How long a battery lasts between charges
6
votes
1answer
451 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
2answers
435 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 ...
6
votes
3answers
247 views
Does the real-world MacBook Pro battery life scale linearly with it's capacity?
I have a well-worn battery on my 2010 MacBook Pro. After 467 charge cycles, I get about 3 hours of the normal 6-7 hour range.
Using coconutBattery shows me that the charge capacity is 5783 mAh, ...
5
votes
3answers
428 views
Which model of Macintosh has the longest battery life?
I was exclusively a PC man (specifically Dell, Gateway, and HP), but I am now planning to buy a Mac, because my sister has a Mac, with a battery life (much) longer than mine, and I would like to ...
3
votes
2answers
933 views
How does the new iPad's Retina Display affect its battery life?
As we all know, the new iPad has a gorgeous new Retina Display. And yet, it's advertised to have battery life just as good as the iPad 2's.
How is this possible? Doesn't the new display require a lot ...
5
votes
4answers
4k views
How long does the battery last on mid-2011 MacBook Airs?
I know that one of the big innovations in the MacBook Air was in the battery (which gets most of the internal volume of the computer!)
What is a normal loss of battery life (change in usable time on ...
2
votes
4answers
356 views
What's the battery life of the new iPad 4G with LTE disabled/enabled?
I saw a video about the new iPad and it showed that you could disable LTE.
Apple had to increase the battery capacity in the new iPac because upgrades like LTE and the new display draw ...
2
votes
5answers
2k views
How much time do I have left on my iPhone 4s
I just checked and it says the battery on my iPhone 4s is 30% charged. If I leave my phone off, how much time will it have left? What if I turn it off?
I need to know if I'll be able to use this ...
0
votes
1answer
242 views
What is the best way to charge
I'm currently using Late 2008 MacBook (Aluminum). My battery cycle is currently 111 and has went for replacement of battery 6 months ago + warrenty is ending soon. Hence I want to let the battery last ...
0
votes
3answers
4k views
Poor battery performance after SSD install
I recently installed a Crucial SSD into my Macbook Pro (2.66 GHz Intel Core i7), and now the performance of my battery is probably about 50% of what it used to be.
I've tried to reset the PRAM, but ...
2
votes
3answers
3k views
Does a black screen save battery on an iPhone 4?
Where can I found information about the power consumption of an iPhone 4 display? Which technology is used? Does it save battery lifetime when the screen displays black or dark pixels?
Additionally, ...
1
vote
2answers
1k views
Faulty iPhone 4S battery - how can I test a battery to measure its integrity?
I bought an iPhone 4S two months ago. In the last couple of days I've perceived an average battery life of 12 to 18 hours with a light usage of the phone throughout the day.
I've followed every tip ...
2
votes
2answers
5k views
Anyone knows how many mAh in iPod Touch 4th generation battery?
Does anyone know how many mAh does the iPod Touch 4th generation battery have? Seems like Apple doesn't provide this particular info.
3
votes
1answer
227 views
Is switching 3G/4G off to save power a cheap trick?
Since UMTS is a lot fast than EDGE, data transfers via UMTS take less time.
When downloading the same file, it would take longer to be downloaded via EDGE.
Doesn't the difference in transfer time ...
0
votes
2answers
484 views
Is it normal for a 2011 MBP to display “Not Charging” while using Skype?
Whenever I use Skype, my MBP displays "Not Charging" about 95% of the time. When it is charging, it is extremely slow, gaining 1% over maybe an hour or so. Additionally, if I start using Skype on ...
3
votes
3answers
146 views
Can the clock speed of my 2011 MBAir i7 be slowed to conserve power?
Most of what I do with my 2011 i7 MBAir could be done with 10% of the available processor power. Is there a hack to slow the processor to conserve battery for the 95% of the time I don't need it?
4
votes
1answer
569 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 ...
0
votes
2answers
226 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?
5
votes
3answers
4k 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
506 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 ...
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
473 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 ...
26
votes
13answers
24k 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
2answers
142 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
205 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
508 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
642 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 ...
3
votes
3answers
4k 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 ...
3
votes
5answers
481 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 ...
0
votes
1answer
301 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. ...
7
votes
3answers
816 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 ...
3
votes
3answers
2k 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 ...
22
votes
6answers
5k 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
181 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
2k 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: ...
0
votes
1answer
125 views
iPhone tag - You're it [closed]
I want to create a game which can detect players within a set range.
Let's say.. if they're within 5 meters of eachother. The It player will tag the second player.
How would this best be done.. Tag ...
12
votes
5answers
12k views
How do I debug an out-of-control “kernel_task” process?
Just recently I noticed my battery life having a pretty significant drop and the "kernel_task" process using quite a bit of CPU (a constant 1-6% on my 2.8ghz dual-core i7, 2010 MBP). Obviously I think ...
2
votes
2answers
1k views
Does constant charging harm my Macbook Pro?
I usually connect my macbookpro with the charger 12-15hour/day and 7 days a week. I'm afraid the battery could lose capacity over time. However, I believe modern electronics should be able to handle ...
6
votes
6answers
4k views
Does Google Chrome have a significant impact on MacBook battery life compared to other browsers?
I've been reading , a bit about users noticing a severe drop in battery life when using Google Chrome.
I'm curious if this is a real issue - and attributed to the rendering/flash engine it uses.
0
votes
0answers
613 views
Scrabble drains battery [closed]
I have noticed that the official Scrabble app drains the battery very quickly on the iPod Touch 4 gen. I have 3 of these at home, and any one that is used to play Scrabble gets drained faster than the ...
2
votes
3answers
318 views
Battery Life on Macbook Pro
I've got a 15" macbook pro, i5 2.4ghz which I've inherited. When I use it to watch video -- with the notebooks monitor turned off, video piped to an external monitor - the battery dies in 90 - 120min. ...
0
votes
1answer
126 views
Have recent updates caused the iPad battery to not last as long?
I'm noticing my iPad battery seems to be going down very rapidly, even when not in use. Has anyone else seen this behaviour and what would be the most common causes?
4
votes
5answers
4k views
What's the best way to test the battery life on a MacBook Air?
I just recently got a MacBook Air and noticed that its battery life is much lower than Apple's estimate of 7 hours.
Since it is not the same, I would like to benchmark my battery life right now ...
4
votes
3answers
1k views
When plugged in, does the iPhone use the battery or the external source during heavy use?
I love to play games and do other tasks that quickly drain the iPhone's battery. Sometimes I'll use the phone while plugged into a power supply. Does the iPhone still use the battery when performing ...
0
votes
2answers
690 views
macbook pro absurdly small battery life
My Macbook Pro lasts me about 1.5 to 2 hours max on a single charge. This feels ridiculously low.
What can I do to increase the battery life on Macbook Pro?
Battery Information:
Model ...
1
vote
1answer
338 views
iPhone sending a lot of packets addressed to weird destinations, draining battery quickly
I have a jailbroken iPhone. Recently, I have realized that its battery usage is abysmal. Suspecting that it has something to do with the radio, I downloaded Data Counter from Cydia to check real-time ...
2
votes
3answers
285 views
iPod touch bad battery performance after updating to iOS 4
Hey, I own an iPod touch 2g which worked great until I updated to iOS4. After I did the update, it takes just a few hours for the battery to run out. Even if I´m not doing anything with it. I noticed ...
4
votes
1answer
666 views
iPhone 3GS battery oddities
I bought a 3GS in August 2009. After about 9 months I started seeing occasional precipitous drops in battery level overnight (i.e. from 50% to "dead", as in all you see is the red "charge me" icon). ...
3
votes
2answers
169 views
What is Best Practice when storing MacBooks for over a month?
We have a pod of 30 MacBooks and MacBook Pros that don't get used over the holidays.
What's best practice to store the laptops for 6 weeks? I know that when you store laptops for long periods at ...
10
votes
2answers
2k views
Should I avoid booting my MacBook if it's really cold?
As the title says; if my MacBook has been exposed to minus degrees, should I wait for it to reach room temperature before I boot it or am I just paranoid and have nothing to worry about?
