The electricity drained by a device

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118 views

Pinout and specs on 150W Cinema Display A1098 power supply?

I've inherited a 30" Apple Cinema Display. It's in great condition except for one thing: no power supply. I could pay $150+ for a used power supply on eBay, but -- with my past life as a ...
0
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0answers
26 views

13" mid 2007 Macbook, battery / power supply issue (white, A1181 model)

So, I have mistreated my macbook somewhat and would like to repair the damage. The problem is, there is "no battery supply", the icon at the top bar is a battery with a cross through it. There are ...
0
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0answers
70 views

Macbook Pro logic board getting no voltage

Laptop: MacBook Pro 13" Retina Display Late 2013 Logic Board: 820-3476 I have been doing testing on my logic board with the board removed from the computer and just plugging in the charger. I had an ...
0
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1answer
117 views

How to eliminate noise on iPad analog/headphone output?

I'm a musician with a home studio. I've been wanting to incorporate my iOS devices (iPad 3, iPad mini retina, and iPhone 4s) into my music making for years, but only recently have synchronization and ...
1
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1answer
33 views

If I buy a power adapter from the online Australian Apple Store, will it match Australian outlets?

I want a power adapter for a MacBook Air that matches Australian outlets (without a separate adapter). It seems reasonable that if I buy such a thing from http://www.apple.com/au, it will have the ...
3
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2answers
88 views

Explanation for wrong charging wattage / slow charging?

I have a 2013 Retina MBP and a fairly new 85 W Magsafe 2 charger. But when I connect this charger to my Macbook and check in Battery Health, it claims that it is receiving only 49 W. Does anyone ...
1
vote
1answer
95 views

MacBook Pro Boots only with a pressed key

I'm having a bizarre issue with my early 2011 Macbook 15'. I grabbed it today without battery power só the first thing I diz was to plug the MagSafe adapter. Afterwards I pressed the power button. It ...
5
votes
1answer
550 views

Use caffeinate to prevent sleep on lid close on battery

The native caffeinate utility is not working to prevent my macbook from sleeping when I close the display. Instead, the system sleeps and various network services ( VPN, screenshares, VOIP calls, ...
0
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1answer
382 views

Macbook Pro (Mid 2012) Battery Not Charging

I have a Macbook Pro (Mid 2012) 13" unibody and having issues with a battery that is not charging. Here are the specifics: Battery is not charging Magsafe light not illuminating at all Macbook is ...
0
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2answers
127 views

MacBook Pro battery will not charge even though cycle count is below max count

I haven't used my MacBook Pro (Mid 2011 version with non-removable battery) for over 6 months, as I was out of country. Now it only works on power connected and battery won't change. Symptoms I ...
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0answers
33 views

Can a 15" Retina MBP running 10.11 (El Capitan) determine if the attached power source is using a MagSafe adapter?

I have a first generation 15" Retina MBP. Recently there have been times when it runs out of power even though I'm plugged in. I have tracked it down to charging being intermittent if anything but a ...
3
votes
2answers
52 views

Is it safe to discharge my body's static electricity onto my MacBook Pro?

Often in the winter (low humidity), getting up from and sitting down onto the seat at my desk, or taking off a jacket, and such will build up a static electric charge on my body. Sometimes I don't ...
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0answers
38 views

iPad 2, IOS 8.x, power issues, freezes when screen turns off

My iPad 2 64GB non 3G has stopped working and need help diagnosing what component is broken. When I would click the power button to turn the screen off or let it auto-lock after 2 or so minutes, I ...
0
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0answers
37 views

plug in charger when using OR charge it when low battery

I am working in an office for 8 hours a day. And I am using a macbook pro retina 2015 during that 8 hours for work. What habit should I be use to treat the battery better. There are two choices for ...
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2answers
33 views

Current power consumption [duplicate]

Is there a way to know the current (or average power consumption) on OS X (a Mac Mini without battery). Preferred would be a command line tool but anything is OK.
1
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1answer
25 views

MacBook power cable with mounting holes

my question is, if there is MacBook power cable with mounting holes. I think better picture than thousand words, I mean this power cable end: with mounting holes, somehow like this:
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0answers
48 views

Macbook 13" mid 2009 not charging nor starting

I disconnected the battery (A1331) on my Macbook 13" white polycarbonate unibody to install a second SSD in place of the unused DVD. I was also upgrading the RAM, that's why I decided to ignore the ...
2
votes
1answer
107 views

Why doesn't a stripped/cracked MagSafe power cable shock?

Behold, the fate of all (poorly handled) MagSafe power cables: Why doesn't this shock me? I've read that MagSafe cables are low voltage, but I don't even get a tingle. Is there any danger of shock,...
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0answers
19 views

power status of MBP 13" (Early 2015)

I have the hibernate mode set to 25 but I think the laptop is not hibernating when I close the lid. In earlier versions of MBP there used to be a LED light available on the right-hand side of the ...
3
votes
3answers
4k views

Can I (or should I) use a MacBook charger on my iPhone?

I recently got a MacBook with the USB-C charger. It comes with a 29-watt power brick, and I was wondering if I should use this to charge my iPhone. I've heard that the iPad power brick (I think 10 ...
0
votes
1answer
52 views

Battery cannot charge fully

I replaced battery on my MBA mid 2011 (A1369). Here is the report by coconut(the same appears in system report): I bought no name battery from china and changed it personally (here they ask about ...
2
votes
1answer
204 views

My (unbroken) iPhone won't turn on!

I have an iPhone 5. The only issue it's had is that the battery life wasn't so great as it once was... until now. Earlier the battery went flat and it switched to this screen Totally normal. So I ...
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0answers
31 views

What wattage of passthrough charging does the Lighting port enable for MFi devices?

I understand that with the "Made For iPhone" (MFi) program, you can do passthrough charging/powering. What wattage does this support?
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vote
1answer
263 views

Can I unplug my Mac mini from power once it's in hibernate mode?

Suppose I want to work on my Mac mini here, reach a certain point in my work, then put it in hibernate mode and unplug the power. From what I understand the hibernate mode will save the status of the ...
1
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1answer
160 views

How to turn MacBook Air 2015 on if the power button is broken and I don't have tools to remove battery?

The power button on my macbook air 2015 is not functional and I don't have the correct screwdriver to open the back up and take out the battery. Is it possible to turn the laptop on without having to ...
0
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0answers
11 views

MacBook Pro wouldn't charge but Apple ASP say it does

I had an issue that my MacBook Pro wouldn't charge (the LED on the charger didn't light up either) so Apple directly sent me out a replacement charger which also wouldn't change it (also same as the ...
1
vote
1answer
92 views

Fixing Mac Mini that uses 10x normal power in sleep mode

When I return to my Mac Mini in the morning, the case is warm to the touch, even though at that point it's been sleeping for hours with the display off. According to https://www.apple.com/environment/...
1
vote
1answer
75 views

Magsafe charger behaving strange

I have a Macbook Pro 15 late 2011. The charger has started to act funky the last few days. What happens is that I connect it. Light shows as green on the connector and then switches to orange if it ...
1
vote
0answers
189 views

MBP randomly waking from sleep/hibernation

I Have a Mid-2010 Macbook Pro. For many months I've been running a version of Yosemite without issues, but I just upgraded to 10.10.5 this week. I think I was running 10.10.3 before but I don't ...
0
votes
3answers
340 views

85W MagSafe adapter has stopped working

Yesterday I noticed that my 85W MagSafe adapter had stopped working. I usually leave it plugged in constantly to my MacBook Pro (but not constantly on at the switch). The LED on the plug that ...
0
votes
1answer
118 views

How to prevent MacBook Pro from sleeping with turned off external display?

I have two displays connected to my MacBook Pro Retina 2015, running 10.10. It is connected to power, so it will not sleep once I close the lid. However, if I am doing long during calculations over ...
1
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1answer
157 views

Taking care of your Mac (put into a sleep or shutting down)

I have read this article but I would also like to know what are your thoughts and opinions on that point. I have my MPB with 16GB RAM and SSD drive. I would like to put my Mac into sleep rather than ...
0
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1answer
65 views

Is something on the IO logic board burnt or..?

yesterday, i plugged my macbook pro to charge, and my magsafe charger got a little burn where it connects to the magsafe charger (wall->magsafe). Now my macbook pro won't charge, no light, no nothing, ...
2
votes
1answer
66 views

Why do I feel 'electricity' when bridging my macbook and a double insulated charger?

Let me set the scene: Macbook with metal case plugged into the wall with 3 pronged plug iPhone is plugged into an iPad charger with 2 prongs When I touch both my iPhone and the case of my macbook ...
0
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0answers
134 views

Apple cinema display magsafe doesn't charge my MacBookPro

After last Yosemite update (10.10.5) I've seen something strange. I usually connect my macPro to my Apple thunderbolt display and the battery is charging correctly. I noticed a couple of time this: ...
0
votes
1answer
651 views

iPad won't turn on after being drained [duplicate]

What if my iPad didn't turn on after battery drain? I did all the steps but it still didn't work. Is it already damaged or can I recover it on an Apple Store?
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votes
1answer
37 views

MacBook Pro 13' Power cord

I use a 6 outlet adapter on my wall outlet. Since it's on the wall, it gets loose sometimes. This morning I pushed it in, while my power cord was plugged into it and the the power cord was plugged ...
1
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0answers
90 views

MagSafe 2 frequently broken

I've got a MacBook Pro (Retina, Mid 2012), once in a longer period of time my MagSafe 2 adapter simply fries. Just a minute ago I fried the third MagSafe 2 adapter in three years time. It occurs with ...
0
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0answers
167 views

How to avoid external display going off after I unplug a MacBook from the AC Power?

When I have my MacBook Pro 10.10 connected to the AC Power my external display connected through HDMI works fine. As soon I disconnect the MacBook from the AC Power and start running on battery, my ...
0
votes
1answer
96 views

MBP 15" early 2011 shuts down after login without power cord

Update #1: I uninstalled gfxcardstatus. Now the only times it shuts down instantly are when I initially log in (tried on user with Filevault and one without), and when I log out from one user ...
0
votes
0answers
26 views

Problem loading iPhone on voltage converter (12 V <-> 230 V)

A few days ago I had a very strange problem. First, the iPhone 4S was attached to a car radio and it was loading an hour long, but the battery charge level only increased by one percent! It was hot ...
0
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1answer
44 views

Is there any danger/risk in leaving my iMac G5 turned off and disconnected for long periods of time?

As the title states, is there any danger in leaving my iMac G5 (Later 2005 model) turned off and disconnected from a power outlet for long periods of time? I will be traveling for roughly 1 month and,...
0
votes
0answers
156 views

can I splice power for a iPhone 5s into a lightning cable?

Algebra! yay! DJ + iPhone 5S + DJ Controller with 30-Pin (hardwired) + Apple 30-Pin to Lightning Adaper = A bumpin' party minus enough power to keep the controller running and connected to the phone ...
0
votes
0answers
277 views

MagSafe light turns out orange after few seconds

Is it normal for MagSafe to have orange light (not directly to be green light) 3-4 seconds after plugged to outlet ? I'm a bit nervous with this matter as I've just bought a new mbp after my ...
0
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2answers
5k views

Power reserve mode - lightning bolt

I cant get the watch out of power mode. It has a lightning bolt on the screen. What does this mean?
0
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0answers
80 views

Mac Air battery replaced, recognized, but not charging

So I attempted to replace my Mac Air battery myself. Swapped it out just fine, screwed things all back in place. Problems: It's recognizing the battery in the System Preferences>Power display, but ...
2
votes
0answers
110 views

Turn off keyboard lights after typing

I have my computer (MBP 2015) to turn the backlight on my keyboard off after I haven't used my computer for 10 seconds. Is there a way how to disable the keyboard backlight after x amount of seconds ...
1
vote
3answers
267 views

Strange Macbook 13 Retina MagSafe port problem

My Macbook Pro 13 Retina only charges (charger lights up and charges) if FIRST I plug the charger to the macbook THEN I join the metal part of the charger cable (see pictures). If I do it the other ...
0
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2answers
2k views

After using fake charger with my Macbook Pro Retina 13, an original new one won't light up

I bought by mistake a fake MagSafe 2 charger for my Macbook Pro 13 Retina. After using it for around a month I decided to pay more and buy the original one for the sake of my battery health. After ...
2
votes
4answers
11k views

Is it possible to charge my MacBook Air from a powerbank?

I recently bought a powerbank that has two USB outlets. It's great for charging my phone and iPad. Is it possible to charge my MacBook Air from the powerbank? If it's not possible to do this "out of ...