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

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4 views

Iphone Dropped and will not turn on

Recently i dropped my phone, with no visibal damage i carried on using it. After a while the phone began 'searching' for a network, i turned the phone off and on again in hope that this would work but ...
0
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1answer
16 views

Macbook Pro with abnormal CPU usage and unrecognised battery. How to alternative SMC reset

This Macbook Pro (15" circa 2012) is giving me trouble. After a slight water spill incident, I removed and replaced the hard drive, optical drive and battery (warning sticker ignored). After another ...
0
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2answers
23 views

What is the best way to save iPhone battery?

Since I've moved to iPhone 4 from a 3Gs, my battery drops down extremely fast. If i use it for 20 minutes at the beginning of the day it goes from 100% to 60% and by 3PM with normal use it's at 20%. ...
0
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2answers
74 views

Does the grayscale feature of iOS 8 extend the battery life?

In the way to reduce the power usage of my iPhone 5 (iOS 8), I'm simulating the power saving mode of Samsung Galaxy Note 4 by turning on the "Greyscale mode" but does it really reduce the power usage ...
0
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1answer
23 views

iPad won't turn on after being drained [duplicate]

What if my iPad didn't turn on after battery drain? I did all the steps but it still didn't work. Is it already damaged or can I recover it on an Apple Store?
0
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1answer
14 views

iPad 4 Charges Very Slowly

After I updated to iOS 8.4, My iPad has been charging Very slowly. Times: 12:00PM (noon) - iPad died, switched on charger. (1%) 1:30PM - iPad comes on. (2%) 3:00PM - 4% 4.00PM - 9% 5:10PM - 9% ...
0
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0answers
9 views

Xserver Early 2009 Raid Card

I have an Xserve 2009 with Yosemite installed. The 3 hdd are configured as RAID5. It was working fine until this morning. Upon reboot I see the folder with the question mark. I put a macbook pro in ...
0
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0answers
21 views

Should a MacBook Pro be used without a charger until 1% until charging instead of keeping it always on charger? [duplicate]

There are two charging styles: use until 1% -> charge -> use until 1% -> charge... always charge Which one is better?
1
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2answers
56 views

Is there a way to tell how long your Mac was turned on on a distinctive day?

I would like to know how long my MacBook Pro was on today - total uptime for the day. I just bought it, and I thought the battery was bad but it went on for longer than I thought. Of course, I wasn't ...
0
votes
1answer
26 views

How to disable alert notifications in iOS when battery drops to 20% and then to 10%?

Is there a way to disable these alerts that appear when battery drops down to 20% and later on to 10%? (iPhone 4s iOS 8.4.1).
0
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1answer
15 views

Low Battery Performance - Activity Monitor Shows Faults in CPU statistics

My Macbook battery (I guess batteries is the more correct term in this new Macbook) isn't getting battery life as estimated by specs, and it is already lessened in only about 2 months. Today, I ran a ...
1
vote
1answer
38 views

iPhone is dead, will not charge

I have an iPhone 4s running on iOS 8.1.3. I've owned it for about 2-3 years now and have taken good care of it physically and hardware wise. But recently my phone had died. I plugged it in to the ...
1
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1answer
44 views

Does iPhone battery life last longer using Wi-Fi vs Cellular Network?

Just out of curiosity and for my knowledge, from a software and hardware standpoint prospective, I read: When you use your device (iPhone) to access data, a Wi-Fi connection uses less power than a ...
1
vote
1answer
13 views

What should I know about replacing my computer's battery?

My early 2011 13" MBP has been telling me to "Replace Soon" the battery, and today it's finally getting its wish. I know the hardware procedure, courtesy of iFixit, but is there anything else I should ...
0
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0answers
34 views

MacBook Air Won't turn on

I've had this MacBook for only about a week and I'm having issues with the fan speed, battery percentage, keyboard back-light and now it won't switch on. I was was having issues with the trackpad and ...
-3
votes
0answers
21 views

about battery terminal on board and charging

i have 2 iphone 4s. one is locked by iCloud and second is disasembled on logic board i was destroy power connector/terminal for battery. all details on the photo there is removed diods So the pings ...
1
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0answers
40 views

iPhone 5 won't charge in certain geographic location

My iPhone 5 charges fine in NYC - albeit with weakening battery life. I went to Maine a couple weeks ago and it would not charge. Used the same charging hardware as in NYC which also worked fine ...
0
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1answer
32 views

How often should I use the battery on my MacBook (which I exclusively use as desktop)? [duplicate]

Since getting my mb-pro 3 years ago, I've only used it as a desktop. A few times, the battery has kicked-in for a few hours while the power was out. Someday, I might want to task it as a laptop. For ...
0
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0answers
8 views

iPhone 4S Battery Over-Charge Shut Off

Could anyone please tell me where the iPhone 4S initiates the shut-off with any 'over-charge' to the battery? (i.e. keeping phone in charger all night). In other words, is this a mechanism within ...
1
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1answer
58 views

Will it damage the battery if I use my MacBook Pro while playing WOW or just using it, while charging?

I just received my first MacBook Pro as a birthday gift, and I am one of those people that tends to "baby" their electronics. I also tend to play World of Warcraft (WOW) quite a bit, but the problem ...
0
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0answers
40 views

MacBook Air trackpad erratic, no bulging battery

I have a MacBook Air 13-inch, Mid 2011 10.10.3 (out of warranty) bought in 2012 and I have been struggling with trackpad issues since January 2015 soon after receiving the warning "Battery Service" ...
0
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0answers
11 views

Magic Mouse low battery when not in touch with Mac

Anybody else notice that their Magic Mouse goes dead a lot quicker ... like... within 15 days or so if you use a MacBook and are always leaving your mouse behind? I use great batteries, won't mention ...
0
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1answer
23 views

My iphone 4s turns on while charging, but once on it turns off

Recently my phone died and I plugged it in, and like usual it turned itself on. But I noticed that once the phone was turned on it wasn't charging. I tried a new charger, but all the chargers I have ...
0
votes
1answer
41 views

Macbook Pro 2012 shutsdown suddenly at 25% battery

I have a Macbook Pro Unibody Mid 2012 and used the battery for only 118 cycles. Since a few weeks ago whenever I'm on battery and it reaches <25% my Macbook shuts down immediately (no warning, no ...
0
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0answers
31 views

How can I determine the battery impact of using scaled resolutions on my MB Pro Retina?

(My machine is a stock mid-2014 MB Pro Retina 13") I noticed a definitive drop in how long my battery lasts when I switched to the largest resolution available (to have more space to work with) ...
2
votes
2answers
125 views

How to disable SpeedStep/XCPM on Macbook Pro 11,1 OSX 10.10.2?

Does anybody know how to disable OSX from throttling/underclocking the CPU on a Macbook when the battery gets low on power? I think the feature is called SpeedStep. The problem is that my battery is ...
0
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0answers
21 views

Dropbox drains battery, what can I do?

I have a 13" retina macbook pro, and I recently noticed, that dropbox started using up a lot of my battery, with an average use of about 16 (units in the activity monitor). It has probably been a ...
0
votes
1answer
31 views

MBP 15" early 2011 shuts down after login without power cord

Update #1: I uninstalled gfxcardstatus. Now the only times it shuts down instantly are when I initially log in (tried on user with Filevault and one without), and when I log out from one user ...
3
votes
2answers
78 views

Bulge in MacBook Pro near Hard drive

I have noticed in that past 24 hours that two rigid and straight "lines" have developed as bulges on my Mid 2010 MacBook Pro 15 inch. They are noticeable when looking at it in the light and you can ...
0
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0answers
148 views

iPhone 5S 8.4 JB fast battery drain. Tried everything

So, I tried to fix battery drain on 8.3 and deleted a lot of tweaks. I saw that locationd stay in memory more than 5 hours ("top -o time"), etc. Then I restore to 8.4 and installed only "must-have" ...
0
votes
1answer
12 views

How to maximise the life of the Apple battery charger set (for Magic Mouse) batteries?

I purchased a magic mouse battery charger set today. It had a battery charger and 6 batteries. Now I put 2 batteries into the magic mouse and 4 batteries are in the box. My question is how to maximise ...
0
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0answers
19 views

As a new Swift/Xcode user, I want to setup a Playground to fetch the battery status of my macbook

As a new Swift/Xcode user, I want to setup a Playground to fetch the battery status of my macbook. I have already tried the following: import Cocoa import IOKit import Foundation var blob = ...
0
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1answer
10 views

Best practices for storing a replacement battery?

My early 2011 MBP has been giving me the "Replace Soon" battery warning, and an app I have says that the battery can hold 57% of its original capacity. I bought a new one on Amazon, but now I've ...
0
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1answer
23 views

What are your tips for finding a replacement battery for mac book pro? [closed]

The battery on my mac book pro (late 2008) running OS X Yosemite needs to be replaced. The battery only holds half capacity. What are your tips for finding a good battery. What battery do you ...
0
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0answers
21 views

Are location-sensitive reminders bad for battery life and/or data usage?

If I understand iOS's location-aware reminders correctly, they work by constantly checking your location until they see that you're in the specified range. Wouldn't this be really detrimental to the ...
0
votes
1answer
60 views

What is this infrared light on my iPhone 4 and how do I turn it off?

This is a picture of my iPhone 4 that I just took with an infrared-capable camera. As you can see, there is a light on top, around the middle. You can only see it with with an infrared-enabled camera, ...
3
votes
2answers
32 views

Don't charge iphone when plugged into macbook?

Is it possible to temporarily keep your iPhone from draining the macbook battery? When I'm out and about I sometimes want to connect my [nearly empty] macbook to my [not so empty] iphone so I can ...
0
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0answers
19 views

Disable cellular radio on iPad when sleeping?

I want to save battery and not be logged in CDRs when my iPad is idle (besides, I have two phones that are online constantly so I am already notified when I receive mail or other updates), hence I ...
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1answer
38 views

Should I just snap this metal bit off my iPhone 5?

I'm trying to replace my iPhone 5 battery, but there's this one stupid stripped screw that won't come out of the bottom metal battery cover. Would it be a bad idea to just cut that metal cover off, ...
1
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0answers
23 views

How to configure the battery percentage at which the mac will hibernate

I've replaced my macbook pro battery with a non-official one and since the battery lasts a few hours less that the original one did at first (6h < 9h) when my battery starts running out at 1% ...
0
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0answers
22 views

How do I determine the last time a Macbook's battery has been drained to zero?

Apple recommends to completely drain one's Macbook battery once a month. After a full drain, Apple recommends to leave the Macbook off for at least five hours, which ensures that the battery drains to ...
2
votes
1answer
53 views

Samsung Galaxy 6 sets off Apple Pay on iPhone 6

I have to carry two phones - one Samsung Galaxy 6 and one iPhone 6. Unfortunately, something in the Galaxy sets off the Apple Pay on the iPhone when they're in the same pocket, and it constantly shows ...
0
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0answers
17 views

0% Battery, and not charging again

My battery died last night, and since then the MacBook Pro (2012) is not charging. Any ideas (except for take it to an Apple store, which I cannot for a couple of hours)?
0
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0answers
59 views

iPhone 5 only charges with third party car charger

After last night my iPhone would detect that the phone was plugged in to a wall or laptop but would not actually charge. I tried updating to iOS8 and cleaned the port with a toothbrush and a paper ...
1
vote
1answer
49 views

Macbook Air 2008 won't boot after error message asking to shut down due to low battery

Yesterday my Macbook Air (original), model: a1237 flashed an error message asking the user to shutdown due to low battery. Since it was not me, but my brother who was operating the macbook at that ...
1
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1answer
40 views

MacBook unibody 2010 will not charge reliably

I have a 2010 MacBook unibody (the white one, not the Pro) and I have been having all sorts of trouble with it. While I have most of the other problems figured out, there is one that keep persisting ...
0
votes
1answer
222 views

How to preserve MacbookPro battery from degradation? [duplicate]

Platform: OS X: Yosemite 10.10.4; MacbookPro 15" Retina (mid-2015). Fact: There is aging for battery in any case - using or not. But while using - there is difference of how to use. My questions - in ...
3
votes
0answers
169 views

Macbook Pro Retina “Battery Is Not Charging”

My retina macbook pro is currently on 4% but when I plug it in the battery icon up the top shows the plug icon instead of the lightning bolt icon inside it to say it's charging and stays on the same ...
0
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1answer
155 views

Macbook Air restart and kernel panic issues

My Macbook Air 13 running Yosemite 10.10.3 inch doesn't resume from sleep always. Also, there is a 'No batteries Available' sign frequently and a cross (X) on the battery icon. Also, it doesn't ...
1
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1answer
77 views

iPod - How to display the battery remaining as a percentage? [duplicate]

How can I display the remaining battery power as a percentage on an iPod Touch 5.