Questions tagged [power]

The electricity drained by a device

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vote
6answers
7k views

Power adapter connection issues

Lately, my Magsafe power adapter has not been connecting properly: The wires are not worn out as I take good care of them The issue happens when I try to connect my power adapter to my computer The ...
0
votes
1answer
307 views

International Power Converter

I am going out of th country in a few weeks, and I am planning on taking my Macbook. I have a power adapter for the country I'm visiting, but it was bought for a PC. Will it work on a Mac?
0
votes
2answers
2k 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 ...
12
votes
5answers
55k views

Keep iPhone Screen On (when plugged in)

Is there an app (normal, jailbreak) that will keep my iPhone (3GS, OS 4.x) screen on, indefinitely, when it is plugged in, regardless of what app is running in the foreground?
6
votes
1answer
381 views

Mac display won't turn on

I have an Apple HD display that has been in our IT depart for a few months now. It was working fine until recently (the past month or two). I can turn it on and it will work for a few days, but then ...
3
votes
2answers
16k 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 ...
2
votes
1answer
638 views

iPod Touch 4th Gen dock with AC or USB power and audio out?

I have scoured the internet looking for a dock that will allow me to charge an iPod Touch 4th Gen which includes a jack to connect it to an external stereo system. I understand this can be ...
12
votes
2answers
6k 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
8k 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 ...
23
votes
4answers
22k views

Why does GPS on the iPhone use so much power?

I keep reading in articles that GPS on the iPhone, or any cell phone for that matter, uses a lot of power, but I've never heard an explanation of why. Why is this? The phone doesn't have to transmit ...
2
votes
4answers
237 views

New powercord for MacBook

I am considering going on eBay to try and buy a new powercord for my MacBook. I know that phones often advise that you only use the official charger, so I was wondering if the same warning applied for ...
2
votes
1answer
1k views

Battery or power adapter problem?

I have a problem charging my battery. When I plug my power adapter into my MacBook Pro, the power adapter's light turns green (it doesn't change to orange) and my monitor light turns on (which means ...
29
votes
5answers
62k views

Is it OK to charge my iPhone with my iPad charger?

I have an iPhone 4 and an iPad. Since the iPad really charges best off the wall charger I keep it plugged in, but I usually just charge the iPhone off the computer. Although frequently if the iPad ...
20
votes
7answers
29k views

iPad displays “Not Charging” when plugged into USB ports. What can I do?

When I plug my iPad into my computer's USB ports, the iPad battery area displays "Not Charging". I understand the iPad requires more wattage to charge compared to an iPhone or iPod, as evidenced by ...
17
votes
4answers
10k views

What's the point of the 60W Apple MagSafe replacement charger?

One of the cable tabs on my MagSafe charger for my MacBook came undone, so I took this as a sign to retire the charger to home use and to purchase another for travel. When I went to my local Best Buy, ...