The electricity drained by a device

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4
votes
5answers
934 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
442 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
88 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?
0
votes
2answers
466 views

Where are the power-on jumpers on a mid-2013 MacBook Air logic board?

I'm trying to locate the power-on jumpers on the logic board of mid-2013, 13" MacBook Air. Similar to this question, but for the newer model MacBook Air. I have disassembled and cleaned all ...
0
votes
2answers
968 views

Stop MacBook Pro from disconnecting network while downloading larger files

I am using a Gigabit Ethernet adapter (Apple) to connect to my network. While downloading larger files the MacBook Pro blanks the screen and disconnects the network even though it is active doing the ...
2
votes
1answer
81 views

Prevent iPhone from charging when plugged into a battery powered MacBook Air

I would like to prevent my iPhone draining power from my MacBook Air while the laptop is not plugged in and relying on battery power. How would I do this? Note, there doesn't seem to be any "unpowered ...
1
vote
1answer
23 views

Customize external HDD spindown timeout?

It's possible to enable spinning down of mechanical hard drives using the "Put hard disks to sleep when possible" option in Energy Saver, and it's possible to customize the timeout period with sudo ...
1
vote
1answer
36 views

Turn on MacBook with eject key or via USB

I had a problem with my MacBook Pro keyboard (mid 2010), and the power button stops working. Now, to turn on my MacBook I have to short the power pads. In the new MacBooks with no optical drive, the ...
1
vote
1answer
70 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 ...
1
vote
1answer
567 views

Why do I have to reboot my iMac and Wacom Cintiq after sleep?

I have an iMac and a 24 inch Wacom Cintiq. When I put the iMac to sleep, it freezes and I have to restart both the iMac and the Wacom Cintiq. How can I get around this?
0
votes
1answer
34 views

Mouse Power Issue

When I plug in a third party mouse into my iMac it does not get any power. I've tried the USB port on the keyboards and directly on the machine. I've tried two mice and one of them used to work (I ...
0
votes
1answer
135 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 ...
0
votes
1answer
104 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
votes
1answer
21 views

Macbook battery problem

I have a MacBook 13" (A1181) running Mac OS X 10.6.8, I have a problem with the battery When its turned off it responds to power button only when charger plugged in. After starting i can remove the ...
2
votes
0answers
45 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 ...
2
votes
0answers
70 views

Find out what adaptor power socket an unopened iPhone 5s has

I have an unboxed iPhone5s here, which I have received as a gift from a friend who also received it as a gift and did not want it. I might end up regifting it myself, so I would rather not open it. ...
2
votes
0answers
251 views

reverse magsafe adapter? (magsafe2 power to magsafe1 laptop)

I have some magsafe2 power cords. That's fine, but occasionally I need to loan power to an older laptop that has the magsafe1 port. I carry a magsafe2 adapter so I can steal power from them. But is ...
1
vote
0answers
367 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. ...
1
vote
0answers
115 views

Can an iPad be charged while acting as a USB host?

I have an iPad that I would like to leave semi-permanently connected to a USB hub (connected to a couple of MIDI controllers and some USB speakers). As it stands, I have to remember to unplug it ...
1
vote
0answers
2k views

iPad 4 not charging solution with usb 3.0 dual ports Y adapter

Just recently picked up an iPad 4. Saw that it specifies "not charging" when plugged into the usb port. Saw that it is a common issue due to usb power. I have usb 3.0 ports on my desktop so I tried ...
1
vote
0answers
449 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 ...
1
vote
0answers
165 views

How to identify the 3 thermals sensor connectors from the mac mini motherboard?

I opened my mac mini to switch the DVD with another hard drive and I forgot to take a picture with the ways the 3 thermal sensors are connected. THeir codes on the mainboard look like: J5550 - left ...
1
vote
0answers
269 views

Pop-up notification (or notification center notification) for battery in OS X Mountain Lion

I don't have the battery/AC icon turned on because, for the most part, there's no reason for it to be there - I typically get cord-free 5 or so hours at a time, so it seems redundant. Still, ...
0
votes
0answers
13 views

How can I check if USB to Lightning Cable is legitimate and is giving the proper power?

I know that Apple shows that "The outlet is not certified", for devices that don't supply the required power (they supply more or less) or if the ports are not compatible/correct (i got that when I ...
0
votes
0answers
47 views

Macbook power adapter issue: PPP003

I'm using Macbook Pro 15" Retina Late 2013. OS is Yosemite Public beta. Once in month I usually do diagnostics (Apple's boot time diagnostics, the when you press "D" ). The last the when I did it, I ...
0
votes
0answers
37 views

iMac shutting down when trying to install downloaded updates from Apple

My iMac keeps shutting down when I try to install the downloaded updates. It gets to "optimizing" level and shuts down.
0
votes
0answers
79 views

Battery indicator is stuck on one number

I have an iPhone 4s and the battery indicator is stuck on one number no matter how long I charge it. If I turn the phone off and then try to put it it on again it won't happen it will say the phone ...
0
votes
0answers
37 views

How to properly setup sleep mode?

Recently upgraded to Mavericks and faced one problem: my mac book pro mid 11 goes to sleep after some time... I set that monitor would go off after a minute and hdd never, that if i leave my pc at ...
0
votes
0answers
32 views

Any Apple device that uses UC-E6 plug?

I have an in-car charger left after sold GPS localizer. According to Wikipedia, it uses "UC-E6 proprietary (non-USB) plug" (second to the left on this photo). I would like to know, if anyone heard ...
0
votes
0answers
66 views

Macbook camera frequently disconnects (USB power issue?)

I have a Macbook Air (mid 2012) and quite often I go to use the camera, and the computer can't detect a camera connected. This is strange, because there is a camera built into the machine itself. ...
0
votes
0answers
600 views

Plugged faulty USB into Mac Air, won't turn on

I have an external DVD drive with an AC power input. I plugged it into a power source and then into my Mac Air (the generation released a year ago). The computer shut down immediately. When I ...
0
votes
0answers
263 views

Macbook randomly shuts down without on charge (even at ~90% full)

I'm having a real issue with my Macbook (white, late 2009 version, running Lion OS X). It was about since 2 weeks ago or so, my Macbook would just randomly shut down, I lost a couple unsaved files ...
0
votes
0answers
491 views

Quickly dim the iPod Touch by hitting the power button twice on the lock screen?

I've always wondered if this was a feature or not. When I'm on my iPod Touch's lock screen, then I hit the power button twice, the first hit will sleep the device, the second will wake it again but ...
0
votes
0answers
358 views

How to put MacBook Pro to sleep when the lid is closed and you remove the power?

I think I have a common use case that is not properly handle by Lion. If I close the lid and remove the power supply, my macbook is not going to sleep mode and stays awake draining the battery. It's ...
0
votes
0answers
519 views

PowerBook G4 PMU Reset Required

I have to do a PMU reset to turn on my G4 PowerBook (1.25 GHz). This occurs on every shutdown of the system. What are potential causes of this? I'm perfectly happy to troubleshoot, but on Google ...