Comments on: You Can Use A MacBook Pro Power Adapter With a MacBook http://alexking.org/blog/2006/05/23/macbook-power-adapter Alex King, Denver Web Developer Thu, 09 Feb 2012 18:02:12 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Alex http://alexking.org/blog/2006/05/23/macbook-power-adapter#comment-163347 Alex Sat, 01 Oct 2011 21:29:14 +0000 http://www.alexking.org/blog/2006/05/23/macbook-power-adapter/#comment-163347 I understand that is what Apple says, but my experience has been different. http://alexking.org/blog/2008/10/03/macbook-air-battery-advice Your mileage may vary. I understand that is what Apple says, but my experience has been different.

http://alexking.org/[...]ttery-advice

Your mileage may vary.

]]> By: Amer Alsabbagh http://alexking.org/blog/2006/05/23/macbook-power-adapter#comment-163345 Amer Alsabbagh Sat, 01 Oct 2011 21:24:16 +0000 http://www.alexking.org/blog/2006/05/23/macbook-power-adapter/#comment-163345 This is exactly i want to say " Power adapters for Intel-based Apple portables are available in 45W, 60W, and 85W varieties. Although you should always use the proper wattage adapter for your Apple portable, you can use an adapter of a higher wattage without issue. For instance If you have a MacBook (13-inch Late 2009) that normally uses a 60W adapter, you can also use an 85W adapter with that computer. You would not use a 45W adapter with that computer; it would not provide enough power for that MacBook. Using an adapter of higher wattage than the adapter that came with the computer will not cause the computer to charge more quickly or otherwise operate any differently than using the adapter that came with the computer. Source http://support.apple.com/kb/ht2346 This is exactly i want to say ” Power adapters for Intel-based Apple portables are available in 45W, 60W, and 85W varieties. Although you should always use the proper wattage adapter for your Apple portable, you can use an adapter of a higher wattage without issue.

For instance If you have a MacBook (13-inch Late 2009) that normally uses a 60W adapter, you can also use an 85W adapter with that computer. You would not use a 45W adapter with that computer; it would not provide enough power for that MacBook. Using an adapter of higher wattage than the adapter that came with the computer will not cause the computer to charge more quickly or otherwise operate any differently than using the adapter that came with the computer.

Source http://support.apple.com/kb/ht2346

]]> By: Amer Alsabbagh http://alexking.org/blog/2006/05/23/macbook-power-adapter#comment-163343 Amer Alsabbagh Sat, 01 Oct 2011 20:55:21 +0000 http://www.alexking.org/blog/2006/05/23/macbook-power-adapter/#comment-163343 Normally using the Power adapter 85W with any Macbook using from 45- 65W should not be a problem and will work supplying the necessary power that are demanding the System Management Controller (SMC), But at the opposite way you should not use the 45-65W in any Macbook or macbook Pro thats need the 85W, in this case the computer will work but after a time this will cause problem with the battery and even with the main board. because the adapter will not supply the necessary power needs the for System Management Controller (SMC) Normally using the Power adapter 85W with any Macbook using from 45- 65W should not be a problem and will work supplying the necessary power that are demanding the System Management Controller (SMC), But at the opposite way you should not use the 45-65W in any Macbook or macbook Pro thats need the 85W, in this case the computer will work but after a time this will cause problem with the battery and even with the main board. because the adapter will not supply the necessary power needs the for System Management Controller (SMC)

]]> By: Alex http://alexking.org/blog/2006/05/23/macbook-power-adapter#comment-161490 Alex Sat, 17 Sep 2011 00:19:03 +0000 http://www.alexking.org/blog/2006/05/23/macbook-power-adapter/#comment-161490 Power adapters are not an area I'd advise "cheaping out" in. Power adapters are not an area I’d advise “cheaping out” in.

]]> By: DavidHosking http://alexking.org/blog/2006/05/23/macbook-power-adapter#comment-161393 DavidHosking Fri, 16 Sep 2011 08:05:17 +0000 http://www.alexking.org/blog/2006/05/23/macbook-power-adapter/#comment-161393 Killed a 45w Macbook Air adapter by using it to also power a 15inch Mac Book Pro, worked for a while obviously overloaded. Silly me! Thought Appleland would be even better than the PC world where if the plug fits, it works! I am quite experienced in electronics and computers but not apple products! Never had this problem with pc's or mobile phones! Check out Ebay for good cheap replacements for around $25! Killed a 45w Macbook Air adapter by using it to also power a 15inch Mac Book Pro, worked for a while obviously overloaded. Silly me! Thought Appleland would be even better than the PC world where if the plug fits, it works!
I am quite experienced in electronics and computers but not apple products! Never had this problem with pc’s or mobile phones!
Check out Ebay for good cheap replacements for around $25!

]]> By: Aidan Brian Conway http://alexking.org/blog/2006/05/23/macbook-power-adapter#comment-148097 Aidan Brian Conway Fri, 14 Jan 2011 23:00:04 +0000 http://www.alexking.org/blog/2006/05/23/macbook-power-adapter/#comment-148097 I have a 15 inch Mac Book Pro 2.4 ghz i5 and recently one of the kids got a 13 inch mac book pro core 2 duo, I accidentially brought the wrong brick to work and noticed that intermittently it would not charge using the 15inch power cord that i leave at work. This morning i have noticed that the brick from the 13 inch on the cord from the 15 inch plugged into the 13 inch macbook pro will not charge at all, the brick from the 13 inch on a cord from the 15 inch has intermittent problems when plugged into the 15 inch computer and that the cord and brick from the 15 inch works fine in the 13inch if used together shees i have confused myself so it seems that brick and cord must be used together to avoid compatibility issues I have a 15 inch Mac Book Pro 2.4 ghz i5 and recently one of the kids got a 13 inch mac book pro core 2 duo, I accidentially brought the wrong brick to work and noticed that intermittently it would not charge using the 15inch power cord that i leave at work. This morning i have noticed that the brick from the 13 inch on the cord from the 15 inch plugged into the 13 inch macbook pro will not charge at all, the brick from the 13 inch on a cord from the 15 inch has intermittent problems when plugged into the 15 inch computer and that the cord and brick from the 15 inch works fine in the 13inch if used together shees i have confused myself so it seems that brick and cord must be used together to avoid compatibility issues

]]> By: Dan http://alexking.org/blog/2006/05/23/macbook-power-adapter#comment-144292 Dan Mon, 08 Nov 2010 17:43:47 +0000 http://www.alexking.org/blog/2006/05/23/macbook-power-adapter/#comment-144292 I think Apple should take more of the blame. They put out different machines with different electrical needs and package them with power cords that look identical unless you read the fine print with a magnifying glass. A similar case could be made about iPads and iPhones requiring 10 and 5 volts of input respectively but using interchangable cords. When asked, Apple covers its bases by telling you not to switch the cords. But the confusion forces users to burn out their batteries prematurely and therefore need to buy more Apple products. Disgusting. I think Apple should take more of the blame. They put out different machines with different electrical needs and package them with power cords that look identical unless you read the fine print with a magnifying glass. A similar case could be made about iPads and iPhones requiring 10 and 5 volts of input respectively but using interchangable cords. When asked, Apple covers its bases by telling you not to switch the cords. But the confusion forces users to burn out their batteries prematurely and therefore need to buy more Apple products. Disgusting.

]]> By: michael http://alexking.org/blog/2006/05/23/macbook-power-adapter#comment-139302 michael Thu, 19 Aug 2010 23:23:06 +0000 http://www.alexking.org/blog/2006/05/23/macbook-power-adapter/#comment-139302 Thanks this is very helpfull!! Thanks this is very helpfull!!

]]> By: Colin http://alexking.org/blog/2006/05/23/macbook-power-adapter#comment-136908 Colin Fri, 18 Jun 2010 14:27:59 +0000 http://www.alexking.org/blog/2006/05/23/macbook-power-adapter/#comment-136908 @Rasmus Keldorff Exact same situation here--even down to the girlfriend having a MB! I found this forum this morning, because my battery-very weak these days like yours-- died last night, and this morning I couldn't charge it at all. The 60W would charge my MBP in the past, but it seems I crossed a line last night. Of course, all electronic appliances always command you to only use the original adapter that came with them. However, yes, it is definitely NOT widespread knowledge, and the identical appearance of MB and MBP chargers, as well as the general universally-compatible, plug&play culture of Mac all combines into a recipe for MBP battery disaster. USERS BE WARNED! @Rasmus Keldorff

Exact same situation here–even down to the girlfriend having a MB!

I found this forum this morning, because my battery-very weak these days like yours– died last night, and this morning I couldn’t charge it at all. The 60W would charge my MBP in the past, but it seems I crossed a line last night.

Of course, all electronic appliances always command you to only use the original adapter that came with them. However, yes, it is definitely NOT widespread knowledge, and the identical appearance of MB and MBP chargers, as well as the general universally-compatible, plug&play culture of Mac all combines into a recipe for MBP battery disaster.

USERS BE WARNED!

]]> By: artemis http://alexking.org/blog/2006/05/23/macbook-power-adapter#comment-132684 artemis Fri, 26 Mar 2010 03:37:43 +0000 http://www.alexking.org/blog/2006/05/23/macbook-power-adapter/#comment-132684 I just purchased a used macbook pro 13.3 "with the 85W magsafe charger". From other info,this can only be used with the 15 and 17". I have read in this blog that the 85W are cutting the life of the battery? Should I buy a 60W,soon as possible? Also, I am new to mac and would appreciate recommendations of other good info/support sites.Thanks. I just purchased a used macbook pro 13.3 “with the 85W magsafe charger”. From other info,this can only be used with the 15 and 17″. I have read in this blog that the 85W are cutting the life of the battery? Should I buy a 60W,soon as possible? Also, I am new to mac and would appreciate recommendations of other good info/support sites.Thanks.

]]> By: Estêvão Soares http://alexking.org/blog/2006/05/23/macbook-power-adapter#comment-112117 Estêvão Soares Mon, 09 Nov 2009 03:27:04 +0000 http://www.alexking.org/blog/2006/05/23/macbook-power-adapter/#comment-112117 Same as Rasmus Keldorff for me... I was using my girlfriend 60W battery on my MBP... My battery started to charge only 96% and lasts (at best) 1 hour... after that 30min... 20min and now Its no longer working... So, please, pay attention here. DO NOT EVER CHARGE YOUR MACBOOK PRO WITH A 60W CHARGER ;) Same as Rasmus Keldorff for me…

I was using my girlfriend 60W battery on my MBP… My battery started to charge only 96% and lasts (at best) 1 hour… after that 30min… 20min and now Its no longer working…

So, please, pay attention here.

DO NOT EVER CHARGE YOUR MACBOOK PRO WITH A 60W CHARGER ;)

]]> By: Markus http://alexking.org/blog/2006/05/23/macbook-power-adapter#comment-108590 Markus Fri, 30 Oct 2009 18:13:40 +0000 http://www.alexking.org/blog/2006/05/23/macbook-power-adapter/#comment-108590 "Hopefully this will post get picked up by the search engines and the information will be helpful to others with the same question." just what it did. Thank you! “Hopefully this will post get picked up by the search engines and the information will be helpful to others with the same question.”

just what it did. Thank you!

]]> By: Rasmus Keldorff http://alexking.org/blog/2006/05/23/macbook-power-adapter#comment-100438 Rasmus Keldorff Thu, 03 Sep 2009 08:51:21 +0000 http://www.alexking.org/blog/2006/05/23/macbook-power-adapter/#comment-100438 Just wanted to chime in to say I have similar experiences. I have an MBP at work, wife has an MB. I've been charging the MBP at home using her MB charger for around a year. We hadn't noticed any ill effects as such, frankly we were not even aware that there could be a problem; However, in retrospect I can now affirm that doing this does **degrade** the battery life of the MBP significantly; my battery now lasts less than an hour. Also, we have recently noticed that the adapter and thin Magsafe lead run **very** hot to the touch, and have started to worry. I will be looking at buying an extra MBP charger for home use, and thinking about buying a new battery. I wish this information was more widespread so I wouldn't have ruined the battery... Just wanted to chime in to say I have similar experiences. I have an MBP at work, wife has an MB. I’ve been charging the MBP at home using her MB charger for around a year. We hadn’t noticed any ill effects as such, frankly we were not even aware that there could be a problem; However, in retrospect I can now affirm that doing this does **degrade** the battery life of the MBP significantly; my battery now lasts less than an hour. Also, we have recently noticed that the adapter and thin Magsafe lead run **very** hot to the touch, and have started to worry. I will be looking at buying an extra MBP charger for home use, and thinking about buying a new battery. I wish this information was more widespread so I wouldn’t have ruined the battery…

]]> By: hadi http://alexking.org/blog/2006/05/23/macbook-power-adapter#comment-94173 hadi Sat, 22 Aug 2009 07:43:09 +0000 http://www.alexking.org/blog/2006/05/23/macbook-power-adapter/#comment-94173 Useful info! got exactly the info that i need in this article of yours when i googled it! Thank you! still relevant til today! just got a new 13in macbook pro and want to use my old magsafe (85watt - from the first generation macbook pro!) adapter at the office, now that i know it is safe, i'm very happy not having to lug my adapter around with me from home to office :) Useful info! got exactly the info that i need in this article of yours when i googled it! Thank you! still relevant til today! just got a new 13in macbook pro and want to use my old magsafe (85watt – from the first generation macbook pro!) adapter at the office, now that i know it is safe, i’m very happy not having to lug my adapter around with me from home to office :)

]]> By: Stef http://alexking.org/blog/2006/05/23/macbook-power-adapter#comment-93103 Stef Sun, 16 Aug 2009 18:05:25 +0000 http://www.alexking.org/blog/2006/05/23/macbook-power-adapter/#comment-93103 lol, I just came back from a trip with my new 15 inch macbook pro, and left the charger behind. I decided to make absolutely sure that my old 60 watt macbook charger would work fine (only concerned because I love the new 8 hour battery soooo much!), when I realised that I had mixed up my chargers, and that the charger that I left on said trip is actually the 60 watt, and has been charging my computer for a month! I think that my lack of issues (or really any noticable difference at all), serves to prove that mixing and matching chargers is fine, at least for a month!! lol, I just came back from a trip with my new 15 inch macbook pro, and left the charger behind. I decided to make absolutely sure that my old 60 watt macbook charger would work fine (only concerned because I love the new 8 hour battery soooo much!), when I realised that I had mixed up my chargers, and that the charger that I left on said trip is actually the 60 watt, and has been charging my computer for a month! I think that my lack of issues (or really any noticable difference at all), serves to prove that mixing and matching chargers is fine, at least for a month!!

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