Concerning devices that store electrical power which can be used to run various devices in the absence of external power.

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8
votes
3answers
6k views

What are real life iPhone 5 battery run-time expectancies?

I got my iPhone 5 this week. While browsing with Safari, on WiFi (which I am using to post this question), my battery life drops at a steady rate of 1% per 5 minutes. I have been timing it from 64% ...
0
votes
1answer
531 views

iPhone battery life: Siri or iOS 6?

I updated my iPhone 4S to iOS 6. I suddenly activated Siri (because finally it comes in my language) and in this days I noticed that my iPhone battery life is less than previously. This problem is ...
2
votes
1answer
4k views

How much does it cost to service a MacBook Pro battery?

I have a mid 2009 MacBook Pro and I just got a message saying that I should service my battery. I tried to reset SMC and NVRAM but the problem persists and I fear I'll have my battery replaced. How ...
3
votes
1answer
198 views

Why hasn't my battery life improved even though I changed the battery?

I have a mid-2009 white MacBook. About a week ago, I switched the aging and failing battery for an identical new battery I got off eBay (supposedly original part and new - looked legit both in ...
0
votes
1answer
189 views

Fixing MBP battery which has been sitting

I have a new battery that has only 3 or 4 cycles on it, that I got as a replacement a year ago. The battery and the machine it's in, a late 2008 MBP, has been sitting for the last year unused. I tried ...
2
votes
1answer
319 views

How can I disable CPU throttling on Late 2006 MacBook with no battery?

The problem I am experiencing is that if the battery is not present, the CPU is automatically throttled. I have done some searching and have found that this is apparently by design, "in case the ...
2
votes
1answer
307 views

Should the MacBook Air have the same amount of charge as its stated capacity when 'Full Charged'?

The following is an extract from System Information (under power): Charge Information: Charge Remaining (mAh): 6517 Fully Charged: Yes Charging: No Full Charge Capacity (mAh): 6690 ...
1
vote
1answer
243 views

Would a 2.6 Ghz CPU drain a laptop's battery faster than a 2.3 Ghz CPU?

Apple offers the MacBook Pro with two processor options -- 2.3 Ghz and 2.6 Ghz. I'm wondering if the more powerful CPU drain the battery more quickly by any significant degree. (And incidentally, ...
1
vote
2answers
2k views

When streaming movies online, should I keep the computer on the charger?

I watch a lot of movies streaming online. Should I keep my computer on the power cord, or should I charge the unit completely, remove the power cord, then wait till it gets to a low battery and plug ...
1
vote
2answers
3k views

How can I triage a MacBook Pro that won't charge with the LED dimly lit green?

I have an early-2011 MacBook Pro that will not charge. The green light on the MagSafe connector is barely green. Besides the fact that the system info tells me the battery is not charging, the ...
0
votes
1answer
72 views

Charging behavior of iOS devices

Does the speed at which the battery of an iOS device charges vary depending upon whether it is being used or not? For example, when I am charging an iPhone in my car, will it charge faster when not in ...
1
vote
1answer
2k views

Can a MacBook Air battery be replaced?

I have a MacBook Air which is an awesome computer, however I am curious what my options will be when the battery finally kicks the bucket. Can it be replaced?
9
votes
4answers
33k views

How to maximize Macbook pro retina's battery life when working with AC power?

I'm working 95% of my time with AC power and Thunderbolt Display. Since macbook pro retina's battery are no longer easily switchable I'm concerned about it's life and would like to maximize it. Before ...
4
votes
1answer
482 views

MacBook Retina strange system/battery behaviour

I am quite used to the fact, that MacOS X does a lot abracadabra internally to provide the best user experience ever, but I also used to understand all that happens. With my pristine MBPr (3 battery ...
2
votes
3answers
316 views

Will using my iPad as an external monitor negatively affect it's lifespan?

I'm using AirDisplay to allow me to use my iPad as an external monitor for about 10 hours a day. I have it plugged into my Mac the entire time (so the battery doesn't completely die). Will this ...
3
votes
2answers
17k views

Battery warning “Service Battery” goes away by itself

I got the "service battery" message when clicking on the power indicator of my MBP the other day, only my battery appears to be fine. Then today, it's gone away by itself, I haven't taken it in for a ...
1
vote
1answer
201 views

How to check how much battery each application uses?

How would one check how much battery an application uses from a full charge of 100%? Are there any applications out there or is this impossible?
49
votes
7answers
27k views

I am missing the option to see the remaining battery life as time in the menubar?

In previous versions of OS X the battery indicator in the menubar included options to show the remaining battery life as percentage or time (or nothing). In Mountain Lion, there's only an option to ...
0
votes
1answer
242 views

Using iPhone's GPS in remote areas

I plan to go hiking in an area where I do not anticipate there being much cell coverage at all. What there is will likely be very spotty. I would like to use the All Trails app to track my progress ...
2
votes
2answers
7k views

Is it possible to buy a genuine iPhone battery online? [closed]

I searched for an iPhone 3GS replacement battery on Amazon and while many items claim to be original/genuine, a lot of reviewers still complain that they are not/not as described/do not work well. Is ...
5
votes
3answers
5k views

Charge from USB on computer or wall socket?

Is it OK if I keep charging my iPad and iPhone using the Mac USB ports? Or is it better to charge them with the supplied chargers? I understand that charging slowly is better (though I'm not sure ...
3
votes
0answers
1k views

Macbook Pro Sleep Battery Drain

I have an Early 2011 Macbook Pro (13", basic spec) which since I got it (I only just stopped to think about it) has had a massive amount of sleep battery drain. When the laptop is on and in-use, its ...
3
votes
2answers
2k views

Battery cycles for rMBP and recharges?

So I got my first Apple laptop, a Retina MacBook Pro. I heard that its best to let the laptop discharge until 0% in order to restart the battery cycle or something like that. However I know that ...
2
votes
2answers
575 views

Disable Spotlight indexing, save battery life

I am using my laptop with very limited battery availability. I need to save as much battery as possible. I would like to disable Spotlight indexing, how do I do that? What else should I disable, ...
2
votes
0answers
160 views

Strange sleep mode of MacBook behaviour after water damage

Months ago I drowned my MacBooks keyboard in water and it died. I'm using an external keyboard now the Mac works as before. However, there is this interesting feature that if I just close the Mac ...
3
votes
1answer
3k views

MacBook Pro Battery Life Problems - only 2 hours with light usage

At some point in the past 2 weeks, my MacBook Pro (13", early 2011) began running hot and getting poor battery life. The battery life used to last 4-5 hours even when I was using it regularly. Now, ...
2
votes
3answers
2k views

MacBook Pro battery drains quickly, shows Service Battery when restarted

The new battery is an A1175 on a MacBook Pro (2008). The specs are that this battery should hold a capacity of 5600 mAh. OSX Lion System Information reports: Full Charge Capacity: 4936 mAh ...
4
votes
2answers
4k views

Which Personal Hotspot mode uses least battery?

Both iPad and iPhone's Personal Hotspot mode allows 3 ways to connect: WiFi USB cable Bluetooth I want to use Personal Hotspot on my MacBook Pro, this means that I can use either of the three. ...
2
votes
1answer
315 views

2007 battery replacement for 15" pro. 85w now 60w? Help!

I'm looking at a replacement battery A1175 for my 2007 15" pro (specs here: http://support.apple.com/kb/SP17), which is listed as 60w. My original battery charger was 85w. Is this going to work?
2
votes
1answer
9k views

Why is iPhone battery percentage fluctuating at lower levels?

My iPhone 4 (going on 19 months of love) has recently started having a bit of an issue knowing the percentage of its battery it has remaining. I will be using it and it will jump from 31% to 19% and ...
4
votes
1answer
597 views

Is there any study on how which services/sensors consume the battery?

I am looking for some study/comparison on how battery-consuming are specific services/sensors (3G, Wifi, GPS, Bluetooth, accelerometer) in the iOS devices. Has anyone stumbled across something like ...
2
votes
3answers
2k views

Can someone read messages on my locked iPhone?

I left my iPhone in a taxi cab. I locked the phone to make sure nobody finds it and makes expensive calls. But does locking the phone prevent someone from seeing the texts I am sending? What if the ...
3
votes
1answer
2k views

Does activating Find My Phone deplete the battery on an iOS device being tracked?

My phone is currently riding around New York City under the seat of a taxi cab. I'm watching its progress with the Find iPhone app. My concern is the phone may soon die and a rider or driver will ...
1
vote
1answer
821 views

4th gen shuffle battery, no lights or charge

My 4th gen ipod has not been used for some time, I have a new usb to jack cable for charging it. The shuffle shows no signs of life, no lights, when I plug it into the wall or computer(different ...
0
votes
4answers
360 views

My iPod Touch 2nd generation is dead

My iPod touch does not respond since yesterday. I cannot see anything on the screen and the buttons don't do anything, no backlighting either. The problem started when I wanted to plug my iPod into ...
2
votes
2answers
410 views

MacBook Pro: OS battery indicator doesn't match hardware battery indicator

I recently upgraded my MBP to Lion, and now the battery indicator in the menubar at the top of the screen constantly shows "(Charged)", even when the indicator on the side shows almost empty. Any ...
1
vote
1answer
388 views

How to get the iPod Nano 5th gen battery health

Is there any way I can get the battery health of an iPod, specifically a 5th gen Nano? I've done a little bit of googling and I don't think there is a way, but I though I could give it a try here. I ...
2
votes
3answers
5k views

Does plugging in an iPhone/iPad make a difference to its battery lifespan?

I've been led to believe there's a difference between how a MacBook and an iPhone/iPad consume power: when a MacBook with a fully charged battery is plugged in, its components draw power directly from ...
1
vote
0answers
1k views

iPhone won't charge anymore in infinite boot-loop [closed]

NOTE: I know this is a lot of text to handle, but I'll add a bounty whenever I can to the person who can bring me the solution. So see is as a motivation to read the whole text :) My friend has the ...
1
vote
1answer
1k views

MacBook Pro battery not fully charged sometimes. Need tips

I'm using MacBook Pro and it will be in charge nearly 12 hours in a day. I set the battery indicator to Percentage, so it is displaying the battery charge in percentage. The problem I faced is, most ...
3
votes
1answer
843 views

Problem with applications not resuming where left off after low-battery sleep/hibernate on Lion

I am having problems with applications re-launching from scratch, rather than continuing where they left off, when resuming my Mac (alumimum MacBook, fall 2008) after its battery runs low. This ...
2
votes
3answers
1k views

Is putting the computer to sleep while it's in a hot car a bad idea?

I know that keeping the battery of a MacBook Air in a hot environment is a bad idea. But sometimes I have to leave it in a hot car. Are there any recommendations as to what to do in this kind of ...
6
votes
1answer
5k views

How can I preserve the battery cycles on my MacBook Air?

I recently got my MacBook Air, and the battery cycles is already at 12. Is this good/average? I don't know if I am not charging it properly or something, because I don't want to ruin my battery in the ...
6
votes
4answers
8k views

Does overcharging a MacBook degrade its life?

I have an early 2011 13" MacBook Pro and I use it almost like a desktop. I leave the power cord connected all the time. Is this OK? Am I ruining the computer or diminishing its lifespan?
2
votes
1answer
367 views

MacBook Pro battery and speed issues

My sister's MacBook Pro often shuts down at ~20% battery. It won't turn on again until it has been plugged in for about 10 minutes.
3
votes
2answers
41k views

iPhone turning off with plenty of battery remaining

Lately my iPhone 4 has been getting to 19% battery and then dropping straight to 1% and shutting off. Once I plug it back in and start it up it immediately shows up at 19%. Is this a battery or ...
2
votes
4answers
450 views

Is it true that iPhone 4S has battery issues?

I'm considering getting a new iPod and a new mobile phone. iPhone 4S sounds like a really attractive option, but it looks that iPhone 4S has serious battery issues. Some people are charging their ...
7
votes
2answers
12k views

How to figure out iOS device battery health?

I'm looking for ways, similar to coconutBattery for OS X to figure out current health of battery for iOS devices.
6
votes
1answer
709 views

How is the battery level calculated in the magic mouse?

I wonder how the battery level in the magic mouse is calculated. This question about battery problems raised another one, I would like to know how the electronics in the magic mouse work and evaluate ...
2
votes
3answers
565 views

How can I keep my MacBook Air's battery cool?

It seems that the best advice for battery longevity on my MacBook Air is to keep the battery cool. It doesn't have powerful fans like the MacBook Pro, so I would think that overheating is even more of ...