Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange
Join us in building a kind, collaborative learning community via our updated Code of Conduct.

Questions tagged [battery]

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

1
vote
1answer
5 views

Which problems can be expected by continuing to use a MacBook Pro Battery already due for replacement?

I turned in my MacBook Pro 15" Late-2013 to a service shop. The battery indicator recently has said either "Condition: Replace Now" or "Condition: Service Battery" (I can't remember which). The ...
2
votes
2answers
23 views

Is it safe to change Apple Watch battery with more capacity?

For example, while the original battery capacity for Apple Watch Series 1 (38 mm) is 205 mAh, can I replace it with a 273 mAh (38 mm) battery (originally for Apple Watch Series 2, 38 mm), and assuming ...
0
votes
0answers
28 views

Battery drain during sleep (MacBook Air) - weird “powerd” processes?

My MacBook Air 13-inch (Early 2015) loses about 30% battery every night - last night went from 99% at midnight to 73% at 9:00AM without ever being opened. PowerNap is off. Looking at /var/logs/...
0
votes
1answer
18 views

12V - 0,67 A USB Wall Charger for iPod Classic

I have a vintage iPod Classic 2004: I want charge it with my 10W iPad Pro charger and an USB A -> 30-pin old Apple cable. However, it not charged and started to showing Apple logo in a loop. It ran ...
0
votes
1answer
8 views

How to repair disconnected battery connector MacBook Air 2011

I "inadvertently" read foolishly broke the soldered pins in the MacBook Air battery connector while trying to replace the battery. Any easy fix??
0
votes
0answers
7 views

My MacBook Air is not getting charged

My MacBook Air is getting charged only when the SMC is reset, whenever I have to charge SMC needs to be reset otherwise everything is working fine. What should I do.?
2
votes
1answer
35 views

My 3 years old 13'' MacBook Pro Retina doesn't sit flat

There are 4 rubber feet on the bottom of MacBook Pro. They worked well before. But recently 2 of them (near the touch pad) cannot touch the flat. I phoned Apple support and she said that this is most ...
0
votes
1answer
113 views

2018 MacBook Pro experiencing very poor battery life (<4 hours) with light usage

I bought a new 2018 15'' MacBook Pro with Touch Bar a couple weeks ago. So far its battery life has been abysmal, reaching 0% after less than 4 hours of very light usage (only web browsing). I ...
0
votes
1answer
23 views

Managing PreventUserIdleSystemSleep on MacBook

I have had some issues with the battery on my MacBook draining prematurely with the lid shut, and I think I have found a clue. Following advice found elsewhere on the Web, when I issue: pmset -g ...
0
votes
1answer
45 views

MacBook Pro 2018 & LG UltraFine 5K Display Power Comsumption

I'm looking to purchase a new MacBook Pro and a monitor, and I'm currently looking at the 15" MacBook Pro (2018) with the LG UltraFine 5K Display. I'm fully aware that the MacBook Pro and the LG ...
0
votes
1answer
8 views

Can i charge mag safe 1 laptop via external portable battery ?

Ive got a mid 2012 15" Macbook Pro with which has a magsafe 1 power port. Is it possible to charge this model of laptop with an external battery like the 20000 Mah units you can get to charge phones ...
1
vote
1answer
32 views

Is it good to keep my MacBook Pro on charge? [duplicate]

I recently got the new MacBook Pro 2018 and would like to look after the battery better as I need it for university and would keep it for at least 3 years. I understand that they are lithium-ion ...
1
vote
2answers
18 views

iPhone 5 (iOS 10.3.3) getting pretty hot within brief usage of 5-10 minutes

I've been using an iPhone 5 for about a year and have never faced this issue. Due to some reason which I am unaware of, whenever I use it in an air-conditioned room, it gets pretty hot from both back ...
1
vote
1answer
32 views

Mac runs as long as plugged in, but unpredictably shuts off otherwise - clock resets

I have a MacBook Pro, as shown in the image below. Also, as I think it might use a lot of power, I run Ubuntu on a vagrant machine to test website apps. Recently (last 2-3 months), the battery would ...
2
votes
2answers
27 views

Why is my ipad being charged at low speed and sometimes discharged even when plugged in?

When I plug in my tablet and use it normally at normal brightness, its battery is often discharging (at 20-2000mA) and when it charges the speed is very low (only 300-500mA) The tablet also runs ...
2
votes
2answers
40 views

Does turning off cellular data significantly improve battery life?

I almost always turn off cellular data when I lock the screen. I only turn it on when I’m using internet. But it’s annoying to do that almost every time. Does it worth the trouble?
1
vote
1answer
37 views

iPad Pro 10.5" down to 92% battery health after 6 months of use

I bought an iPad in January 2018 (this was written in July 2018). The coconutBattery app indicates it was manufactured in August 2017. It has gone through 63 charging cycles and the battery health is ...
2
votes
1answer
27 views

Scheduled startup/wake while on battery power

I would like to automatically turn my Macbook Pro on at a certain time in the future (preferably with Terminal). However, I found out that this does not work when the computer is not connected to a ...
1
vote
0answers
16 views

Customise charging for MacBook Pro? [duplicate]

Is there any way to customise the charging schedule for my MacBook Pro (2017)? Essentially, I have long periods when my machine is plugged into the mains due to running intensive models, unattended, ...
1
vote
2answers
33 views

How to disconnect MacBook Pro 15 2017 battery?

I'm struggling to figure out how to "unplug" or disconnect the battery of my retina MacBook Pro 15' 2017 from its logic board, to reset the SMC. What cable(s) do I need to disconnect exactly? 🤔 ...
3
votes
2answers
58 views

MacBook Pro 15 2017 Battery Condition: Replace Now

My 3 months old Retina MacBook Pro 15 2017 is telling me to replace the battery The system report metrics seem normal I've tried all four USB-C ports, done an SMC and NVRAM reset, still not charging....
1
vote
1answer
71 views

iPhone 6 battery drain fast

My mom's iPhone battery is suddenly draining very fast (its losing 1% in a 10 second time period when the screen is on), so I checked the battery health in the Settings app, and it says it has 51% ...
1
vote
1answer
71 views

Does my MacBook battery have an issue?

It's been nearly 1yr & 6 months since I bought my MacBook 13" 2015 retina. Now, the battery only holds 57% of its original capacity. Number of charge cycles is 234. This battery can hold only 2 - ...
0
votes
0answers
22 views

MacBook Air 2015 hardware issue

A few years ago (in university), I accidently spilt a can of Dr Pepper on my brand new MacBook Air (most expensive can I've ever drank). I took the notebook to my local Apple store to get a diagnosis ...
1
vote
1answer
158 views

rMBP high battery drain, doesn't seem to sleep after HS upgrade

I have a 2015 A1502 13" Retina MBP, originally running Sierra. Since upgrading it to High Sierra, it doesn't seem to sleep properly. Before, I could leave it in sleep mode on its battery for over a ...
1
vote
1answer
26 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
95 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
31 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
23 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
43 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
33 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?
3
votes
0answers
47 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
25 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 ...
1
vote
2answers
181 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
57 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
101 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
181 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....
0
votes
0answers
21 views

is that harmful ,using macbook without battery [duplicate]

my battery was swollen.I got out the battery and use macbook with Ac charger . after that i find out , system was slower . i dont installed battery on laptop yet.my macbook model is ME294 ,2013 15'. ...
1
vote
0answers
88 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 ...
0
votes
0answers
32 views

iPhone 7 Plus turned off and it wont turn back on

My iPhone 7 Plus turned off and went to a black screen. I've tried: holding the power button and the volume down button plugging it in into my wall charger plugging it into my laptop In all cases ...
2
votes
2answers
166 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
58 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
43 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 ...
20
votes
3answers
6k 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
0answers
23 views

Where is documentation for the AppleSmartBattery portion of ioreg located

I'm trying to understand the various keys printed from the following command: ioreg -rc AppleSmartBattery Does Apple document these somewhere? Specifically I want to know what the following keys ...
1
vote
2answers
44 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 ...
3
votes
2answers
54 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 ...
0
votes
0answers
25 views

I would like to use my Macbook Pro as a powerbank but

when it's closed the Usb port doesn't provide energy. How i can do this? If i plug the phone while using the mac it works but after some minutes that i close it, it stops providing and it's like all ...
1
vote
0answers
40 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
35 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 ...