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

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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
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0answers
138 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 ...
2
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0answers
54 views

App to allow battery charge only to a certain extent

I'd like to charge my rMBP battery only up to 85% or 90%, in order to preserve it. Is there any app that stops charging at user selected percentages? If not, is there any other method? (Apart from ...
2
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0answers
1k views

iPhone 4S 64GB not charging unless switched off

My iPhone is simply not charging unless I switch it off while it is already plugged in. I suspect it to be a software problem, as when its off it charges. Windows does not seem to recognize the device ...
2
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0answers
45 views

Why is my rMBP drawing twice as much power as my friend's when idle?

Mine is late 2012 and has 8GB RAM. His is late 2014 and has 16GB RAM. Both have an SSD (although of different size) and both are running Yosemite. We set the brightness to 6 pips each and turn off ...
2
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0answers
769 views

iPhone heat and battery drain

In december 2013 I bought an iPhone 5s. A couple of weeks ago I restored my iPhone to 7.1.1 using a back-up on my Mac. Since then, the battery drains very quickly and the devices heats up most of the ...
2
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0answers
464 views

How much will upgraded processor and RAM affect battery life?

I'm considering purchasing a new Macbook Air, and one of my main goals would be to maximize battery life. If I upgrade the standard processor (from 1.3GHz Dual-Core Intel Core i5 to 1.7GHz Dual-Core ...
2
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0answers
202 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 ...
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38 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 ...
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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% ...
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142 views

Low Battery Crash with no Battery Usage on ipad 2 with ios 8.3

My iPad 2 has been crashing recently with no warning and then takes several hours charging before it comes back to life. When it crashes there is only a low battery icon, and no charging symbol when ...
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0answers
59 views

Incoming call is not registered on iPhone if iPhone turns of before I pick up

The situation: iPhone is low on battery I receive incoming call I try to pick up and phone turns of during that moment In this situation incoming phone number is not registered on the recent call ...
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0answers
52 views

My Macbook Pro says I'm connected to a power source even when unplugged

I have a Macbook Pro mid-2010 (Macbook 7,1) that is acting a bit weird. The battery status always says I'm connected to a power source even when the charger is unplugged. The battery still discharges, ...
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0answers
338 views

Macbook pro mid-2010 randomly turns off?

This has been happening for around 6 months and it has gotten worse. I thought it was the battery because it had close to 1500 cycles. But I recently replaced it and now the problem seems worse. The ...
1
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0answers
368 views

Tweaking OS X 10.10 Yosemite to auto-toggle Reduced Transparency when on battery

I am curious about whether there is a way in OS X to hook to some events to find out whether the laptop is plugged into power. (And furthermore how we can control the "Reduced Transparency" settings ...
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0answers
124 views

Estimating battery life remaining while charging in OS X

Retina Macbook Pro's battery life is amazing, and it is handy having an accurate estimate of how much longer it will last on the remaining charge, in hours and minutes. While charging however, it ...
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320 views

Disparity between “Charge remaining” and “Full Charge Capacity” on relatively new MacBook Pro?

I have the latest retina MacBook Pro. While looking at some statistics, I saw the following: My computer is currently on 100% charge (charger is plugged in), and it seems odd that the difference is ...
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0answers
163 views

Battery Life on MBPr (2014 model) with*out* dedicated GPU

I am considering to try MBPr (late 2014 models) coming from Windows environment, which means that I would still need to use Windows about 50% of the time. One of the strong points in favour of MBPr is ...
1
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0answers
80 views

iOS: Default Battery Percentage Level for individual services to switch off

We all know iOS switches off services one by one when the battery reaches critical level. But is there any fixed battery level to cut down individual services. For example, Bluetooth will be switched ...
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126 views

What are the ways to solve my iPhone power drainage problem?

I am using iPhone 5s with iOS 7.1.1 I have a problem from 3 days ago. The battery keeps draining and the phone keeps warm in the whole day. I found that mstreamd keeps starting every minute. From ...
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0answers
78 views

How performance of Macbook Air 13" mid-2011 battery from iFixit compares to the original one?

Please share your performance of the replacement battery as sold by iFixit (I'm interested in the New one, not B-Stock) as compared to the original battery from Apple for Macbook Air 13" mid-2011 ...
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0answers
54 views

iOS - Howto get notification email when battery is less than 20%

I wish to receive an alert/notification with email when iPad Mini battery is less are equal than 20% I use iPad mini only in public transport, not regularly. So no manual solution.
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0answers
54 views

Using old MacBook battery as an USB charger. Known adapters/cases?

I have an old MacBook with an OK battery. When I go out sailing or traveling I have a lead battery with me to be able to charge USB-things. iPhone, portable speakers, etc. The old MacBooks battery ...
1
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0answers
142 views

Does APNS work over LTE, or only UMTS/GSM and WiFi?

Over at Android Enthusiasts, we are having a discussion of what's more battery-life efficient — having APNS over GSM or UMTS networks during sleep, as TS4264 appears to indicate (thus ...
1
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0answers
104 views

Battery value in terminal different to battery value in menu bar

My MacBook Pro Retina is currently reporting 100% battery in the menu bar, however if I run the following command in terminal; ioreg -l -w0 |grep Capacity The following is returned; | | ...
1
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0answers
531 views

MBP restarting twice after going into deep sleep from a fully drained battery

Ever since I installed Mavericks on my 15" Mid-2012 MBP (4GB), I've noticed that if I let my machine completely drain to 0% and it (supposedly) goes into Deep Sleep, when I plug it back in and ...
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73 views

Can anything cause the battery “cycles count” to appear LOWER than it really is?

My Macbook battery is essentially dead. It has behaved erratically for the past 1.5 year. In any case I checked the cycle count today and found only 270 something. If I recall correctly, I had much ...
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544 views

Dim LED on Magsafe, Macbook Pro won't boot

I have a Macbook Pro late 2008, and today, it suddenly decided to stop booting. The battery level is very low, and connecting the adapter to it shows a very dim green light on the Magsafe connector. ...
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81 views

i have changed my Iphone 3g battery but it stucks on 61%

Hey guys did a search and couldnt find anything that really suited my situation. I recently changed my iphone battery, The Phone turns on and the battery decrease imediately its decrease 1% with in 10 ...
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147 views

iPhone 5 battery unused for 2 month

I would like to know if there is a risk for my iPhone 5 battery after remaining 2 months unused and uncharged. I'm going to re-use my iPhone, and I wonder if it stills usable for daily uses. Any ...
1
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0answers
1k views

Fusion Drive Setup: Possible to force the HDD to spin down as long as your reading from/writing to the SSD?

I'm considering to replace my optical drive in my MacBook Pro with an SSD. When using it as separate Volume, the advantage is that you can spin down the HDD, thus reduce noise and first and foremost, ...
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0answers
296 views

What's the easiest/cheapest way to replace my battery? 2009 MBP

I have a 2009 MacBook Pro (5,5). I can spend about $150 either taking it to the apple store and having them replace it or buying all the stuff from iFixit and doing it myself. Is there any ...
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0answers
672 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 ...
0
votes
0answers
6 views

mba; service battery; turned off at 18%

The screen of a 13" MacBook Air (Mid 2012) just went black at 20% battery. I clicked the power button and it said to connect to the charger. Rather confused, I plugged it in and turned on the laptop. ...
0
votes
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
31 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 ...
0
votes
0answers
7 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 ...
0
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0answers
38 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
votes
0answers
28 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) ...
0
votes
0answers
20 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
0answers
136 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
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0answers
18 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
votes
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
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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 ...
0
votes
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 ...
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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
56 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 ...
0
votes
0answers
41 views

MagSafe light turns out orange after few seconds

Is it normal for MagSafe to have orange light (not directly to be green light) 3-4 seconds after plugged to outlet ? I'm a bit nervous with this matter as I've just bought a new mbp after my ...
0
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0answers
12 views

Low battery notification only at < 5%

I have the latest MBP retina 15", it is normal that it informs me of the low battery level at such low percentage? Since this percentage changes every time I think is more something related to the ...