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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.

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Can I use a Qi Charging Stand with an 80% Charge Limit for iPhone to run on external power source limiting charging cycles?

I've recently set an 80% charge limit on my iPhone to help manage battery health. I'm considering leaving my phone on a Qi charging stand throughout the day. Would this approach be similarly effective ...
Ev0oD's user avatar
  • 215
2 votes
1 answer
847 views

After two years in storage backup iPhone does not start

Two years ago I had to buy a new iPhone and since I am in area where iPhones are very expensive and hard to get I actually bought two devices -- iPhone Mini 13. Both of them were configured in the ...
zantafio's user avatar
  • 257
1 vote
0 answers
47 views

Detecting which process/program is running and consuming energy while Mac is sleep

I am recently having an issue with my MacBook M1 Max which uses a relatively high energy while in sleep mode. I disabled power nap (Wake for network access), yet it uses almost high CPU time and ...
hasan's user avatar
  • 111
6 votes
4 answers
1k views

What is a safe percentage for battery Maximum Capacity in an iPhone?

My battery maximum capacity is at 84%. I was wondering how low the maximum capacity could go could go before I start seeing problems of my phone shutting down. It's an iPhone XS. Currently, at my ...
pmagunia's user avatar
  • 1,131
4 votes
0 answers
63 views

Can I block programs from preventing sleep?

Ever since I "upgraded" to Sonoma, I've had occasional, severe battery drain when my MacBook should be sleeping or hibernating. I'm now running the latest, Sonoma 14.4.1. My battery drains ...
Jim L.'s user avatar
  • 540
3 votes
2 answers
87 views

Brand new iPad (10th generation) apparently has a 10 year old battery? Is this even possible?

I just got this iPad (10th generation) 3 days ago from a certified apple reseller and when I plugged it into my Mac to check the battery with an app I found out that apparently it was manufactured in ...
ann's user avatar
  • 33
-1 votes
1 answer
54 views

What web site can I visit from Safari on my iPhone that will drain the battery the fastest?

Sometimes I need to drain the battery to zero. I can search for apps that are designed to do this, but I'd like to do it with a web site instead. What sites are designed to do this? Barring that, what ...
All The Rage's user avatar
0 votes
1 answer
41 views

Apple watch SE battery sharp decline. What can I do to hold over temporarily?

I have an apple watch SE that I've owned for three and a half years. I've started to notice that the battery is starting to run down a lot faster. I looked in settings and as it stands the battery ...
Deko Revinio's user avatar
1 vote
1 answer
36 views

Mac is draining battery way too quickly, especially when it's off

This morning, my mac was at 90-ish% battery, but after closing it for about an hour, it drained all the way to 30%. My mac battery isn't the greatest, but it drains slower when it's on than when it's ...
eve kna's user avatar
  • 11
1 vote
0 answers
27 views

How to turn on MacBook automatically when it receives power again (and battery was drained)?

I would like to use my old MacBook Air (2015) as a server-like machine so that I can connect remotely to it via SSH. I managed to do this, however, I am looking forward how to be able to power it on ...
Ionică Bizău's user avatar
1 vote
0 answers
180 views

Macbook Air battery drain while sleeping

With the lid closed, my Macbook Air (13” 2020 Intel (MacBookAir 9,1), macOS 14.3.1) drains battery, often at a rate of more than 10 percentage points per 24 hours. I have tried the usual voodoo of ...
Ture Pålsson's user avatar
3 votes
1 answer
381 views

For the last day my M1 MBA always has a battery warning icon ⚠️, only on the lockscreen

I bought my M1 MacBook Air a few months after they came out, so it's almost 3 years old. It gets lots of use. I don't leave it plugged into AC all the time Just yesterday I noticed the ⚠️ graphic ...
hippietrail's user avatar
  • 1,354
0 votes
1 answer
42 views

How to safely run my MacBook Pro (2014) as a server without damaging the battery

I've been using my MacBook Pro 2014 as a Plex Server for a few years (sometime not switched off), but charger was always plugged in. I think that the "always plugged in" killed the battery ...
Thomas's user avatar
  • 103
1 vote
0 answers
51 views

Can macOS choose the "highest" wattage power source available?

I have two monitors (Gigabyte M27Q) that I connect to my MacBook Pro 16" (2019, Intel) via USB-C. Both monitors are capable of power delivery, but it's super low wattage (~10-15W) and I can't ...
Brian's user avatar
  • 111
0 votes
1 answer
59 views

Macbook Air 2011: Battery issue, not charging, fan going at 100%

A year ago I bought a MacBook Air 2011 (i7, 4GB RAM) running High Sierra for a few bucks. There have been occasional hiccups, but overall the machine still works surprisingly well. The previous owner ...
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0 votes
0 answers
30 views

Battery started to draing too quickly after battery health got down to 99%

I have an MBP with M2 Pro chip almost a year old. I tried to save my battery health as much as I could. Lately I was experiencing my battery draining much faster than before so I checked my battery ...
Arda Oğul Üçpınar's user avatar
8 votes
1 answer
2k views

How can I slow charge my Mac Book Pro?

I use a Mac Book Pro. I want to prolong the life of the battery as long as I could. One of the thing that I do is to limit my Battery charge to 70% only. (Using Aldente) Another thing that I want to ...
frewper's user avatar
  • 191
1 vote
2 answers
52 views

iMac (late 2013) w/ High Sierra is very slow; lots of spinning wheels

The last couple weeks, I've had infinite waits in many applications. Logging in after restart took a few minutes, and the password space even disappeared for awhile. Do these iMacs have batteries? ...
valence4x's user avatar
1 vote
1 answer
254 views

MacBook Pro runs out of battery and feels warm when left unplugged and in sleep mode overnight

I have tried turning off Screen Time and it still drains all the way to 0%. Leaving it plugged in is not a solution -- That will still result in my computer consuming energy all night. I want to get ...
Lauren S's user avatar
  • 111
2 votes
1 answer
81 views

How to debug unexplained battery usage?

I have an M1 Air (Sonoma 14.1.2), which most of the time has a reasonable battery life. However, sometimes it inexplicably drains battery, as shown on the second Friday here where ~27% of the battery ...
Chris's user avatar
  • 256
0 votes
0 answers
26 views

MacBook Pro having issues with the battery and the trackpad

So my mom has a MacBook Pro A1502 and the trackpad was having some issues so I took out the battery to see if it was something with the cable. When I powered back on the computer the trackpad was ...
Hogarth's user avatar
  • 23
0 votes
1 answer
161 views

How can I revert to the old optimized battery charging regime on Sonoma?

I keep my M1 Macbook laptop plugged in most of the time, and have had it set to optimized battery charging for a long time. I've noticed two versions of the optimized battery charging regime. Regime 1:...
Vipul Naik's user avatar
0 votes
0 answers
32 views

charging issue iPhone 12 pro refurbished

I recently purchased a refurbished iPhone 12 Pro, but I've noticed an issue with the battery charging. When using an official iPhone charger, there's no problem, and the phone charges as it should. ...
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0 votes
0 answers
49 views

How is my second-hand Mac having only 49 cycles of battery while having 611 power on hours?

I just recently bought a Macboook Pro Max M2 with 64GB, 12 CPU cores, 38 GPU cores. The previous owner advertised the battery cycles count to be 36, which kinda shocked me and I bought it right away ...
Martin.'s user avatar
  • 141
0 votes
0 answers
30 views

Charger block with USBC on both ends not charging

I have an MacBook Pro (16-inch, 2021) M1. It is supposed to be chargable with USBC. The power block that comes with it has a cable with megsafe on one side for the macbook and USBC on the other side ...
user1721135's user avatar
1 vote
1 answer
1k views

"the battery's capacity is significantly reduced" But there's only 25% in reduction and only 600 cycles. Is this a bug?

The original battery hit 2200 cycles. Roughly went from 6 hours to 2-3 hours of battery life. Then I replaced it myself with another original which was sitting somewhere for years. It started with 95-...
user3722246's user avatar
3 votes
1 answer
76 views

Is there a way to charge a USB-C powerbank from a Mac Book Pro?

I have a USB-C powerbank. That is, a battery pack with a USB-C cable that can be used for charging the powerbank, or for charging other USB-C devices from the powerbank. If I plug the powerbank into ...
Laurence Gonsalves's user avatar
1 vote
2 answers
465 views

Battery Drain during sleep (Wake reason: EC.ACDetach (Maintenance))

MBP 13" 2020 (intel) macOS 11.7.10 My computer's battery drains from 100% to 0% over an 8-hour sleep about once a week. The wake reason is frequent EC.ACDetach (Maintenance); see the log bellow: ...
isend's user avatar
  • 191
0 votes
1 answer
631 views

After Sonoma 14.2.1 update, Macbook Pro 2018 doesn't sleep while usb leads attached

My macbook pro isn't sleeping properly when I have usb devices attached. I have a usb c powered monitor, mains powered monitor and a usb hub (currently just a mouse is attached and a printer which is ...
atreeon's user avatar
  • 518
0 votes
1 answer
43 views

Battery voltage logger? Random shutdowns on Macbook Air

Is there any direct way (command line) someone could share, to recursively log into a file the voltage level of the battery? I just bought a new battery for my loyal macbook air (2012). After a few ...
Domingo's user avatar
  • 41
0 votes
1 answer
49 views

Macbook Pro (2021) with Apple Care and multiple repair reasons. How does the repair work?

I have a Macbook Pro 16" from 2021 with Apple Care Plus. A few weeks ago, (sticky) liquid spilled over the keyboard. All keys still work, but some get stuck when typing. The battery only has 83% ...
Ulli's user avatar
  • 103
1 vote
1 answer
75 views

Replace original battery for MacBook Pro "Early 2011" and "Mid-2012"? [duplicate]

For the following laptops Apple MacBook Pro "Core i5" 2.3 13" Early 2011 Specs Apple MacBook Pro "Core i7" 2.9 13" Mid-2012 Specs Where is possible buy an original ...
Manuel Jordan's user avatar
0 votes
0 answers
20 views

Battery gets discharged down to 80% while the MacBook Pro is plugged in and the power adapter is the power source [duplicate]

The Optimized Battery Charging setting is turned on. When the charge is high, say, greater than 80%, at some point, the following appears under the Battery icon on the menu bar: Power Source: Power ...
darthV's user avatar
  • 165
0 votes
0 answers
33 views

Mysterious 2-Second Black Screen Every 18 Seconds Issue: MacBook Air A1932 (EMC 3184)

Problem: I am experiencing an interesting issue with a MacBook Air A1932 (EMC 3184). If the battery is depleted, I get the display to connect the charger, but if there is some charge to the battery, a ...
Rohitus's user avatar
  • 101
1 vote
1 answer
154 views

How to deal with 61W power adapter not working issue

I have apple MacBook Pro (13-inch, 2020, Two Thunderbolt 3 ports). The power adapter is not working , there is no issue with Charging pin Charging cable Can I use 140W USB-C Power adapter with this ...
King's user avatar
  • 123
-1 votes
2 answers
52 views

MacBook Pro early battery degradation

My MacBook Pro (A2251) battery is 78% max capacity after only 785 charge cycles and 3976mAh. Is this okay? I have plugged it in overnight in the first year or 2 of owning it but now I have AlDente ...
Charlie's user avatar
0 votes
1 answer
58 views

How do I find battery voltage on macOS 13 Ventura?

I tried system_profiler SPPowerDataType | grep Voltage, but it doesn't seem to have it anymore. Similarly, it is missing from System Information -> Hardware -> Power.
stands2reason's user avatar
4 votes
1 answer
1k views

Display the bluetooth headset and battery status icons in the iPhone status bar

I would like to show in the iPhone status bar the bluetooth headset and battery status icons. The icons provide an easy visual confirmation that the headset is connected/disconnected, and the visual ...
Timur Shtatland's user avatar
0 votes
0 answers
166 views

iOS 17.1.1 on iPhone SE 2nd Gen PANIC MODE PROBLEM

Could someone please interpret this panic message for me? It started to cause my iPhone to shut down a couple of weeks ago. Battery is in good condition, no water damage or big falls, no storage ...
Susanna Couch's user avatar
0 votes
0 answers
88 views

AC Charger Information paragraph has no info about serial number

Just noticed that there is no any info about the charger serial number in System Information > Power > AC Charger Information. Is it okay? AC Charger Information: Connected: Yes ID: ...
Daniel Velesevich's user avatar
1 vote
1 answer
80 views

MacBook frequently stops charging briefly when battery at 100%

Once my laptop battery reaches 100%, when unattended, every 5 to 30 minutes, the MagSafe 3 cable light briefly turns off, turns back on, the "100% Charged" message will show on the screen, ...
Erik W's user avatar
  • 151
-1 votes
1 answer
286 views

Optimized Battery Charging issue for 2023 MBP, Apple M2 Max chip

My MBP currently runs on macOS 13.6.2. I purchased the machine new about 9-10 months ago. It came with "Optimized Battery Charging" enabled (by default) - a feature I was glad to see added. ...
Seamus's user avatar
  • 4,640
0 votes
0 answers
22 views

Identifying a software issue that drains battery (after new battery install)

I've got an iPhone 12 with the latest iOS updates. After the battery was draining quite quickly at 81% health, I took the phone to an Apple certified repair shop and had a new battery installed. The ...
Kai's user avatar
  • 1
0 votes
0 answers
37 views

M1 Max MBP: Magsafe works erratically

I have a M1 Max MBP, macOS Sonoma 14.1.1. The MagSafe works erratically, that is, when I connect it to the laptop it might immediately show signs (light/sound) that the battery is charging, or it ...
user1256923's user avatar
  • 3,612
1 vote
0 answers
70 views

Do airpods case's battery drain when it's left open and airpods are in use?

I just joined this community. I hope this an appropriate question to ask here. If not, please let me know, if you know, where I should ask this. I own a set of Apple Airpods Pro (2nd Gen? is there a ...
apex2022's user avatar
  • 111
0 votes
0 answers
22 views

Weird charging pattern for 2019 MacBook Pro 16"

I noticed this weird charging behavior (using stats) when charging my Mac - charging power climbing and then dropping to ~60W over and over. Does this indicate a problem with the battery?
Vaidas Kascėnas's user avatar
0 votes
0 answers
51 views

macOS: Programmatically access the "Screen On Usage" data shown in Settings->Battery

How do I programmatically access the "Screen On Usage" data shown in Settings->Battery?
HappyFace's user avatar
  • 622
1 vote
1 answer
119 views

New market battery says No "Fully Charged"

I have a Macbook Pro Retina that I bought brand new in 2015. Its battery died and wouldn't boot. Because it's old, Apple wouldn't provide a battery in my country, so the shop bought a battery "...
gsamaras's user avatar
  • 251
0 votes
1 answer
148 views

High opendirectoryd CPU usage caused by Qustodio- Any Fix?

I have an 14" M1 Max that gets very poor battery life, which I suspect is mainly due to the installed internet filter, Qustodio, causing high CPU usage from opendirectoryd. As per activity ...
Rafael's user avatar
  • 121
0 votes
1 answer
53 views

Is the hard drive data recoverable from this MacBook with extreme battery damage?

My friend's laptop almost literally blew up while charging. There is extensive battery damage -- see attached photos below. Is it possible to recover the hard drive? And/or should they put pressure on ...
Greg Sadetsky's user avatar

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