Thanks in advance!
Great content!
From Mexico.
@3:10
Brian Illusions mate, thanks a lot.
Dayam! How deep is that battery buried in there? Then skipped through video to see the battery was on the other side the whole time. Gotta ask WTF?!
What it the reason it is all taken apart to remove the battery then put all back in before installing the new battery. Can't you just remove the old one and install the new one without going through the whole board removal process?
I agree. What am I missing here? If it's all to be able to remove the adhesive, why doesn't the new one require adhesive?
If you get any of that highly corrosive adhesive remover on any of the logic board, or other critical components, then your computer is toast. That's my guess, anyway. I think it's an entirely protective measure to ensure you don't damage or destroy the logic components. And the new battery does have adhesive. It's double-backed tape that's already applied.
The acetone will melt the PCB coatings on the motherboard. If you remove the battery using floss, you don't need to remove everything.
@@InvntdXNEWROMAN I used white spirit, which does the job without being corrosive.
Why not use a hair dryer to loosen the adhesive? :)
How long does this battery life?
Our batteries are designed to last anywhere from 3-5 hours on a full charge, depending on use.
Awesome video OWC!!!
I really miss my Core 2 Duo MBP, when the battery reached the end of it's life, I could replace it in 5 seconds with 2 small latches. This is unfuckingbelieveable. The battery in my 2013 MBP lasted about 4 years then it was useless. So much for extended life so you don't need to replace it! Apple seriously needs to reconsider their design ethics, thinness isn't everything. Who gives a hoot if it's 1mm thinner if it's performance or life is expectancy is impacted!
Was about to do this then saw another guy who just took out a couple screws and broke through the adhesive under the batteries with a bendy scraper thing. Then read through these comments. Seriously you don't need to take the whole thing apart just to replace the battery.
We appreciate your recommendation for another way to do the procedure. How someone replaces their battery is absolutely up to them, we, however, recommend our procedure as we believe it's the best way to replace and not damage any other part of the machine.
Just ordered a new battery for my 2013 retina, fingers crossed the battery is the reason why It won't boot properly.
DID you replace the battery?
What a pain in the groin.
I hate this too. I just got back from the genius bar after waiting a week just for them to tell me that my 2012 mid MBP is vintage and no longer supported. I guess Im supposed to throw it out and buy a new one. Goodbye Apple I am going back to PC!
I wish I could, but I work on cinema VFX and most of the pro software doesn't run on Linux, so I'd have to fall on Windows. from the pan into the fire.
Mmm it doesn’t mean that you can’t fix anything in there. I went to the Genius Bar yesterday and they said that while it is vintage it’s possible to get fixed, it being vintage does not factor into cost in anyway merely that the parts available for repair are scarce.
@@Roman-sl5sn He said I could try other stores but did not offer to check. Parts are scare because Apple wants users to upgrade. They chose what to batteries to keep in stock/order.
@@turkeclipse Lookup Louis Rossmann on youtube, best person on planet to fix any apple device.
I'm ditching Apple after all the BS of trying to get repairs, What wait a minute too OLD to supply parts, you still update the software for this MotheF^&*%$ why would you not supply parts.
My battery kit doesn’t have an adhesive remover. Where can I find it?
MacSales. com No, no. Not at all. Another company’s. Sorry!
@@poweredbyowc The video doesn't explain why it is necessary to remove the rest of the internals, why is this? Seems like the battery could just be pulled out after 2:10 in the video, and removing the retaining screws?
Use a strong dental floss to cut the adhessive tape
I'm only here for the groovy music.
yep, did it with a Costco membership card and some alcohol in hand, u know cause of covid haha
apple should make better batteries better memory better SSD drives. I cannot believe how every MacBook Pro retina I have needs new batteries. and speakers on each mbpr I have purchased since 2008 to current.
Fucking Apple. To replace the most commonly replaced component, REMOVE EVERYTHING and then PUT IT ALL BACK.
WTF , whole computer apart to remove one thing which is on 2 screws and an adhesive ... YOU crazy or what ?
@Zhongjie Chen is right
at minute 5:27 (after watching all those unscrewing and peeling): why? WHY? WHYYYYYYYYY????????!!!!!!!!!!
R u fucking kidding me .....I just HAD to get the model with the ridiculous battery mounting fuck that I’m getting a new laptop
Way tooooooo complicated. Unnecessary steps all over. Look for somewhere else that has much easier method, just removing the battery.
Like 90% of the things shown here were useless...
fuck that. i have no patience doing this crap!
Then.....you buy a new mac
Apple is supposed to be User Friendly!! Unbelievable!! you need a PHD in Electronics to replace a battery :(
It's not that hard at all. It's literally just screw removal and putting everything back.
Apple deliberately makes repairs difficult, if not impossible (often) and deliberately makes parts for their devices not 3rd party manufacturable. It's the 1 and only reason I don't purchase Macs. If I could fix them as easily as any PC could be repaired, I would probably spend the money...but you are correct, when they sell their stuff at already 3X the cost of other products you expect it to be 'better' . And for the most part, they are...but you just can't get around the fact that a battery is just a battery, and they have a lifespan...it's a fact of life. The "pop-out/pop-in batteries of windows laptops are highly preferable to macs. That's point #1. Point #2 is the fact that running a laptop on AC power WITH the batter installed, shortens the lifespan of ANY battery. So, on NON-APPLE products, you are actually able to PULL the battery, and simply run on AC power alone, significantly extending the life of the battery, in most cases past the lifespan of the machine itself. I have a 5 year old laptop myself right now...and the battery has been connected to the laptop only 3-4 times, EVER! You just can't do that on a MacBook. So while people toot the Apple horn...there are many downfalls.
Their software and UI are user friendly, not the hardware. (Also, this is really easy)
Like many of you out there, I've replaced several laptop, tablet, and phone batteries for family and friends. This video is a prime example why I avoid buying Apple products. They're so convincing, so arrogant, and so full of exaggeration while they're unveiling their 'smart and new' product designs. It's misleading because later they very often prove to be actually inferior and poorly thought-out designs. This is a ridiculous battery design that ignores serviceability. Any $2+k notebook shouldn't be considered disposable, even if it's several years old.
They sell absolutely terrible batteries. I have spent more than $200 on their batteries, both lasted for 4-6 months and were at the edge to blow up. There is no quality in their product. Do not BUY!
dirty fingernails def a distraction.
I think it's sad how APPLE BATTERIES GO BAD ON EVERY MacBook Pro RETINA I HAVE OWNED. apple puts in their cheap crap but charges and ARM & LED for their junk that is not worth a penny. their SPEAKERS are AWFUL and same on every MacBook Pro retina I have owned my speakers are always busted. even if I don't use them. the batteries are used as recommenced also you need to unplug your MacBook pro's from power source to drain batteries to keep them healthy. but once again apple makes cheap junk inside the computer so you are forced to buy their expensive parts. I am addicted to Mac APPLE OS X . once you go Mac you won't Go back. is my motto but I hate having to spend a ton of money to replace their cheap crap. I usually don't talk bad about APPLE, but when I heard the news of china having their workers jumping out of their dorms to their death committing suicide because of the CHEAP PAY FROM APPLE AND LIVING CONDITIONS IN THE APARTMENTS I WAS LIKE I AM NOT SURE HOW WE AS A HUMAN BEINGS CAN SUPPORT SUCH A SAD COMPANY AS APPLE. apple is trying everything they can to keep the consumer from replacing parts like a battery and memory or SSD DRIVES. I can understand why they want to make more BILLION$ from their customers. it's not enough that they have already milked us on their cheap parts they choose to use. charging the new prices for the M1 computers is insane. $6000 for a 16" MAC BOOK PRO RETINA M1 that's crazy. the iPhone prices are getting stupid. but what can you do ? nothing. either pay or shut up I guess. they know they have you addicted and there is no way a Mac geek will ever touch a pc.