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

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14
votes
3answers
4k views

Is a refurbished Macbook Pro's battery new?

When you buy a refurbished Macbook direct from Apple, is the battery in it new? I cannot seem to find a definitive answer on their website or on the internet. I am concerned that the savings from ...
5
votes
1answer
1k views

Is there a way to get the OSX battery icon to display both percentage and time?

I am working on a 2006 MacBook with Snow Leopard. The battery level indicator has the option to show Time or Percentage remaining. I would like to show both. Is there a way to enable this? or Can ...
3
votes
2answers
12k views

How do i get the low battery warning back on my MacBook?

I have a MacBook and I did not take care of the battery properly. It started to shut down unexpectedly at around 20% and then even at 30%. I got a new battery and it seems to work fine; it lets me get ...
1
vote
1answer
1k views

iPhone 3GS switches off randomly after update to 5.0.1

I bought a used iPhone 3GS and the owner claims it worked fine with iOS 4.3.5. When I came home, I reset all content and settings on iPhone. Did I know that doing the reset would force me to upgrade ...
1
vote
0answers
661 views

“2008 Mac Book Pro 15” Fan max speed, Battery not recognized , SMC reset makes it worse

I have a "15" Mac Book Pro 5,1 and after running it stone dead on battery once it wouldn't power on without holding down the power button, with battery and AC removed and then plug AC back in while ...
1
vote
1answer
821 views

CMOS Battery in MacBook Pro 2007

CMOS battery in my MacBook Pro (2007, pre-unibody) has died recently. I am looking for a replacement, although all I could find so far was only used batteries off ebay. It says following on the ...
0
votes
2answers
482 views

Does removing the battery while connected to power extend battery life?

On regular Windows notebooks people generally remove their battery packs when connected to a power source, in order to extend battery life. Does a similar approach work on the Mac?
7
votes
3answers
2k views

Does the MacBook Air draw power from the battery or wall socket when the battery is at 100% and plugged in?

I have a MacBook Air 13" (late 2010 model). I use it both as a portable computer (i.e. not plugged in, drawing power from the battery) and as a desktop (i.e. plugged into the wall socket) regularly. ...
2
votes
3answers
468 views

How long does it take for Apple's AA battery charger to recharge?

I'm talking about the charger that comes with their new Bluetooth trackpad and keyboard. If I put 2 empty batteries in it now, how long till they're full?
6
votes
3answers
7k views

Which uses more battery when tethering - Wifi or BT on iPhone 4S?

I'm not really bothered which is quicker - I'm guessing this is wifi anyway. I just want to know which would allow me to get the most life out of my iPhone 4S when tethering to it with may MBP. ...
0
votes
3answers
761 views

Bad battery life on iPhone 3GS used as iPod Touch

My spouse got an iPhone 4 recently and we want to use the old iPhone 3GS as an iPod for the daughter. They switched him over at the AT&T store so I don't know if the old phone has a SIM card in ...
5
votes
3answers
334 views

Should I expect battery life on an iPhone 4S to be significantly worse than on a 3GS?

I just upgraded from a 3GS to a 4s and my battery life is dramatically worse. I wasn't expecting it to be the same (though I was hoping that it might even be better), but I'm seeing a big difference. ...
3
votes
3answers
5k views

iPhone battery life is awful even after replacing it

I have an iPhone 3gs 32gb. As they do, my battery was noticeably depleting as well as conflicted with the device having been slightly water damaged (dropped in quickly but immediately turned off and ...
1
vote
4answers
1k views

iOS 5 Upgrade: Massive Battery Drain and Crashing Phone App

I upgraded to iOS 5 a few days ago. Although the installtion was a bit bumpy, everything completed successfully. However, since the upgrade, the following symptoms have occurred: Phone battery life ...
2
votes
1answer
565 views

Short battery life on a brand new iPhone

Well I got my iPhone 4 about a week ago. When I got it I did several full charging cycles, 3-5 if I remember correctly. And these days an iPhone battery really seemed "unkillable". It was really hard ...
1
vote
1answer
705 views

How to store unused Macbook battery for long period of time?

I'm going on a long backpacking trip and going to leave my Macbook at home unused. How should I store its battery to maximize the battery life?
26
votes
14answers
27k views

Why is iOS 5 draining my battery so fast?

My wife's phone went from lasting a full day to needing a recharge every few hours after upgrading to iOS 5. Mine still works fine after the upgrade. What might be causing this?
0
votes
1answer
2k views

Apple iPhone 3GS Battery Problem

So my iPhone is charged at 100% overnight, and when the battery gets to like 90%, the phone suddenly shuts off when I open an app like Facebook, Foursquare, Maps, etc... I try turning it back on and ...
0
votes
2answers
222 views

How to improve the iPhone battery?

Hi all I was looking for a solution to prolong my battery life potential. Is there a replacement battery for iPhone that is more powerful than the one in-built when we bought it? Or is there an ...
1
vote
2answers
344 views

Battery life not like advertised on new MacBook Pro

I bought a MacBook Pro 15.4" in September and the battery life is nothing like what is advertised. I'm struggling to get 4 hours out of it with wifi off and Ethernet as my network connection. The spec ...
3
votes
3answers
1k views

Hibernate MacBook on 10-ish % power instead of 0/1% when running on battery?

Yeah, I know my battery is probably hosed, but every time I reach 5%, my MacBook shuts down, as it expects the battery to be able to run down to 1% before hibernating. However I would like it to ...
4
votes
1answer
937 views

How can I maximise the life of my iPad battery? [duplicate]

Possible Duplicate: What is the best way to recharge an iPod Touch battery? Since the iPad battery cannot be replaced, how can I make sure that it lasts as long as possible, preferably ...
-2
votes
2answers
2k views

Prevent iPhone from charging while connected to MacBook

I want to know if is there a way to prevent my iPhone battery from charging, when I connect it to my MacBook. I want to try my applications when I'm working, but I'm afraid that I will damage the ...
4
votes
2answers
9k views

First steps after acquiring a new MacBook Pro (w.r.t ensuring optimal battery life)?

I just unboxed a new MBP 13.3 inch i5. I wanted to know what is the best way to start using it, so as to ensure optimal battery life i.e. Should I charge it to full capacity, before even booting it ...
4
votes
2answers
4k views

Battery indicator is not moving further from 96%

I bought a new macbook pro, till the day I bought the battery indicator is not moving further from 96%. I wonder if there is a problem with the battery because if I unplug my power cable it is still ...
3
votes
3answers
2k views

Why my MacBook Pro 15" (2011) power adapter turns orange?

I bought an early-2011 MacBook Pro 15" (highest-spec model) in June. It's running Lion. I have a problem which happens occasionally. My power adapter (while plugged in) from time to time ...
0
votes
3answers
800 views

Can an iPod battery be replaced? [closed]

I have never seen the iPod. When the battery dies on an iPod, do you replace the battery, or do you have to buy a new iPod?
0
votes
4answers
2k views

13" Macbook Pro running Lion loses battery fast?

I bought my 13" MacBook Pro last March 27, 2011. It's 5 months old now. coconutBattery shows that I've lost 12% of the original battery capacity in just 5 months with 238 load cycles. I read in some ...
1
vote
1answer
159 views

“Battery is not charging”?

When I connect the charger cable to my Macbook pro, sometimes the battery is not charged and I can read near the clock: "Battery is not charging". If I unplug and reconnect the cable, it usually ...
0
votes
1answer
52 views

doubt regarding calibration

I have white MacBook (early 2009), with Snow Leopard running. I read this following article about calibration: http://docs.info.apple.com/article.html?path=Mac/10.6/en/9036.html I have doubt in step ...
2
votes
2answers
373 views

I am only seeing 1:50 of estimated run time on a new MacBook Pro battery. Problems?

I have bought brand new MacBook pro 15-inch model with highest specifications in this June. I have also installed newest Mac OS, Lion. However, how it could be strange, when cable is not plugged it, ...
0
votes
2answers
2k views

How can I see which processes are draining my macbook battery by percentage?

Android devices have a screen that shows you approximately what applications and processes are using your battery, by percentage. I'm wondering, in theory, can this be done on a MacBook? How do you ...
3
votes
4answers
19k views

Why does my MBP say “Not charging” when plugged in?

I have the latest 2011 Macbook Pro. Sometimes I notice that even when I'm plugged in, the battery status says "Not charging" even when I unplug it and the battery is at 35%. Why isn't my MBP charging? ...
3
votes
5answers
656 views

Battery life on a core i7 Macbook Air

I recently purchased one of the new core i7 Macbook Airs and in most respects its amazing. The one problem is that the battery life is far less than the "up to 7 hours" Apple claims. In moderate ...
4
votes
1answer
2k views

Magic Mouse battery level broken in Lion?

After upgrading to Lion my Magic Mouse's level indicator seems to be broken. For the whole week it was reporting solid 100% on a pair of used batteries that were about 65% before upgrading. I swapped ...
0
votes
1answer
348 views

Should I be concerned about graphics switching for battery life?

I have a 15-inch MBP, Mid-2010, 2.66GHz i7, with Intel integrated graphics and a discrete NVIDIA GeForce GT 330M. Since I installed Lion, it seems my battery life has gone down to just 2 or 3 hours. ...
8
votes
3answers
831 views

Battery life decreased after upgraded to Lion

Has anyone noticed any battery life decrease after upgrading to Lion? I'm on MacBook Pro (mid-2010). Before, on Snow Leopard, when unplugged I had minimum 5hrs of life. Now, it's not much above 4hrs ...
1
vote
4answers
1k views

After hard drive upgrade, battery not charging?

I just installed a new hard drive into my Macbook Pro 1,1. I had a little difficulty when I initially installed it because the monitor was not turning back on. After re-opening the MacBook Pro (with ...
3
votes
3answers
3k views

Does the 2011 13" MacBook Air have a longer battery life than the old one?

My understanding is that the new MacBook Air 2011 is using a new Intel CPU that uses less power. I expected that should mean either longer battery life or a lighter computer, but I can't remember how ...
2
votes
1answer
460 views

Can I safely use my Macbook battery on another MacBook?

A friend needs a battery for his MacBook and I do not use my own MacBook battery, having changed to another laptop. My battery is fairly recent. Is it safe to use my MacBook battery on his laptop? I ...
40
votes
7answers
17k views

What are the best practices for battery longevity?

How do you maximize the cycle count of your battery? There seems to be a debate between: Leave plugged in 24/7 but do a full cycle once a month Charge to ~100%, drain to ~10%, repeat. NOTE: ...
1
vote
1answer
209 views

How to check if internal HDD spindle is off after unmount

I use SSD instead of optical drive in my Macbook MC516LL, so I have bunch of reasons why I wants to keep HDD's spindle off: Preserve HDD from shock Reduce energy consuming Reduce overall system ...
4
votes
2answers
3k views

Macbook Battery Cycle Count (Unibody White 2010)

I have a macbook white unibody 2010 (A1342) that is now 17 months old. I'm wondering if my battery is still good? The battery's information is below. Design Capacity: 5200mAh Current Capacity: ...
2
votes
1answer
1k views

Does the new macbook air has 1000 battery cycle limit?

I know that since 2009 Apple has been advertising the 1000 battery cycles that'll last for around 5 years under normal use for Macbooks and Macbook Pros. I don't see them advertising it in the new ...
3
votes
3answers
306 views

MacBook Pro resale value — should I replace the battery?

Non-technical question here, sort of. I'm planning on selling my old MacBook Pro on Craigslist. It's in great physical condition, with the exception of the battery, which is nonfunctional. It's never ...
1
vote
1answer
3k views

Using the Apple Battery Charger with non-Apple batteries

The Apple Battery Charger's product description page states: The Apple Battery Charger can recharge one or two batteries at a time. It's optimized for Apple-supplied batteries and it works with AA ...
2
votes
2answers
577 views

iPad 2 battery is not draining completely

Over the last couple of days, I found that my iPad - whilst functioning as expected in all ways - is not able to discharge beyond 14%; it would simply turn off as if I had drained the battery down to ...
4
votes
6answers
6k views

Is it safe to turn the iPhone 4 off for over a week

I am going away on holiday for a week but don't want to take my phone with me because I'm afraid of running up a huge bill, is it safe to turn the phone off for this long? Or can it damage the ...
11
votes
3answers
11k views

Charging an iPhone, difference between USB port and power outlet

The power outlet has more power obviously, but maybe the computer USB is suffice to charge it at maximum speed. Is there a difference between charging an iPhone using the computer USB port and using ...
2
votes
1answer
159 views

A good iPhone 4 Battery Extender

I am heavy user of an Iphone4 and often get to the red line. I bought a Battery Extender (cant remember the name of the company) a few month back but it stop working suddenly after a month. what to ...