The electricity drained by a device

learn more… | top users | synonyms (2)

0
votes
1answer
26 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
votes
0answers
20 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
25 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
0answers
12 views

Device to measure power available from charging point [closed]

I know that anything that you plug a lightning cable into will charge an i-device at SOME rate. But that rate varies wildly, depending on the original source of the power (real apple mains converter, ...
1
vote
3answers
117 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
votes
2answers
56 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 ...
1
vote
2answers
55 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 ...
0
votes
1answer
24 views

Disable power button on 2015 MBP

Me and my friends like having a laugh together and as part of that we turn each other computers off and spam tabs till the computer crashes. Is thee a way how to disable the power button on my MBP ...
0
votes
0answers
16 views

MBP not charging despite SMC reset

Late 2008 Macbook pro4,1, "Battery not Charging", steady green led. Battery seems fine, and is after market but won't charge. It worked well a week ago before not being used over the long weekend. ...
1
vote
1answer
75 views

How to use external monitor with MacBook Air closed and on battery power?

I often use my MacBook Air (running OS X 10.9.5) closed at a docking station, where it's hooked to external monitor, keyboard/trackpad, and power. All good. The only issue is that occasionally the ...
1
vote
2answers
32 views

Thunderbolt dock statation power charging

There are two types of dock stations on the market: Docks use external MagSafe adapter to charge MBP. (MagSafe should be bought additional from Apple). Docks with only Thunderbolt connection to ...
3
votes
2answers
277 views

Can I use a Mac mini without the power brick?

I don't have the power brick for my Mac mini with me but I have cord that plugs into the back of it, can I use it without and plug directly into the wall? Any harm? The model is A1347
1
vote
1answer
93 views

How to disable “always on” USB power on Macbook Pro

I am operating my MacBook Pro early 2015 within a Henge dock (HD03VA13MBPR) , connected to two external displays and external speakers. Both displays and speakers get power from a power distributer ...
0
votes
1answer
18 views

Need Help With iPhone 4

I have an iPhone 4 that I shut off with the touch assist because my lock button is broken. How do I get my phone to turn back on?
1
vote
2answers
10k views

How do you get the Apple Watch out of Power Reserve mode?

I got it into power reserve but can't figure how to resume normal mode. I have tried tapping and pressing the screen and holding both side buttons.
0
votes
0answers
128 views

USB Devices Disabled when no devices are connected

using iMac 5K OS 10.10.3 When there are no USB devices connected to iMac, it keeps showing this. I tried SMC resetting, booting through Safe Mode, and nothing is working to make this alert go away. ...
1
vote
1answer
48 views

Show USB power use

I wanted to see how much power the Anker Astro external battery draws when charging from the MacBook Pro (Retina, 15-inch, Late 2013) (right hand port next to the SD slot), but when listing the USB ...
1
vote
1answer
39 views

Macbook Pro not charging

My 2009 Macbook pro is not charging. I recently bought a new power adapter and when I plug it in the computer starts up fine although the date is set back to Jan 1 2001. When I click on the battery ...
1
vote
2answers
22 views

Can I get power from my Belkin Express Dock HD (Thunderbolt 2) for my MacBook Pro Retina?

I plug my MacBook Pro to my Belkin Express Dock HD via Thunderbolt, but I see that my battery is getting down. I was hopping to get power from the Dock. Is there any solution to this problem?
1
vote
1answer
35 views

Can I use a Early 2011 MacBook Pro 13“ charger with my Late 2013 MacBook Pro 13” with the MagSafe Adapter?

I bought a Early 2011 MacBook Pro 13" but eventually upgraded to a newer Retina Late 2013 13" model. I'd like to get another charger, but I'm curious if I could use the old charger that came with ...
1
vote
2answers
39 views

Charge MacBook with USB (Adapters?)

I want to buy an external charger, it has USB. Are there any adapters (including transformators, I think that might be needed, right?) so I can charge my MacBook with the external charger?
0
votes
1answer
25 views

Will this MagSafe power adapter work on my MacBook Air?

My MBA's model number is A1369. I bought this power adapter: 85W magSafe 2 Power Adapter. Model number A1424. I know it's not the ideal power adapter, but will it work on my MacBook without a ...
0
votes
1answer
65 views

Power adapter green light blinking on - non genuine adapter

I recently acquired a new power adapter 85W for my macbook pro retina late 2013. I made sure the specifications matched the official Apple adapter and in fact I have not noticed any performance ...
0
votes
1answer
30 views

MacBook Pro does not power on sometimes

I have a MacBook Pro 15″ Late 2008 (5,1). Sometimes it just won't power on. It works fine. I shutdown, then when I go to turn no it just does nothing. Previously I removed the battery and the charger, ...
0
votes
1answer
65 views

Options for Replacing 60w Magsafe Power Supply

For the second time in four weeks I've had to re-solder the mag safe cord back on to the power supply. This time, unlike the first, the cord broke on the negative terminal on the circuit board itself. ...
0
votes
2answers
200 views

Using 45W Power Adapter with MacBook Pro Retina 15

I would like to know if I am able to use a 45W MagSafe Power Adapter in my MacBook Pro Retina 15 with a MagSafe to MagSafe 2 Adapter. I am normally using the original one (85W MagSafe 2 Power ...
0
votes
1answer
43 views

MacBook shows it is charging when MagSafe is green

My MacBook currently shows this even though the MagSafe charger has a green light. Does anyone know why this is? If it helps I am on a MacBook Air late 2010 with 819 cycle counts, 4,995mAh ...
2
votes
5answers
765 views

How to fix a Macbook Pro (late 2013 model) with liquid damage?

I bought a refurbished 13" Macbook Pro (late 2013 model retina) from the Apple store website in Sept 2014. It worked great till last month, when I had some water leak out in backpack and get through ...
1
vote
0answers
77 views

Mac Pro 2008 Refuses to Boot

My Mac Pro 3, 1 began rebooting randomly one day and the next it wouldn't come back on. Pushing the power button results in a fan clicking in to life for half a second and then all power is lost. The ...
0
votes
1answer
59 views

Why did my Mac reboot into the “Set up your new Mac” screen after a power failure?

I accidentally turned off the power strip that my iMac was plugged into while it was still running. When I turned it back on again, it put me at the "Set up your new Mac" screen, asking me to accept ...
1
vote
0answers
44 views

MBP Powering Down When Idle

My mid-2012 MacBookPro (Model 9,2) has developed an issue with power in the past few weeks. When it is left awake for several hours, but is idle, it powers off. When I turn it back on and log in, it ...
1
vote
1answer
256 views

Turn on MacBook Air without keyboard

How can I turn on my MacBook Air model A1370 mid 2011 without a keyboard? I need to find the power on pads for the Mac:
2
votes
1answer
379 views

Turn down TX power on AirPort?

Our floor has a blind spot so we needed to place an AirPort to cover two rooms. The AirPort in this particular room is transmitting at a higher power than needed, and its bleeding onto some areas ...
0
votes
0answers
16 views

iMac 27" to LG BT30N blu-ray drive cable?

What cable or cables do I need to connect my iMac i7 Retina to a BT30N external drive which has a 13 pin slim SATA female port?
1
vote
0answers
236 views

Only my cable can recharge my iPhone

My iPhone cable is the only one that can recharge my iPhone 5. I have tested around 5 other iPhone 5/6 cables and none of them work. I am apprehensive of either losing my cable or breaking it. The ...
0
votes
0answers
151 views

Logitech Type+ flashing blue; iPad Air 2 won't wake

When I leave my iPad Air 2 for some 5 minutes and return, my asleep iPad refuses to wake when I press the power button. I press the power button on my keyboard case (Logitech Type+) and the little ...
1
vote
3answers
900 views

Battery is not charging despite SMC reset

I have a problem with charging of my Battery which has been appeared last night. It was working perfectly well for a long time. All of my friends who had different laptops were so jealous at my ...
0
votes
1answer
175 views

MacBook Pro 13 doesn't fall asleep when the lid closed

I have a late 2012 MacBook Pro 13'. I've faced a strange problem: my Macbook does NOT switch into sleep mode when the lid closed. Same when open the lid - it does not wake. Instead of closing/opening ...
2
votes
1answer
51 views

Once I disconnect from the mains, can I leave the charger cable in the Mac?

I use my MacBook Pro on battery as much as possible, recharging when needed and once a month running it down to recalibrate etc. However, when the battery is charged to 100% I unplug the charger from ...
1
vote
1answer
112 views

Are Apple's AC Cords for MagSafe (1+2) always the same?

I am getting a customised MacBook Pro Retina and it will have a AC Cord for Britain, but I need one for EU/Germany. So can I easily switch the AC Cord of my MagSafe 2 to a German one? Are these Cords ...
0
votes
2answers
295 views

Is it better for the battery to leave the iPad plugged when charging is done?

I charge my iPad. Later, I notice that the battery is charged at 100 %. Now, what is better to preserve the battery capacity ? Unplugging the cable. Leaving the cable plugged. The answer may ...
1
vote
2answers
44 views

Will it hurt my Macbook Air to be plugged into a “Uni Pak II” which is a dimming power source?

I'm at a conference and the only plug is a "Uni Pak II" which is a dimming power source (here's the manual). At first my charging indicator on the end of the MBA plug didn't light, but I slid up the ...
0
votes
0answers
96 views

How to identify dead battery in Macbook pro 15" Mid 2010?

I have a Macbook Pro 15" Mid 2010 and I believe it has a dead battery. When I plug in the magsafe adapter it glows green, but the Macbook will not boot when I press the power button. When I press the ...
1
vote
1answer
56 views

Mac Air -first no sound, now it won't charge

First the sound went out on my macbook air. I was in the airport and tried everything I knew, nothing worked. Then I went to plug into an outlet I found, and realized it wasn't charging. It does ...
0
votes
2answers
544 views

Can I use an iPhone 4S USB power adapter with an iPhone 5S?

I have an iPhone 4S, and I am thinking about upgrading to an iPhone 5S. I know that the iPhone 5S has the new Lightning connector, so I will have to get new cables. But what about the USB power ...
3
votes
2answers
810 views

Uninterruptible Power Supply not shutting down Mac Mini running Yosemite

We just received a brand new Mac Mini, which came with Yosemite pre-installed. Our UPS is set to shut down the computer after running on battery backup for 1 minute. I have tested this with an iMac ...
0
votes
1answer
59 views

MacBook Pro (5,5) restarts when powering microcontrollers

My Macbook Pro (13-inch, mid 2009, Intel Core 2 Duo) has an odd problem with the USB ports. Occasionally, when plugging in, removing or restarting a microcontroller such as the Arudino or Teensy, the ...
0
votes
0answers
17 views

iPhone Accessories Power Usage…What is possible?

Im toying with the idea of creating an iPhone accessory that would require that it draw power from the phone itself. So would the latest Lightning connector allow any accessories to draw 4.5V? Also I ...
0
votes
0answers
59 views

What's a normal Voltage (mV) to expect for a MacBook Pro early 2011?

I have a 13-inch MacBook Pro, early 2011 MC700. What's a normal Voltage (mV) to expect in System Report → Hardware → Power? I can see that it goes up to 12153 when it's fully charged and it comes ...
0
votes
2answers
261 views

How to open Cinema Display power supply?

My Cinema Display bit the dust, and all the symptoms seem to point to the 150W power supply brick, which is apparently not an uncommon problem with those models. New power supply bricks are close to ...