Questions tagged [charging]

Concerning hardware issue with recharging a battery

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69
votes
10answers
33k views

What are the best practices for battery longevity?

How do you maximize the cycle count of your battery? There seems to be a debate between: Leave plugged in 24/7 but do a full cycle once a month Charge to ~100%, drain to ~10%, repeat. NOTE: Taking ...
68
votes
10answers
151k views

Can I use 45/60/85W MacBook chargers interchangeably?

I have a 13" Macbook Pro that came with a 60W power adapter and a 15" Macbook Pro that came with a 85W power adapter. Can I use either adapter with either laptop? There seems to be disagreement in the ...
31
votes
1answer
10k views

Is using both wireless/wired charging simultaneously for an iPhone faster?

The other day my younger sister had her iPhone plugged in via Lightning cable to the wall and she then put the plugged in phone on a wireless charging dock. She swears it makes the phone charge ...
29
votes
5answers
63k views

Is it OK to charge my iPhone with my iPad charger?

I have an iPhone 4 and an iPad. Since the iPad really charges best off the wall charger I keep it plugged in, but I usually just charge the iPhone off the computer. Although frequently if the iPad ...
24
votes
8answers
75k views

iPhone 7 won't charge from my MacBook Pro [duplicate]

My iPhone 7 which I recently bought doesn't charge with my MacBook Pro Retina 2015. It always shows for one second that it recharges but then something like lost connection and then again. and goes on ...
23
votes
7answers
106k views

If I leave my chargers plugged into the wall socket at all times, do they consume energy or present a safety risk?

This is something I always wondered about: when I leave my charger plugged on the wall socket but not charging anything, is it still consuming energy? Some notebook chargers have a led that is ...
22
votes
6answers
24k views

How to disable battery charging?

From the pmset man page: POWER SOURCE ARGUMENTS -g with a 'batt' or 'ps' argument will show the state of all attached power sources. […] Certain Apple battery calibration tools may ...
20
votes
4answers
5k views

When you charge your MacBook, does it matter which thing you plug in first?

Should you connect the power cord to your notebook and then plug the power cord into the socket, or should you plug in the socket and then the notebook? Are there any recommendations from Apple? ...
20
votes
7answers
29k views

iPad displays “Not Charging” when plugged into USB ports. What can I do?

When I plug my iPad into my computer's USB ports, the iPad battery area displays "Not Charging". I understand the iPad requires more wattage to charge compared to an iPhone or iPod, as evidenced by ...
20
votes
12answers
140k views

Can I use my iPhone charger for charging other USB based devices?

Is it OK to use my iPhone charger for charging other USB powered devices like the Kindle or a digital camera (with a rechargeable battery)? Can it cause any damage to the charger or to the device ...
18
votes
5answers
21k views

Is the Macbook 12 inch's USB-C charger interchangeable with other USB-C chargers or devices?

If there is only the Macbook 12 inch USB-C charger nearby, can it be used to charge other USB-C devices, such as any Android phones that also use USB-C? (will it "too powerful" and damage other ...
17
votes
4answers
10k views

What's the point of the 60W Apple MagSafe replacement charger?

One of the cable tabs on my MagSafe charger for my MacBook came undone, so I took this as a sign to retire the charger to home use and to purchase another for travel. When I went to my local Best Buy, ...
16
votes
3answers
16k views

What are the consequences of using a low-wattage USB-C power supply with a MacBook Pro?

This question pertains to USB-C not MagSafe. MagSafe negotiates available power with the Dallas 1-wire protocol. USB Power Delivery (PD) is an unrelated protocol. Answers based on experience with ...
14
votes
10answers
9k views

Is this Apple charger cable genuine?

I recently bought online a charging cable for my iPhone. In the description of the item, the seller wrote "Apple Brand", which is what I was trying to purchase. However, there are a couple of things ...
13
votes
5answers
5k views

Do the current Apple USB Keyboards support charging the iPad?

As the new owner of an iPad, it was disappointing, but not surprising, to see a "not charging" in the upper right hand corner of my iPad when I connected it via USB to my Apple Keyboard from 2007. ...
12
votes
6answers
633 views

How to safely charge your apple device at a charging station?

Recently there has been alot of news about how free charging stations could be reading data from devices that are plugged into them. The obvious solution to this issue is to place an adaptor between ...
12
votes
5answers
137k views

How many amps should an iPhone 5s car charger output?

When looking on Amazon for a car charger I noticed that different items have different amp values, 2.1 and 3.1 being the most frequent. What is the recommended value? Does it even matter? Is there ...
12
votes
5answers
246k views

Why do iOS devices take such a long time to turn back on?

Often I will realise my iPhone or iPad is about to run out of battery, run around the house looking for a charging cable and plug, and get back just in time to see the screen go black and the little ...
12
votes
2answers
7k views

Should I use the adapter or the battery?

I want to know when my MBP's battery was fully charged it's better to unplug my adapter and use my battery power or still let use adapter power? I somewhere read that when MBP's battery was fully ...
12
votes
1answer
3k views

Is there a solar panel to charge a MacBook Pro 2016?

I want to buy a MacBook Pro 2016, probably the 15" model. Since I travel around on my bicycle a lot, I'd find it really nice if I could charge it with a solar panel. Does anyone know how much Output ...
11
votes
4answers
23k views

Charging iPhone 4S from closed MacBook Air

Should an iPhone recharge when plugged in to a MacBook Air which itself is plugged into its wall charger? My MacBook Air was closed and plugged into its wall charger. The green light on the power ...
10
votes
2answers
960 views

Why can my Mac charge my iPad but other computers can't?

What do Macs do differently so its USB ports can charge my iPad, but if I plug into a USB port on my PC I get the "not charging" message?
10
votes
5answers
8k views

Can I charge a 2017 MacBook Pro with a third-party USB C power adaptor?

I've got a 2017 MacBook Pro which comes stock with an 87W USB C Power Adapter. I want to purchase an additional power adapter, but I don't require an official Apple one. I notice that Anker make one ...
10
votes
2answers
156k views

Is it safe to use my US iPhone/iPad charger with a simple European plug adapter?

I'm using the US wall adapter that came with my iPhone to charge it: When I travel to Europe, is it safe to use this with a simple US-European adapter, or do I need a transformer or some other device ...
10
votes
6answers
9k views

Thunderbolt display not charging MBP battery

I have a mid-2012 Retina MacBook Pro and two Thunderbolt displays purchased in mid-2014. The MBP sits plugged into one of the Thunderbolt displays almost all the time, unless I'm using it away from my ...
9
votes
2answers
4k views

How to charge MacBook Pro quickly from an iMac?

I am charging a MacBook Pro using a Thunderbolt 3 cable plugged into an iMac. This charging speed is exceptionally slow. The image shows 5+ hours to charge the laptop. I am using: 2018 MacBook Pro ...
9
votes
5answers
47k views

Which Macbook Pro USB port should I use to charge an iPad?

I heard that one of the two USB ports provides more power, decreasing the charging time. Still, I forgot which one is the powerful one. I would be nice to give a hint that's easy to rememeber ;) It ...
9
votes
2answers
16k views

How to reset a magsafe charger that doesn't charge macbook pro's battery?

I have a Magsafe charger (original) that doesn't charge my MacBook Pro's battery. When it is connected, it will allow the machine to switch to power adapter mode (meaning no battery consumption) but ...
9
votes
6answers
68k views

iPhone 5 does not work while charging

My iPhone 5 does not respond to swipes and gestures on the touch screen, while charging. The buttons work fine. What is this issue, I have on 2 iPhone 5 devices - so not only one. Rebooting does not ...
9
votes
6answers
11k views

Can I use an iPad charger with my iPhone 4?

Is there any harm in using the iPad charger for iPhone 4?
9
votes
4answers
12k views

Can one MacBook charge another over USB-C?

When two 2016 MacBook Pros are connected over USB-C, can they transmit power? Could an adapter look like a phone from one side but like a charger from the other, so that it would convince one MacBook ...
9
votes
4answers
40k views

Can I (or should I) use a MacBook charger on my iPhone?

I recently got a MacBook with the USB-C charger. It comes with a 29-watt power brick, and I was wondering if I should use this to charge my iPhone. I've heard that the iPad power brick (I think 10 ...
9
votes
1answer
16k views

MacBook Pro USB ports not working properly

At work, I usually use my left USB port to charge my iPhone, while the right port connects to a hub on my monitor, providing Ethernet, external keyboard and sometimes another iOS device. I also have ...
9
votes
3answers
8k views

How to make iPhone charge over USB cable when locked?

iPhone 6s, running iOS 12.0.1 Plugging the phone into a computer to charge produces an "Unlock iPhone to use accessories" message and the phone refuses to charge. How do I fix this nonsensical ...
8
votes
2answers
21k views

Only one USB-C port will charge my MacBook Pro?

I've had my MacBook Pro (13-inch, Late 2016, Two Thunderbolt 3 ports) for over a year and I've never had any problems with charging until now. I was always able to use both USB-C ports for charging, ...
8
votes
4answers
7k views

Macbook Pro Retina – “Battery Is Not Charging”

My Retina MacBook Pro is currently on 4% battery power, 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 ...
8
votes
5answers
62k views

Is there an iOS app that measures/reports the battery charging current?

I suspect my fake lightening cable charge my iPhone 5 much slower than my original lightening cable on the same charger. Is there an app that will display the current battery draw/charging current and ...
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 ...
7
votes
4answers
30k views

Why does my MacBook Pro say “Not charging” when plugged in?

I have the latest 2011 Macbook Pro. Sometimes I notice that even when I'm plugged in, the battery status says "Not charging" even when I unplug it and the battery is at 35%. This mainly seems to ...
7
votes
9answers
178k views

Can using a non Apple USB cable damage an iPhone?

If I use a generic/aftermarket iPhone USB cable instead of the official Apple product, can it damage the iPhone? A vendor at the mall said that high quality iPhone USB cables have a chip that ...
7
votes
4answers
5k views

Using an iPod charging cable to charge an iPad

I lost the original plug-in charger that came with my iPad. I have tried using my iPod cable to charge my iPad (plugged into the USB port of my Windows laptop) but the iPad will not charge (or at ...
7
votes
2answers
66k views

Will it damage my iPad if I use an iPhone charger to charge it?

I have the opposite issue of this question: Is it OK to charge my iPhone with my iPad charger? I want to use my iPhone charger (plugged directly into main electricity) to charge my iPad. I've noticed ...
7
votes
3answers
12k views

Suppress vibrate when docked?

When I dock my iPhone in the charger (desk stand), it briefly chimes to say it's charging. If it's on silent, then it vibrates instead of chiming. When I go to bed and put the phone in the bedside ...
7
votes
1answer
855 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 ...
7
votes
1answer
4k views

What's the best way to prolong the lifespan of a Macbook Pro battery? [duplicate]

I have two Mac book Pros: A 2013 Unibody retina that I use every day An older 2006 model with removable battery that I use a couple of times a month (when not in use, it's not connected to the AC. I ...
6
votes
9answers
76k views

Can I use my iPhone charger with my iPad?

My iPad 1 charger was burned because of high voltage, so it stopped working. Currently, I am using an iPhone 3GS mini charger. It charges the iPad but only very slowly when the iPad is on but the ...
6
votes
3answers
2k views

iPad being using in wall mount battery swollen

Ive got an install with an iPad mini 4 installed in a wall mount running locked to a single app. The wall mount has a POE to USB adaptor built in. The iPad is powered by a TP link POE adaptor : https:...
6
votes
3answers
3k views

Fundamental Difference Between Charging An iPhone At The Mains & Via USB Cable Linked To An iMac?

If you are working at an iMac and there is also a mains socket close at hand, is there any difference (in any respect) to charging an iPhone via USB cable linked to the Mac or is it more advisable to ...
6
votes
3answers
32k views

Safe to charge macbook with USB Type A to USB Type C cable?

If I take use a USB Type A to USB Type C cable, (like this) and plug it into a wall converter similar to the ones that come with iPhone charger (basically just a little box that plugs into a wall and ...
6
votes
5answers
61k views

Is it possible to charge my MacBook Air from a powerbank?

I recently bought a powerbank that has two USB outlets. It's great for charging my phone and iPad. Is it possible to charge my MacBook Air from the powerbank? If it's not possible to do this "out of ...