2
votes
0answers
32 views

Earthed (Grounded) Stubby Plug for MacBook AC Adapter

Much hay has been made of the apparent grounding issue while using the stubby plug on a MacBook AC adapter. While I understand it is completely safe to have a bit of grounding flowing through the ...
1
vote
1answer
221 views

MacBook Pro Battery Problems

I have a MacBook Pro late-2012 model. And my cable started showing symptoms of fraying. So I ordered an offbrand cable from Amazon with good reviews and it arrived today and I tried it and the Mac ...
1
vote
0answers
52 views

Macbook Pro (Mid 2010) replacement power supply issue

I have a multi macbook/macbook pro household, made up of a 2006 mb, mid 2008 mbp, and mid2010 mbp models. I recently purchased a new 85 watt power supply and immediately noticed that it would not ...
0
votes
2answers
68 views

Overheating problem in MacBook Pro

I have MacBook Pro I bought 6 months ago. When I charge it, it overheats in the charging port and my charging adapter is also hot. Should I return it or keep using it?
4
votes
5answers
445 views

No Batteries Available ?-How to Check battery health on MacBook Pro early 2011

A few days ago, I went on vacation and unplugged power cable from my MacBook Pro 13' early 2011 and then I got back home, the battery was not detected by OS and didn't charge. I then understood that I ...
2
votes
2answers
1k views

Are L-shaped and T-shaped Magsafe 1 interchangeable? [duplicate]

I want to buy replacement Magsafe 1 cable for my MBP 17" Late 2011, and they are available in two options — L-shaped and T-shaped. My computer was shipped with L-shaped connector, however I want to ...
0
votes
1answer
484 views

Correct battery voltage for new MacBook Pro battery

I have a 17" Macbook Pro (5,2 mid 2009, MC226LL/A) that has a battery that is in need of being replaced. I'm looking for the correct battery for it and have found various batteries that say they are ...
2
votes
2answers
348 views

Can I charge my Samsung Omnia W with MacBook Pro USB port?

Currently, I am using a Samsung Omnia W and mostly I am using my MacBook Pro's USB port for charging it. Is it fine for charging the battery in the mobile phone? Sometimes, I have received a 'high ...
0
votes
2answers
130 views

How to charge the MacBook Pro from 12 Volts?

Aim: I would like to charge my MacBook Pro (MBP) form a 12V lead-acid battery. However there are no official chargers from Apple for that purpose. There exist quite some alternative products on the ...
0
votes
1answer
129 views

Is there a way to view and control the powerstate of the discrete GPU on a 2011 MBP in OSX?

I noticed that running with the discrete GPU uses more power and generates more heat. I just need the discrete GPU to drive an external monitor, I'm not concerned about performance. By controling the ...
1
vote
0answers
364 views

Dim LED on Magsafe, Macbook Pro won't boot

I have a Macbook Pro late 2008, and today, it suddenly decided to stop booting. The battery level is very low, and connecting the adapter to it shows a very dim green light on the Magsafe connector. ...
3
votes
1answer
1k views

Magsafe light occasionally turns off while plugged in

Every once in a while, the green light on my Magsafe adapter will turn off, but the computer will indicate that it's still running off of AC power. If I unplug the adapter from the computer and then ...
0
votes
2answers
85 views

MacBook Pro Hibernates Straight Away

Whenever my Mac goes to sleep when its on battery, it straight away saves its contents to the hard drive and powers off, going into a deep sleep. This gets really annoying when I walk away for 10 ...
0
votes
1answer
94 views

Mac book charger

Will using a 45w charger on my mac book pro 13 that came with a 60w charger cause operating problems? Sine using a 45w charger my laptop cannot get past the grey/white loading screen?
1
vote
2answers
630 views

How to reduce MacBook Air 2013 1.7GHz CPU power consumption?

I'm seeking a way to reduce MacBook Air 2013 1.7GHz CPU power consumption -- or any MacBook for that matter -- to save battery life. I want to vary the CPU power consumption variably, so that I can ...
2
votes
3answers
4k views

Out of warranty MBP ,Burned Magsafe port and frayed charger cable - repair option and cost?

I have a MBP 15" 2011 model and has is the burned magsafe port (leftmost pin melted) which i noticed today. The connector gets too hot sometimes ( but remains ok when I charge in sleep mode). ...
2
votes
1answer
298 views

No power through USB for Roland A-49

I just plugged my Roland A-49 to my MacBook Pro (Early 2011 2.3 GHz). The MIDI keyboard would have its power supplied via USB, but it has no power. The specification says it needs 98 mA current, which ...
1
vote
1answer
157 views

Will one power adapter work with all shipping MacBook Air and Pro as of March 2013?

I have a Late-2008 Macbook White (MacBook4,1) model, and my AC Adapter broke. Now I want to buy replacement adapter, but since I am going to upgrade to a MBP13 or MBP15 in the next 1-2 years, I want ...
0
votes
1answer
611 views

Macbook Pro Mid 2010 not powering up after smc update

Macbook Pro Mid 2010 after SMC update 1.7 shuts down and now by pressing power button front light turning on for a few seconds, optical drive makes it's usual noise but no activity on monitor happens ...
1
vote
0answers
408 views

Fluctuating voltage on Magsafe charger

I got two Apple Magsafe charges, one for which I needed to cut and rejoint the cables. The fix went well and now when I plug in the charger it works and charges my Macbook Pro. Though when I measured ...
0
votes
1answer
353 views

MacBook Pro battery charging stops early

I have a Mac Book Pro 15" over a year now. I'm having a problem with charging the battery. During work it stops charging and goes to battery powered mode. If I switch to a different power source it ...
12
votes
5answers
12k views

What would happen if I use a Macbook Air Powersupply with a 15" MacBook Pro Retina (or vice versa)

My girlfriend has a Macbook Air. The power supply is smaller and lighter than the Pro. It has an output of 14.85V and 3.05Amps. My Pro Retina has a power supply that is 20V and 4.25 Amps. Both ...
0
votes
2answers
1k views

Should I use an extension power cord instead?

I have the following Apple MacBook Pro Power adapter: 60W MagSafe PV85 Ouptput 16.5v--3.65A ADP-60AD T Model No. A1344 Instead of buying a Power Adapter, is it ok to buy an Extension power ...
1
vote
1answer
2k views

How can I force my laptop to shut down when I close the lid?

I'd like my Mac laptops to shut down completely when I close the lid. This is partly for convenience and partly for security reasons. I couldn't find a way to do this in the System Preferences (OS ...
7
votes
3answers
13k views

Can i use my old MacBook charger on my new Mac?

I have a 2011 15" MBP, that uses a 85W power supply. My old 2008 MBP 15" also has a 85W power supply, but I cannot get it to work. Shouldnt it? Its the same watt power, and the adapter fits.
0
votes
1answer
504 views

Is grounding important?

Is the grounding wire forwarded to the Magsafe connector? There are these 2/3 pin adapters and it's so much easier to convert a 2 prong connector while travelling than the bulky three prong ones. I do ...
0
votes
1answer
593 views

Old MacBook power adapter on new MacBook Pro?

I have a 60W power adapter from my old 2008 MacBook. Can I use this power adapter on a new 13" MacBook Pro, which also came with a 60W power adapter? However the two power adapters have two ...
6
votes
3answers
14k views

Does closing the lid put a MacBook Pro to sleep? Would it hurt the computer if I carry it around without shutting it down?

When I first got my MacBook Pro, it took less than 30 seconds to start up. Now, after several months, it takes about two minutes to startup and I can tell that it is not as responsive when using some ...
3
votes
1answer
291 views

85W MagSafe adapter only delivers 77W?

My late 2011 17" MBP was delivered with an 85W MagSafe adapter. Under heavy stress (either CPU and/or GPU) the MBP has to draw additional power from the battery in order to keep everything running. ...
1
vote
1answer
164 views

Late 2008 MacBook Pro no longer wakes up on its own

Plain and simple here: about one week ago, my MacBook Pro stopped adhering to its wake schedule. I have had it set to wake every weekday at 6 a.m. for as long as I can remember. It has done so with ...
1
vote
2answers
782 views

Will a MacBook Pro (15-inch, Mid 2010) power up in clamshell mode?

Although part of my problem is covered here - Powering on while the lid is closed in clamshell mode, it alone doesn't solve my query. I'm trying to turn my MBP into a server, and because of that I ...
3
votes
2answers
1k views

Battery issue with MacBook Pro 13 inch (Early 2011)

So, around June 2011 I finally had the chance to buy my first Macbook Pro (13 inches, i5) But recently, I've noticed something wrong with my battery! Actually with only 2 months of use, I was under ...
4
votes
2answers
151 views

Unexplainable large number of cycles of MacBook Battery

My battery is a year old, but it has 189 cycles. Why is this? I always use my MacBook with the charger plugged in and very rarely without the charger.
2
votes
3answers
2k views

I have a 2008 Macbook Pro will a 85w power cord work?

I have a 2008 Macbook Pro and my cat recently chew through that power cord. I bought a 85w adpater but I don't want to open it if I know it won't work. Does an 85w work with a 2008 Macbook pro or ...
2
votes
1answer
765 views

Are there no explicit Power modes in Mac?

Does Macbook Pro not provide power modes (Power Saver, High Performance, etc) like a Windows laptop? If there is nothing like that, then I'd assume that OS X manages optimal settings itself. Or is ...
7
votes
7answers
9k views

How can I avoid my MacBook Pro giving me minor shocks?

The aluminum Macbook Pro gives a mild shock when connected to a wall socket and charging. It only happens when I'm, for example, not wearing shoes or slippers and my feet are resting on the ground ...
1
vote
2answers
380 views

Transporting from home to work (~10 min by car), should I just make my MacBook Pro sleep, or shut it completely down first?

I just got a new MacBook Pro, and is looking at how the power modes work, and according to this article: About Energy Saver sleep and idle modes in Mac OS X, making it sleep by closing the lid (say) ...
0
votes
1answer
99 views

Power Macbook Air with Early 2008 Macbook Pro

I have two batteries from my old 15" Macbook Pro Core 2 Duo (Early 2008). It's a non-unibody (discrete) model. Anyone know of any way to use these batteries to power my 2nd Gen Macbook Air? An ...
2
votes
3answers
8k views

MacBook Pro 2011 logging itself out after a period of inactivity

when I am not using it, at some point, every day, my MBP tries to log out on its own. When I 'wake it up' I can see message windows about "applications aborting logout", obviously because some ...
2
votes
2answers
314 views

I am only seeing 1:50 of estimated run time on a new MacBook Pro battery. Problems?

I have bought brand new MacBook pro 15-inch model with highest specifications in this June. I have also installed newest Mac OS, Lion. However, how it could be strange, when cable is not plugged it, ...
1
vote
2answers
441 views

Intermittent charge on Macbook Pro

I have a 2010 Macbook Pro with a MagSafe T Power adapter. The power adapter makes a buzzing/hissing/fuzzy noise when it is plugged into the wall. When it is plugged into my mac, my light turns green ...
2
votes
1answer
640 views

For a Macbook Pro, what are some recommend power plan settings for Windows 7 via Bootcamp

I would like to ask if anyone has some recommendations on some of the specific settings for Window power plans (especially advanced parameters) for a Macbook Pro. For me specifically I have an early ...
5
votes
1answer
10k views

MacBook Pro Charger has stopped working properly - any short-term fixes?

I have a MacBook Pro 15", about a year old. Today, the charger started working only intermittently. I've seen a few other people talking about similar problems, and most people say it's a problem with ...
31
votes
9answers
42k views

Can a 60W MagSafe power adapter work interchangeably on a Macbook Pro that “requires” an 85W adapter?

I have a 13" Macbook Pro that came with a 60W power adapter and a 15" Macbook Pro that came with a 85W power adapter. Can I use either adapter with either laptop? There seems to be disagreement in the ...
2
votes
5answers
747 views

I think I have bricked my MacBook Pro, what are my options to get it fixed?

I have been having power issues with my MacBook Pro (late 2007?). The power cable had a dodgy connection, and kept cutting out. This destroyed the life of the battery to the point where it would only ...
0
votes
2answers
1k views

MacBook will not turn on

I have a MacBook pro and it won't turn on. Basically I press the power button and the White light at the front turns on. Then a few seconds later it just crashes and the White light goes off then the ...
3
votes
2answers
6k views

Is there a presentation mode on mac?

When watching a video, or making a presentation, is there an option or a tool to disable all screensaving, energy savings and all? Regardless of if the power is plugged, I'd like to keep the screen ...
10
votes
2answers
3k views

Should I use the adapter or the battery?

I want to know when my MBP's battery was fully charged it's better to unplug my adapter and use my battery power or still let use adapter power? I somewhere read that when MBP's battery was fully ...
3
votes
1answer
4k views

Why does battery die during sleep mode?

I'm running MacOSX 10.5.8 on a MacBook Pro. I was working on my computer last night. I finished work, closed the lid and expected the computer to go to sleep. I assume this is the Apple Safe Sleep ...