Which MagSafe Power Adapter?

I have a MacBook Pro 5.4, 15" screen, purchased in 2009 I think. It came w. a 60W MagSafe Power Adapter. I want to purchase a 2nd power adapter for my alternate work site. I see that an 85W MagSafe is being specified for the 15" PowerBook Pro. Is the 60W one I have all right to use, and should I buy the second one as an 85W?

What about using the 85W Mag Safe 2 Power Adapter (used on MacBook Pro) for my MacBook Air which comes with a 45W Mag Safe 2 Power Adapter? Is there a problem with that?

Similar Messages

  • I need help identifying which Magsafe Power Adapter I need for my Macbook Pro Model A1398, EMC 2673?

    I need help identifying which Magsafe Power Adapter I need for my Macbook Pro Model A1398, EMC 2673?

    Provided the computer-end fits, you are free to use one with a HIGHER Wattage rating. No damage whatsoever will be done to any component, but it will likely run cooler (but may be slightly heavier).
    If you use one with too LOW a Wattage rating, you will not be able to charge and run at the same time, and your computer's top speed (for its most intensive computations) will be limited.

  • Why does it take me so many tries before I can get the amber and/ or green light to come on, on my MagSafe power adapter?

    I have been having a problem for a little while now, and I have decided to overlook it for the most part. However, it is really starting to get on my nerves. The issue I don't believe is with the MacBook Pro itself, however with the MagSafe power adapter. The adapter itself is in great condition, it is brand new, but when I attach it to the computer, the computer reads that it is there, as it shows it is charging or is charged as shown by the battery indicator in the top right of the OS X toolbar. However, the amber and/ or green light doesn't come on, right away - the first time - most of the time, on the adapter head itself. I usually have to unplug it and plug it back in multiple times before I get a light to come on. I have tried to clean the adapter itself, and the MagSafe port on the computer, but that seems to only help for a short amount of time, and it doesn't look real dirty, or like any pins are stuck on the adapter. I have also tried other outlets, but that doesn't seem to help, so I don't think I am getting dirty power.

    Unfortunately, it *could* be the computer. And it could be the adapter.  Aside from trying Resetting the System Management Controller there's not much you can do except taking it in for testing.

  • Question about MagSafe Power Adapter

    I just got a new magsafe power adapter and wanted to know if leaving it connected to the electricity for too long damage it?
    Last question, my battery is dead, should I take it off andrun on the adapter, or just leave the battery on?
    A friend of mine told me tht "dead batteries" ruin power adapter?
    Thanks all

    I'm afraid you should buy a new battery, Frank.
    Running on the power adaptor alone will slow down your MBP. - see http://support.apple.com/kb/HT2332
    Running with a seriously defective battery installed, though, may not only place a heavy load on your adaptor but may result in the battery deforming (causing other damage) or worse.
    Leaving your adaptor plugged into the power when not being used probably won't hurt it, but it will use more electricity than a fluoro lightbulb.
    Rod

  • HT4124 can I keep the magsafe power adapter plugged in to computer all the time?

    Can I keep the magsafe power adapter plugged in to my computer from the power source at all times?

    it is ok to keep it in all the time, BUT at least once a month let it run the battery down to 10-15% then do a full recharge.

  • Hello, My white McBook (2008 or 2009) recently stopped turning on.  When I hook up the Magsafe power adapter, the light shows green, but the computer will not turn on, or make a sound.  I've tried the re-boot option, but nothing works.  Please advise!

    Hello,
    My white McBook (2008 or 2009) recently stopped turning on.  When I hook up the Magsafe power adapter, the light shows green, but the computer will not turn on, or make a sound.  I've tried the re-boot option, but nothing works.  I first thought I needed a new battery because the lights at the back are all off, but shouldn't the computer turn on once the power adapter is hooked up and the light on the Magsafe adapter shows green?  I'm a computer doofus, so please be kind.  Please advise!  Thanks in advance.
    SS

    Take it in for service.

  • Can you plug in your 60w magsafe power adapter to peru without harming it?

    Can you plug in your 60w magsafe power adapter to peru without harming it?

    Yes you will need a plug adapter, the power supply is rated for 100v-240v. Apple has a travel kit full of adapters you could also check the web for a particular one for your needs.
    http://store.apple.com/us/product/MB974ZM/B/apple-world-travel-adapter-kit
    Hope this helps.

  • Old ver. 60W MagSafe Power Adapter (Input: AC 100-240V 50/60Hz, Output:  16.5V---3.65A)

    Hello,
    I bought 60W MagSafe Power Adapter (Input: AC 100-240V 50/60Hz, Output: 16.5V---3.65A) in Hong Kong
    Can I use it in the U.S.??
    Thanks!!

    I am still needing a response to this issue to determine if I need to return the power adapter.  Thanks so much!

  • Can I used my New MBP13' with a 85W MagSafe Power Adapter

    I just bought a new MBP 13' with MagSafe 60W. Can I used my old Charger 85W(My old MBP Mid 2008 85W MagSafe Power Adapter) It does work, but what will happen to the battery? will it ruin the battery life? will it overcharged?

    No it won't do any harm
    (It will just draw what's required and then shut off as normal)

  • 60W MagSafe Power Adapter no longer working?

    Hi,
    I have the 2009 MacBook Pro and I recently have been having trouble with my MagSafe Power Adapter. I checked if it was just the cord that wasn't working properly, so I switched out the adapter and put in the extension cord instead, same issue. Then I checked to see if it was my battery in my MacBook and used a different charger, this one charged it. I checked with another MacBook and it didn't charge it as well. Anyone know if Apple Care takes care of this or I actually have Best Buy's Geek Squad coverage would this cover it?
    If anyone knows anyway to fix it it'd be greatly appreaciated because I don't want to buy the new MagSafe Power Adapter with the weird silver handle because in my experience those don't hold in as well as the old ones.

    Linda.h wrote:
    Hi,
    I have the 2009 MacBook Pro and I recently have been having trouble with my MagSafe Power Adapter. I checked if it was just the cord that wasn't working properly, so I switched out the adapter and put in the extension cord instead, same issue. Then I checked to see if it was my battery in my MacBook and used a different charger, this one charged it. I checked with another MacBook and it didn't charge it as well. Anyone know if Apple Care takes care of this or I actually have Best Buy's Geek Squad coverage would this cover it?
    If anyone knows anyway to fix it it'd be greatly appreaciated because I don't want to buy the new MagSafe Power Adapter with the weird silver handle because in my experience those don't hold in as well as the old ones.
    Occasionally, the adapter does die out, so you've done everything to test it out, indicating it is gone. If you have the standard warranty, then you have a year from purchase, or three years if you purchased the extended AppleCare. I'm sure if you take it down to your local Apple store (bring your laptop with you), they'll diagnose it. And they probably have replacement adapters in stock.
    Don't know anything about the Best Buy thing. Given the strength of Apple's warranty and service, you may have overspent for their coverage.

  • 85w Magsafe Power Adapter Plastic cover

    THe 85w Magsafe Power adapter comes with a plastic protective cover for the magnetic DC connector . I lost mine. Does anyone know if Apple or anyone else sells it. Im just really bothered by it. Plus I dont want dust to accumulate on the magnetic DC connector.

    Retired Engineer wrote:
    The magnet is in the MBP not in the connector on the AC adapter.
    i'm not really sure about that. I wish you could just answer my query and be helpful. Or correct me and at the same time offer a solution or answer to the question. That would really help. Don't post if you don't want to help.
    But for arguments sake. According to:
    http://store.apple.com/1-800-MY-APPLE/WebObjects/AppleStore.woa/wa/RSLID?mco=816 A0BD3&fnode=home/shopmac/macaccessories/power&nplm=MA938LL/A#overview
    "The 85 Watt MagSafe Power Adapter features a MAGNETIC DC CONNECTOR that ensures your power cable will disconnect if it experiences undue strain and helps prevent fraying or weakening of the cables over time. In addition, the MAGNETIC DC helps guide the plug into the system for a quick and secure connection.
    plus, this apple page:
    http://www.apple.com/macbookpro/design.html
    says that,
    "Innovative right down to the power cord._The MacBook Pro power adapter with MagSafe connector is just that: a magnetic connection instead of a physical one._"
    I dont know, maybe the mbp connector has a magnet also, but im very sure according to apple the 85w Magsafe adapter has a magnet.
    Anyway, it doesnt really matter to me where the magnet is. As long as it magnetically connects.

  • Minor Problem with MagSafe Power Adapter

    I got my MBP almost a year ago now (partially why I'm asking the question) and I've noticed that my power adapter doesn't always show the charge light. Sometimes it is not on at all, and sometimes it is less bright in color (both green and amber).
    If I remove it and put it back it usually corrects itself.
    It if fully functional; even if the light is completely out and plugged in it still shows as charging.
    So, is this normal? I never remember having this sort of problem with my PB G4.

    I would think the led light on my adapter cable was broken, but I discovered it works fine on a co-workers MBP. His adapter, which we know works, does NOT work (ie. the led does not come on) when attached to my computer. This indicate to me that the problem, whatever it is, can sometimes be with the computer and not the adapter.
    I would be curious if others with apparently dead leds have tried their chargers on other MBPs.
    Here's the long version of my story:
    My 5W MagSafe completely fried after only 9 months.
    The new adapter was fine for several days until this morning.
    My "low battery" warning popped up, so so I plugged it in to recharge and immediately noticed the little led on the charger cord did not come on.
    I found it hard to believe that I had another bad adapter, so before making the trip back to the store, I went into the studio where there are some other MBP users.
    I plugged my adapter into another laptop and the led came on. It appeared to function completely normally. I tried MagSafe adapters from two other MBPs, but the led did not come on on either of them while attached to my computer.
    This made me think there was some sort of problem with the connector on the computer itself. Just visually, it appears to be clean and corrosion free.
    The next obvious step, it seemed, would have been to try swapping batteries with the other laptops, but mine is a 17" and everyone else here has 15"... and so we have different battery sizes.
    One of the people here at the studio had a little utility called "Coconut Battery", that reports information about the battery health. When I ran it on my laptop, I got what I thought were rather surprising results.
    It showed the usual things like current charge (21%), battery capacity and so on. But under "Additional Info" it said "Charger connected: Yes" and "Battery is charging: No".
    I figured this narrowed it down to a problem with the battery. But as I was showing these results to my co-worker, the "Current Battery Charge" changed from 21 to 22%. Huh? We left it plugged in and it continued to show a steady climb in the charge, as if it is working normally. Except there is no led light, and the software still says it is not charging. Odd.
    I then noticed that the built-in battery level indicator on the status bar was also showing the same increases. The led lights on the back of the battery are indicating an increase as well.
    Just out of curiosity, I ran a second battery health analyzer program and again got these conflicting results. This one reported the same battery charge and capacity and so on as the previous one. It also recognized that the laptop was running off of AC power, that there was a battery, but it said "Not Chargeable."
    So now I am going to let it continue until I have a full charge and then see if the computer will run as usual from the battery.
    I don't think the store here is going to give me another adapter since this one appears to work just fine on the other computers.
    Any thoughts on why the led would work on other laptops but not mine?
    Why the battery health monitors report that the battery is being charged, but also that it is "not chargeable"?

  • Replacing the plastic cap on the magsafe power adapter

    I really love the tiny plastic caps that Apple sticks on top of the magsafe power adaptors, but alas! I finally lost mine today and am wondering where I can find a replacement (or two, or three). I have had no luck searching online for a solution.
    Please advise!
    Thanks,
    Michael

    Just wondering whether anybody else who has lost the magsafe adapter's plastic cap knows where to track down a replacement. It seems like a common item to lose, yet I can't find a vendor, including Apple, that is selling replacements. I'm worried that the adapter might get dirty or ruined from exposure to dust and other particles.
    Thanks for your help!
    -Michael
    I really love the tiny plastic caps that Apple sticks
    on top of the magsafe power adaptors, but alas! I
    finally lost mine today and am wondering where I can
    find a replacement (or two, or three). I have had no
    luck searching online for a solution.
    Please advise!
    Thanks,
    Michael

  • 85W or 60W MagSafe power adapter?

    I'm buying an extra power adapter for my MacBook to use at the office.
    Both the 85 watt MacBook Pro and 60 watt MacBook power adapters have MagSafe on them. They are both the same price. Should I consider the 85 watt adapter for my black MacBook? I was thinking that I could get the larger wattage version so that I'm not fully taxing the unit, allowing it to run cooler and potentially prolonging the life.
    I know this is kind of an off-the-wall question, but I'm curious about these things. Any thoughts are welcome.

    It's easy these are very good instructions on How to Upgrade Your MacBook's Hard Drive.
    Here is the Apple Apples DIY hard drive replacement instructions.
    The only step they left out is the need for a number 8 *Torx Driver* to swap a shield from the old drive to the new. Apples DIY Warranty Info
    I bought this drive.
    Western Digital Scorpio WD3200BEVT 320GB 5400 RPM 8MB Cache SATA 3.0Gb/s Notebook Hard Drive - OEM
    I also bought an enclosure to put my old 80 GB drive in and used it to recover my system with. It also is now used for storage. No sense wasting good drive:->
    OWC Hard Drive Enclosures
    These are are good sources.
    OWC MacBook Ram and Hard drives
    NewEgg.com LapTop Hard Drives

  • Can I use my old magsafe power adapter?

    I just bought MacBook Air, because my MacBook Pro died... I need two magsafe power adapters (for work and home) and I was wondering whether I could use my old ones from my MacBook Pro? The watt is way off, though (85 W versus 45W). Any experiences?
    Thank you,
    Andrea

    Yes, you can use the adapter of a higher wattage. 
    http://support.apple.com/kb/HT2346

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