Questions tagged [battery]

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

Filter by
Sorted by
Tagged with
1
vote
1answer
29 views

What Is Optimal Battery Usage & Lost for iPad?

I am using my iPad Pro about 2.5 years. If %8 is lost from iPad Battery in 2.5 years ( March 2016) is this a sign of a bad battery?
2
votes
1answer
3k views

How to determine the cause of MacBook battery not charging?

I see that the question "why is my MacBook not charging?" gets asked a lot. The problem is, there are multiple reasons. Possible points of failure are: charger, cable, magsafe connector, DC input ...
1
vote
1answer
180 views

MacBook Pro Trackpad popped

I have an early 2011 MacBook Pro - admittedly this was ageing but still working OK, although it was warning about the battery. I last used it a few days ago, and just noticed the lid was open which ...
1
vote
1answer
29 views

iPhone 7 battery quickly discharges after using Philips dual USB car charger

I drove a car for about 3 hours and during the ride my iPhone 7 was connected to the Philips dual USB car charger. All this time screen was on and also was using Waze app. In addition to this another ...
0
votes
1answer
527 views

Does IFTTT app drain battery faster in iPhone (and Apple Watch)?

The IFTTT app sounds interesting with endless possibilities. I have just installed it but skeptical about using it because of the possibility of battery drain. The app has to keep track of every event ...
1
vote
2answers
948 views

Should I care too much about battery cycles? [duplicate]

I bought a MacBook Pro 13 inch 2017 two days ago and it’s been already 4 cycles Is it something that I have to care about?
8
votes
0answers
686 views

AirPods battery level with `ioreg`

I can query the battery level of my bluetooth devices with ioreg with ioreg -r -l -n devicename | grep '"BatteryPercent"\ =' with the following devices Keyboards: IOAppleBluetoothHIDDriver, ...
1
vote
0answers
37 views

MBP on battery suddenly powers off when charge reaches 12%

I recently installed a new battery in my early 2013 MBP 15" Retina. I put it through the recommended two complete charge/discharge cycles, and coconutBattery reports that the design capacity is 8460 ...
2
votes
4answers
2k views

Aura Pro X SSD Macbook Pro Retina 2015 issues

A few weeks ago I upgraded my Macbook Pro Retina 13" Early 2015's SSD to a larger one from OWC: the Aura Pro X. I was pretty happy with the purchase as I was getting 40% higher writing speeds and ...
4
votes
1answer
6k views

Is it safe to charge iPhone while it is powered off?

When I am in a rush I often plug my phone into it's charger and then turn it off (if I do it vise-versa it will turn on when I plug it in). I have found it charges a estimated 1.5x faster then while ...
0
votes
1answer
3k views

Upload Photos to iCloud Photo Library on iPhone only when plugged in?

I'm running into issues with my battery draining quickly (iPhone 6s with iOS 11) and it appears that Photos is the culprit (based on % battery use) presumably from uploading photos to iCloud Photo ...
0
votes
1answer
790 views

See which app drained my Macbook's battery

Sometimes I close my laptop, assuming that there is nothing running that prevents sleep, put it in my bag, and then find the next day that it didn't sleep - instead it ran out of battery and shut down....
1
vote
0answers
1k views

Macbook Pro Battery Condition: Replace Now [duplicate]

My Macbook Pro ( Retina 13 inch early 2015), all of a sudden, started showing "Condition: Replace Now" on battery. Everything was working fine till last night; when I turned on the laptop in the ...
4
votes
2answers
3k views

Macbook Pro Battery 0% and wrong date

Model: MacBook Pro Retina, 13-inch, Early 2015 While I was working, I didn't realize that the battery was low and as a result, my MacBook Pro shut down when the battery had no power. So, then I ...
2
votes
1answer
517 views

Macbook Air charger not working

The circumstances of my Macbook Air (late 2010 model) and its inability to charge the battery are a bit unique from the other cases I've read about on forums: My battery would not charge, and the ...
2
votes
2answers
101 views

iPhone 4s replaced battery, still drains quickly

I replaced the battery in my mom's old iPhone 4s. Battery is direct from iFixit. I've replaced iPhone batteries before and everything seemed to go right. Problem: I charge it fully before bed, and ...
21
votes
3answers
11k views

I think my MacBook Pro battery was replaced by Apple's service team. How do I check that?

I handed my MacBook Pro (15" Touch bar) to the service centre in order to have the keyboard replaced. Now, when I check the battery cycle count, it shows "1". Before it was at "82". Also, I'm ...
1
vote
2answers
61 views

Has my iPhone been bricked?

As of about 4 hours ago, my iPhone has refused to charge and the battery has drained, every time it gets enough power to turn on it displays the lock screen and "9%" battery before promptly dying ...
4
votes
2answers
358 views

60w charger only delivering 5.5w to battery?

I've just bought and installed a replacement battery for my 15" late 2012 MBP (non retina). The battery is not OEM but from iFixit as they are in my opinion the next best thing. I was interested to ...
1
vote
1answer
1k views

Understanding Mac Battery Information

In System Information, we can obtain information about the battery, e.g.: Battery Information: Model Information: Serial Number: D866192Q1NFFWLKE1 Manufacturer: SMP Device Name: ...
2
votes
2answers
439 views

Battery service and insanely low maximum charge

Recently my Macbook Pro Retina Late 2013 has started to shut down unexpectedly while running on battery. I thought it was because of my CPU was too hot but it was not the case. When checking it ...
1
vote
1answer
176 views

On iPhone 5s, can the battery itself be the cause of fast draining, even after a brand new U2 chip is installed?

My battery was draining very fast even when UNUSED and in LOW POWER MODE. This was happening even in AIRPLANE mode (i.e. overnight, unused, in Airplane and Low Power Modes both enabled). I got the ...
1
vote
1answer
95 views

Force MacBook to drain the battery while connected to charger

I leave my MacBook Pro on my desk nearly all the time, connected to the charger with the lid closed, connected to an external display. I've heard this is bad for the battery health, and everyone in ...
3
votes
1answer
128 views

Change what percentage/time remaining causes the battery icon on Mac to go red

I'm dead broke. So, I have a cheap battery for my dead-broke-esque 2008 MacBook. It only lasts about 2 hours on a full charge. However, it's a little goofy at times. Not in a dangerous way, just that ...
3
votes
1answer
162 views

iPhone 6 GPS problem on Pokemon Go

Recently when I'm playing Pokemon Go I get a message saying I don't have a GPS signal. Some people told me it could happen because the battery is pushing on the GPS component in the iPhone 6 model. ...
7
votes
1answer
850 views

Are Macbook Pros with a rusted / corroded MagSafe port safe to operate?

So I have MacBook Pro 13" 2015 and when I connect the MagSafe power connector to it, it seems like it’s more difficult to charge. So I check the MagSafe port and want to clean it I think. When I ...
2
votes
2answers
1k views

Does the MacBook Pro 15'' 8,2 Early 2011 accept both A1321 and A1382 batteries?

I have a MacBook Pro 15'' A1286, model 8,2 Early 2011 (with i7 @ 2,3 GHz). Inside is a A1382 battery telling that it must be replaced. I have in stock a A1321 battery which is in good condition. ...
2
votes
1answer
5k views

Are these normal temperatures?

I just got a new MacBook Pro 2017 128GB no-touchbar, bought it in the refurb. I'm doing a bit of Photoshop ( I know it's not the best MBP, but I really need it right now for work ) and I have Safari (...
0
votes
1answer
872 views

iPhone 7 battery discharges very fast after using Waze and charging 3 hours from the car

I charged my iPhone 7 (iOS 11.3.1) from car for about 3-4 hours during the ride and Waze app was on all the time. Next day I noticed that phone discharges really fast. Power saving mode helps, but ...
2
votes
0answers
2k views

Mid-2017 13" Touch Bar Macbook Pro Won't Turn On or Charge

I am trying to diagnose a 13" mid-2017 touch bar MacBook Pro (Model A1706 EMC 3163) that will not charge or turn on. This issue showed up a few days ago when the Apple-provided charger appeared to ...
2
votes
1answer
564 views

Does “Not Connected” state of Bluetooth/Wi-Fi drain my iPhone battery?

As we all know in iOS 11 there are three states for Bluetooth and Wi-Fi buttons in Control Centre: Off, Not Connected, and On. I'd like to know whether Not Connected state drains my iPhone battery or ...
0
votes
1answer
83 views

Macbook Air 2017 won't charge

I have the MacBook Air 2017 and until today it was working fine. Now, when I plug in the Mag Safe connector the light doesn't turn on nor does the computer detect that I've plugged the cable in. I'...
1
vote
1answer
2k views

Ridiculously slow MacBook Pro 15'' 2011 with low battery and El Capitan [duplicate]

Problem solved: see "Update 2" section. I have a MacBook Pro 15'', A1286, Early 2011 which was running OS X Lion and became extremely slow few weeks after an upgrade to El Capitan. The upgrade itself ...
0
votes
1answer
2k views

My iPad won't turn on even though it has charge

my ipad 2 won't turn on after i dropped it. it had 93% charge and is still on charge but won't turn on. i have pressed the power button, home button and both at the same time. i don't have a iTunes ...
0
votes
1answer
475 views

MacBook Air shuts down on fully charged, healthy battery [duplicate]

I have a MacBook Air 13" High Sierra, early 2015. The computer is only a year old. Battery life is good, amperage good, holding a charge. The problem is, the very instant I unplug the Magsafe ...
1
vote
1answer
26 views

Disable automatic boot on ac

So when my iPhone 5S shuts down over night because of low battery, I have following behavior the next day, when I connect it to my laptop or my car's usb: It turns on, tries to boot, but then dies ...
3
votes
3answers
825 views

Prevent Macbook from Charging past a certain level

I've had a previous MBP (5,3) with battery swelling. Looking around the stackexchange it doesn't seem too unusual even on newer models. A bit of reading I've seen tells me this can be caused by ...
1
vote
1answer
47 views

Scheduling a “sleep” event on Power Manager

I am using Mac OS El Capitan on my macbook pro and have just installed Power Manager following your recommendations elsewhere on this website (see Low Battery Alert for Mac OS X El Capitan). However,...
0
votes
1answer
3k views

Running MacBook Pro without battery

My MacBook's (Pro 2105) batteries are swollen and there is no AppleStore available here, is it possible to disconnect the battery from the mainboard and use the machine until I find replacement ...
3
votes
1answer
1k views

A1502 Late 2013 MacBook Pro will not boot, one exception

The ONLY time it's booted since it's been in my possession was when it was in the Apple Store, when it ran the Apple Diagnostics. What I've tried is: resetting the SMC (no reaction) using power on ...
3
votes
1answer
152 views

Late 2008 13" MacBook not detecting brand new battery

I bought a broken late 2008 13" Aluminum Unibody MacBook on eBay. Supposedly, according to the listing, Apple had said the original battery needed to be replaced. The other issue was the slightly-...
1
vote
0answers
208 views

Macbook turns off before battery is 0% when left unplugged. (Already reset SMC and PRAM several times) [duplicate]

This is my first question on this forum. My MacBook has been turning off randomly when left unplugged. It shuts down before the battery indicator reaches 0%. I have reset the SMC and PRAM several ...
1
vote
1answer
153 views

Late 2008 MacBook Pro loose Battery cover fix

I acquired a Late 2008 MacBook Pro. The bottom cover is a split bottom design. The battery cover is loose around the edge of the laptop. I'm guessing there was a magnetic strip holding it along the ...
2
votes
2answers
10k views

Create schedule to turn off iOS device every night..?

Is there a way to automatically turn off an iOS device every night (say from 0:00 to 6:00) to save battery WiFi bandwidth? There's an iPad mini in our living room basically running as Spotify/Podcast ...
3
votes
1answer
179 views

My MBP will only charge with a T shaped magsafe now

I have a MacBook Pro (15-inch, Early 2011) which came with a L shaped magsafe charger. I have been having problems for sometime now, wouldn't charge properly, cut off randomly, charger would cut out/...
7
votes
3answers
25k views

“Battery not charging” on MacBook Pro

I have the infamous "battery not charging" problem on my 2014 Retina MacBook Pro. The power source shows as "Power source: power adapter". I checked system info and I have 1100+ cycles, which I guess ...
4
votes
2answers
18k views

Connecting two monitors to MacBook Pro 2017 while charging it

I am using a 13" MacBook Pro 2017 with a Shinevi Hyperdrive adapter for access to a wider variety of ports, granting my access to a single Thunderbolt 3 port, a USB Type-C port, and a single HDMI port....
5
votes
1answer
2k views

Photos on Mac not syncing with iCloud – ThermalPolicy: Must not proceed

The Photos app on my Macbook hasn't been syncing for a while, ~6 months. I just came from holidays and added photos from my camera to it and again, nothing. Photos is stuck at "Uploading..." but there ...
2
votes
2answers
87 views

MacOS battery estimation question

Why do you think the OS estimates a battery percentage a little above the actual value? I noticed it is always between 0% and 5% more. In particular the two percentage gets closer when the remaining ...
4
votes
2answers
7k views

MacBook Pro battery drains quickly

I am using a MacBook Pro 15" Mid-2015, running macOS High Sierra 10.13.3. The current cycle count is 505, and battery "State of Health" according to coconut Battery is 85.2%. Here is the battery ...