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Questions tagged [battery]

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

2
votes
0answers
11 views

Macbook Air doesn't turn on

I have a 2017 Macbook Air 2017. A week ago I turned it on and wrote my password, then it shut down. I tried to turn on but nothing happened. I read some posts on the Internet and tried the following: ...
0
votes
1answer
29 views

How do I diagnose battery drain whilst asleep?

Today I've had my 2017 MacBook Pro asleep in my bag all day. I left home with it at 100% battery and ended up not using it for the entire day, I didn't even open the lid. When I got home, I opened ...
-5
votes
0answers
34 views

My iPhone is acting possessed [duplicate]

Hardware: iPhone 6s OS: Official iOS 11.4 First, this started a few weeks ago. How do I fix erratic battery meter behavior on iOS? I previously blamed and associated this behavior with a specific ...
0
votes
2answers
43 views

Erratic iOS battery meter and usage from Music app randomly playing on mute

Since 3 weeks ago the battery meter on my iPhone 6s with iOS 11.4 has been highly inaccurate. The meter will stick at a certain percentage far longer than it should, then rapidly drop down to a lower ...
0
votes
1answer
21 views

iPhone 6: battery replacement and display problem

I'm planning to have a battery replacement procedure for my old iPhone 6. However, at the same time, I'm also experiencing another problem with it: the bottom of the display seems like not to be fully ...
0
votes
1answer
29 views

New battery installation in the Macbook Pro

I get a new battery from a repair shop yesterday for the MacBook Pro and the configuration is provided below, I read that the battery life for the new installation should be about 7+ hours while I ...
6
votes
2answers
607 views

Storability / shelf life of a newly bought iPad in unopened original packaging

Apple may release a new series of iPad soon in future. It may affect the prices for lower-tier devices or they may get discontinued. I am planning to give an iPad 9.7 (2018) as a Christmas present. ...
2
votes
1answer
11 views

Using USB ports for charging when MacBook Pro is not connected to power source and with lid closed

I remember than on older MacBooks, it was possible to charge any USB device with the lid closed and without connecting to a power outlet. However, at some point this has been disabled. I am currently ...
2
votes
1answer
28 views

MacBook Pro not booting

I have a mid 2010 MacBook Pro that won't boot up. Faced this problem quite a while ago, so i sent it in for repair and was told the logic board may need replacement. The store told me they tested my ...
2
votes
1answer
173 views

Is it worth upgrading to iOS 12 on an iPhone 5s

According to the WWDC 2018 Apple Keynote, iOS 12 will bring speed improvements with respect to its predecessors. However, I was wondering whether it is worthy to upgrade an iPhone 5s to iOS 12? In ...
1
vote
1answer
53 views

Closed MacBook Pro keeps turning external display on/off [duplicate]

I hooked up my old 2012 retina MacBook Pro to an external 4k monitor via HDMI. It works fine while the lid is open, but as soon as I close it, various issues occur. Monitor won't work or receive ...
1
vote
0answers
23 views

Battery life of a new-ish battery seems quite low

I have bought a used MacBook Pro from 2011 with a Core i5 (2.3 GHz) and 8 GB RAM. According to the previous owner the battery has been replaced late 2017 and according to macOS it only has as much as ...
6
votes
1answer
266 views

MacBook: woke up to an empty battery, how to get battery history?

On Sunday I purchased a brand new MacBook Pro 13" w/TouchBar. I used it a little last night and put it in my backpack with 75% battery life. I shut the lid and assumed the MacBook was sleeping when I ...
1
vote
2answers
54 views

macbook pro 2017 battery drains even in charge

I have the strangest problem ever my mac drains even if it's charging. I have attached a picture to let you understand: as you can see the battery level decreases even if it is plugged in. I am not ...
1
vote
1answer
147 views

Can I safely charge a Galaxy S9 with a USB-C MacBook Pro charger?

I have a Galaxy S9+ (with "fast charging"), which requires a USB-C charger. I also have a MacBook Pro with a USB-C charger. I am curious whether I can (safely) charge my Galaxy S9+ with my MacBook ...
2
votes
2answers
52 views

MacBook air battery has stopped charging

I need help. I have a MacBook Air. I have a new battery. It has only 21 cycles in it. Out of nowhere it stopped charging. I checked my battery status and it showed as NOT CHARGING. (More specifically ...
0
votes
0answers
18 views

iPhone battery replacement program confusion

I recently bought a used, unlocked iPhone SE from a website and I need to get the battery replaced. I live in Canada. The problem is, when I try to sign up for a Genius Bar appointment the Apple ...
2
votes
1answer
37 views

Why my Mac book pro shows status 'Battery is not Charging'? [duplicate]

I have a MacBook Pro early 2015.Recently I am facing an issue with the battery. It's not charging. The MacBook works fine when connected to charger, but it turns off when the charger is removed. I ...
0
votes
1answer
36 views

MacBook Pro with shot battery, possible to prevent CPU throttling?

I have a late-2013 MacBook Pro 15" which still has the original battery. It's at 1,144 charging cycles, and a few days ago the battery health was at about 50%, though since then it plunged to 4%. The ...
1
vote
1answer
48 views

iPad won’t charge

the iPad Pro i bought last year has suddenly stopped responding to all the 4 apple charging cables i own. this is weird because my old iPad Air is charging just fine with each. i was suspecting it was ...
0
votes
1answer
23 views

Sensitivity to gross noise on battery charging lines of Lightning connector

Long ago, I docked my iPod Touch with 30-pin connector onto a cheap ghetto blaster. I cranked the volume over an extended period. Shortly thereafter, the battery of the iPod Touch could not retain a ...
0
votes
1answer
103 views

Power Chime Sounding at odd times 2018 MBP

I recently bought a 15-inch 2018 i9 MacBook Pro. After a few days, I realized that whenever I close my laptop lid for the night, it keeps on periodically making the battery chiming noise every 7 ...
1
vote
1answer
23 views

Is it possible to stop the execution of a script temporarily on macOS? [closed]

I have a Python script that learns a Deep Learning model. It takes so much time to execute (usually more than 6 hours). Now, the problem is it is MacBook Pro and I frequently go out with it, and ...
1
vote
2answers
38 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
30 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
101 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
28 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
50 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
9 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
39 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
895 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
45 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
2answers
221 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
9 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
183 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
31 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
34 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
31 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 or even not using at all, its battery is often discharging (at 20-2000mA) and when it charges the speed is very low (only 300-500mA) ...
2
votes
2answers
103 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
187 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
29 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
92 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
182 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
88 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
72 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
24 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
594 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
27 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
453 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 ...