Concerning devices that store electrical power which can be used to run various devices in the absence of external power.
4
votes
2answers
160 views
What charging mechanism to be used to maximise the battery life?
So I got my first Apple laptop, a Retina MacBook Pro. Since macbook pro retina's battery are no longer easily switchable I'm concerned about it's life and would like to maximize it. I have few ...
0
votes
2answers
229 views
Disfunctional trackpad on 2007 Macbook
I have a 2007 white Macbook here, of which the trackpad gradually became less responsive to the point where you can't press it down anymore at all. Neither the left nor the right button will ...
4
votes
1answer
834 views
Is it advisable to calibrate the battery on a MacBook?
How useful or necessary is it to calibrate the battery on a MacBook?
If it is, should it be carried out when first purchased and does calibration of the battery mean it will also last longer?
3
votes
1answer
158 views
Get notified when battery is charged
Is there a way to write a custom apple script or any other way to get a Alert or Desktop notification when the battery on my Macbook Pro reaches a certain percentage of charge?
1
vote
1answer
709 views
Can I charge my iPod Nano 2012 with the iPad USB plug?
I have a brand new Nano, and was wondering if I can use the same electrical connector that I've received with my iPad2 to charge the Nano? Will it be armfull for the Nano?
0
votes
1answer
403 views
How does iPhone5 battery fare with always ON 3G, not heavy music listening (+ 1-2 hours of Bluetoth), ocassional GPS and Camera use? [closed]
I WILL keep the 3G always switched ON.
Also continuous syncing of some services like Gmail, Twitter, Contacts/Calendar/Task apps, WhatsApp, FlipBoard/GoogleCurrents, SimpleNote, Instagram, IM, ...
3
votes
2answers
282 views
Unable to Turn off Battery Percentage Indicator
A few years ago when I had my iPhone 3GS, and wanted to see the battery displayed as a percentage (before this was implemented as a feature of iOS). I achieved this via jailbreak. Now my issue is ...
1
vote
1answer
240 views
Seems like my trackpad is never sleeping/shutting off
I'm experiencing some funny behavior with my Retina MacBook Pro and my Magic Trackpad. There are two symptoms that I believe could be related:
The batteries on my trackpad drain far more quickly ...
2
votes
2answers
3k views
Can I keep the MacBook Pro Retina's power-cord plugged in at all time? [duplicate]
Possible Duplicate:
Should I disconnect my MacBook Pro’s power cord when the battery is fully charged?
I'm wondering if it's reasonable to use a MacBook Pro Retina as a desktop replacement ...
0
votes
0answers
26 views
Possible to only AV scan while computer is on AC power?
My battery life dropped to 50% on a Macbook Pro within 40 minutes due to a AV scan. In addition the laptop itself got very very hot.
I'm currently using the free Sophos software and don't see an ...
3
votes
3answers
1k views
Is it wise to turn off the iPad completely if I don't use it during the day?
A friend of mine has an iPad that she uses only once a day for about a half hour.
I told her to turn it off completely in between uses to conserve energy - no point having the device run in standby ...
0
votes
1answer
29 views
More Email Account cost more battery?
I have around 15 email accounts, if i setup all that's 15 emails in iPhone with IMAP method.
Will it cost more battery than i just only setup 1 email account?
1
vote
2answers
1k views
Why would an iPhone 4S drops from 100% charge upon unplugging it?
I have notice lately (in last two months or so) after disconnecting my iPhone 4s (with iOS 6) from the charger in the morning after an entire night of charger it immediately drops from 100% to 98%. ...
0
votes
1answer
453 views
iPhone 4S/IOS6 - battery drain after the camera usage
Just discovered than my iPhone4S/IOS6 draining battery too fast after I using the camera. So:
after the fresh restart the phone lasts 3 days - when not taking photos or videos, but
enough take one ...
2
votes
2answers
203 views
First cycle of MacBook battery: runs at 97% capacity, is this normal?
I ordered my brand new Macbook Air with 8 GB RAM and picked up from Apple Store two days ago. However after fully running out of battery for first time, I recharged it to 100% and coconutBattery says ...
0
votes
0answers
204 views
Battery health inconsistent
With the iStat Nano dashboard widget I can see the health of the battery on my 10.6.8 Macbook Pro. This health value jumps from 76%, to 84%, to 80%, etc. just in a few hours.
I've reset the SMC ...
0
votes
1answer
116 views
System clock reset to Jan 2001?
I got an error message saying something like "System clock reset to Jan 2001" and then many things stopped working. I has my laptop in standby mode and the battery must have gone completely flat ...
1
vote
2answers
354 views
Brand New Macbook Pro (Mid 2012) already with 2 cycle counts
Yesterday I unboxed a MacBook Pro (Mid 2012) and I am disappointed that the battery has less than its "manufacturer capacity" and has 2 cycles already. Is that normal?
-1
votes
1answer
169 views
What's broken in my iPhone
I just got my friends' iPhone and he claims he's broken. So I sent it to a repair centre and they told me the logic board was broken. However, when I try to recharge the iPhone by plugging it in the ...
0
votes
1answer
324 views
Can CPU Speed Stepping be prevented?
A while ago, I asked a question regarding the reason behind my computer slowing when it had ~5% battery or less. I was told that it was either CPU speed stepping or the Macbook Pro automatically ...
1
vote
2answers
874 views
How often should I remove the charger from my rMBP?
I want my battery to remain healthy. I used to charge it full then remove the charger after it's done, then put it back on when it goes down to 10% .. However this is becoming hectic and I was ...
0
votes
0answers
57 views
iBook battery repack
I have several ibook batteries that have gone bad and I was wanting to open them up and make some good batteries out of all of them by taking out the bad cells and putting other ones in there place, ...
2
votes
1answer
2k 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
167 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
110 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
167 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 ...
0
votes
0answers
192 views
Charging suddenly stopped
After opening the lid on my 2010 MacBook Pro, the machine indicated it was not charging yet and the MagSafe light was amber.
I followed the SMC instructions, installed the Java update, restarted, and ...
2
votes
1answer
222 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
203 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
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
69 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
931 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?
2
votes
1answer
404 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 ...
3
votes
2answers
9k 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
154 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?
2
votes
2answers
2k 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
2k 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 ...
2
votes
0answers
717 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 ...
1
vote
0answers
138 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 ...
1
vote
1answer
2k 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
1k 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
...
2
votes
1answer
208 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?
1
vote
1answer
3k 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
294 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
1k 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
643 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
608 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
236 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
291 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
205 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 ...
