The electricity drained by a device

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2
votes
5answers
142 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 ...
0
votes
3answers
91 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 ...
2
votes
2answers
203 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 ...
1
vote
2answers
564 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 ...
0
votes
2answers
41 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
230 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 ...
1
vote
1answer
241 views

know how many watts a USB device is consuming

I know it's possible to do some electric hack to know how much current a device is using... but that would be a 1 time usage so it would be a waste of money and parts. Is it possible to know that ...
1
vote
1answer
527 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
26 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
119 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
77 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?
2
votes
0answers
32 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. ...
1
vote
0answers
360 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
99 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
202 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
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
379 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
133 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
252 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
25 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
34 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
64 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
0answers
20 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
58 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
71 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
0answers
448 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
80 views

How do I get data off a iPhone 3GS which just shows a black screen?

iPhone was working fine then few hours later had "black screen". Cannot power-on now. On advice of Apple Store, I reset the device (held sleep/wake button and the home button for 10 seconds) and ...
0
votes
0answers
247 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
446 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
352 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
467 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 ...