Sometimes my power supply gets hot

I have the newest MacBook Pro 15 with the 2.5 Ghz Intel i7. I've noticed that sometimes my power transformer gets pretty when charging the laptop. Other times it doesn't get warm at all. Why would this happen? Is there something wrong with it?

Hi!
I have the exact same notebook as you.
I'm not sure that this is true, but I think that this depends on the difference in charge.
For example-- as charge from (100% - 40% = 60%) requires more time, it may heat up.
whereas, a charge up 10% won't heat up as much.
Matt

Similar Messages

45w power supply getting hot

When I plug my 45w power supply into the extended cable it brick gets incredibly hot. When I plug it directly into the wall with the 2 prong plug it does not get as hot.
Any suggestions as to what is going on?

It will also depends on WHEN you are checking the brick. If you check the brick after say, you have been watching Netflix movies FULL screen for the last 2 hours, it will likely be more hot than it would if you were just surfing around the internet. Also, it would be warmer if it was currently charging the battery as opposed to JUST powering the computer. It shouldnt matter if it is the long cable or the direct plug. Last, define HOT? What you consider HOT may not be hot at all to me. It is a completely subjective thing. Obviously if it is so hot that you cannot touch it, that is a different story.

Power supply get very hot!

I just bought a Pavilion dv6-6c35dx laptop and have noticed that the power supply gets really really hot, to the point that it scares me and I disconnect the laptop. Does anyone has the same problem?

Same problem here on my dv6-6c35dx.
I didn't know about the power cord recall, and I bought a new ac adapter, power cord and replaced the battery. No change, the adapter gets really hot, too hot using the 2 second rule! Experienced chefs use it to determine if a grill is hot enough by touching it for no more than 2 seconds.
I'm now putting it on a ceramic plate to make sure it doesn't smoke something when its charging. I hope HP knows this is a problem. Maybe the battery charging rate can be slowed and this may help.

Battery Life is short and when i do charge the power supply gets to hot to touch?

Hi! I'm not sure whats Wrong with my MacBook Pro 15" - Mid 2010, i7, 4gb RAM, 512mb Graphics.
When i charge my MB it has a really short life (50 - 60 min) without using high demanding programs. I've had a look in system information and i found this; Full Charge Capacity (mAh): 4858
im not sure what it should be but does it sound like a healthy battery?
My second question, the power supply is hot to touch is this a contributing factor? I took it in to apple and they suggested to buy a new charger, so £65 later and i still have the overheating of the power supply and the short battery life problems, HELP!
Matt

Mattwilkinson21 wrote:
the power supply is hot to touch
That is not a good sign. Check the connection on the MBP to see if there is any foreign matter or discoloration evident.
Open System Information>Power and post this from your MBP:
(make certain that the charger is attached)
Also run an Apple Hardware Test. You may use the appropriate original install disk for this which has the AHT instructions printed on it.
Note that an error free AHT is not definitive.
Ciao.

Satellite P55W-B5318 Power Supply Very Hot

I purchased a Satellite P55W-B5318 yesterday. While charging the laptop the power brick got very hot, too hot to handle for more than a few seconds. The model number of the power supply is PA5177U-1ACA. I read Toshiba has replaced some power supplies which ran hot. Should I request a new power supply?

You should call Tech Support at 1-800-457-7777 immediately. It should only get warm to the touch. But the best thing to do is take it back where you bought it for an exchange.
C.B.
Toshiba Sat. C75D-B7260 Win 8.1 64 Bit--Toshiba Sat. L775D-S7132 Win 7 HP SP1 64 Bit and Win 10 PRO Technical Preview--Toshiba Sat. L305-S5921 Win Vista SP2 32 Bit

Power Supply TOO HOT

Can anyone tell me the acceptable range for an operating temp in a 450 watt power supply? I have an Antec 450W and it runs around 56 degrees celcius. Speed fan tells me it's too hot. Is there anyway I can cool it down? Thanks.

Wow !
i can't believe that it is hotter from my cpu while o/c'ing to 2500Mhz
My 300w elanvital PSU which is overloaded with my system , is working at 40-42C.
i thought that it must be around 44-46 C for 450W power supply ..........
Do you think is there any thing getting too much power from your PSU..
HSF , LED etc. ? or is there wire shortcut making PSU hot ?

Power supply really hot!

I know there are a couple of bad caps inside my G5 PS, but I am waiting for the new caps to come from Digikey which should be here soon.
When I was testing it out I had the iMac G5 open and laying flat on a soft cloth towel.
Now everything inside was warm to the touch nothing really jumping out at me as being too hot. That is until I touched the power supply. No I didn't get burned as my reflexes are still pretty good.
Now my question is, even with the caps after they are replaced, should the power supply be this hot or will it cool down to a safe handling temperature?
I am thinking about doing the mod with adding the fan(s) (2 - 80mm or 1- 120mm) for the CPU and possibly adding a new mod to put 3-4 small 30mm to 40mm fans on the back of the iMac near the power supply at the bottom of the iMac G5 to draw the heat out. I do not want to push air in as that would just heat up the inside of the iMac. So the way the PS is made, it would pull air from the bottom and exhaust it out the back.
Let me know about the above question in blue.
Message was edited by: cat3rn

The power adapter has several internal protective circuits, including over-temperature. If the temperature gets too high, the power adapter will shut itself off. When charging, the power adapter should be on a hard, flat surface to assure proper air flow.

HP dv6500z Notebook: Power brick gets hot, HD area gets warm.

Hi:
I have an HP dv6500z notebook.
Is it normal for the power brick (suppy) to get hot ?
By hot, I mean that it is warmer than "warm".
You wouldn't want to keep you hand/fingers on it for a long time.
Similary for the Hard-Drive area and other area on the front of the notebook:
i.e., the areas to the left and right of the trackpad.
These two areas were warmer when I had the notebook sitting on top
of one of these Targus "cooler " stands that you place the notbook on:
it has two fans built into it to pull heat away from the notebook.
Thank you
DaleBr

No it is probably the biggest online marketplace for car parts and computer parts and other stuff. Think of it as a huge swapmeet with some retail stores mixed in...virtual of course.

TS3274 New IPAD Power plug gets hot

I have a one week old new IPAD.
The power plug that comes with the IPAD gets very hot upon charging (the bulk portion that gets into wall socket). I had IPAD2 and never faced this issue?
Should I take it to an Apple Shop for replacement?

Mine gets warmer than the power adapter on my original iPad, but .... It does not get "Very Hot". I would take it back to Apple and show them, and ask for a replacement, it should not get that hot.

Power plug gets hot!!

The power plug on my macbook gets riduculously hot when i plug it in to a socket - is this normal? Im talking about teh plug end of the connector not the magsafe end.
Thanks

It shouldn't be that hot, are you plug it directly to power outlet or using extension power outlet / cable.
Plug somewhere else and see how it is going.
It could be that power outlet or extension is taking a lot of usage more than it can deliver from other device that attached to it.
Also clean up the power plug head on the macbook adapter.
Good Luck.

Apple ADC to DVI Adapter -- Power Brick gets HOT

Hello all,
I just purchased an Apple ADC to DVI adapter to connect my 23" Cinema Display to my new Mac Pro. It works perfectly, but I've noticed that the white, square power brick is generating quite a bit of heat. It feels sort of OK (within tolerance) at the edges but toward the middle it's noticeably hot. Not hot enough to burn my hands, or cook an egg, but definitely toasty warm. Is this normal? Or does it sound like I have a defective one?
Alan

If by "on" you mean the adapter is connected to your display and plugged in to an AC outlet, and you have an image on your display coming from your computer, then it's not dead.

"Wall wart" on power supply too hot to touch

I'm wondering if this is a normal condition or something to be worried about.

You should allow good air circulation to prolong its lifespan, and I don't think keeping it under your blankets is a great idea
I have worked with electrical engineers, who have introduced me to the concept of a .6 (60%) safety factor. This means that in any design, you include tolerances more than 60% above what is required for safety. I have no double Apple has done this too. This means things like if your device will spontaneously combust at 500 degrees, make it break at 250 degrees, and the like.
The only time you need to be really worried is with goods that are counterfeit (like some Apple batteries and power supplies from eBay). The rest of the time, you're likely to find very good safety factors in them

Why does my power supply converter get so hot

My power supply get very hot when it is plugged into an outlet. Will this hurt my Mac?

http://www.bresink.com/osx/TemperatureMonitor.html
http://www.macupdate.com/app/mac/20364/istat-pro

Dangerously hot power supply burnt my hand and Apple don't care!

I recently purchased a MacBook Pro. The 85W Mag Safe Power Adaptor got so hot yesterday that it burnt my hand when I went to pick it up! This is NOT good. I am VERY concerned that this product is dangerous and could catch fire or, worse, seriously hurt someone. I found my two year old putting her hand on it just before I picked it up which would have meant a trip to hospital!!
I couldn't get hold of anyone at Apple. I emailed my account manager in Ireland but got a message saying he was away.
So I sent an email to Apple's customer service email asking if they could you tell me what temperature is acceptable and whether or not they have experienced similar problems with other customers.
Unbelievably I got this response!!! Not exactly what I would call responsible.
Dear Perry,
Thank you for contacting the Apple Online Store.
I apologise for you recent experience with your MacBook Pro.
After carefully reviewing your message, Apple has determined that the nature of your query falls outside the type of support provided via e-mail by the Apple Store Online.
We do however have a dedicated support team of Apple Advisors who are trained to help with any technical queries that you may have. I regret that this team do not have a public e-mail address where I may forward your query.
Please see below for their contact details:
Telephone:
Apple Advisors are available at the following Lo Call Number Tel: 0844 209 0611. Please have the product and serial number to hand when contacting this team.
Online:
Repairs, manuals , warranty queries and much more information is available to you for all Apple Products at the following website: www.apple.com/uk/support
Retail:
When you have questions or need hands-on technical support for your Mac, iPod, Apple TV or iPhone, you can get friendly, expert advice at the Genius Bar in any Apple Retail Store. Please note that Appointments must be booked in advance. For more information please visit the following website: http://www.apple.com/uk/retail/geniusbar/,
Service Provider:
For a full list of these service providers please visit the following website: http://www.apple.com/uk/buy/locator/
Finally should you wish to keep this information to hand, you can find the full list of support services available to you at the following link: http://www.apple.com/uk/support/contact/
Kind regards,
Kim S.
The Apple Store
Apple Operations Europe
Directors: Cathy Kearney (Irish), Gary Wipfler, Peter Oppenheimer & Timothy Cook (U.S.A)

The OP is talking about the power adapter getting hot not his MacBook Pro.
The design of the MacBook Pro allows for the main unit to dissipate heat from the CPU (the aluminium unibody is essentially a giant heat sink). Under CPU intensive operation the body of your Mac will get warm to hot, but not to the point of causing bodily harm. If it does, contact Apple ASAP.
If the Mac is properly ventilated when in use and is placed on a desk / table/ lap table thingy or similar, you shouldn't feel the heat being passed through the main body of your Mac.
Having had a previous model of 17" MBP, I found it too big to use on my lap so bought a laptop stand and have subsequently used all my notebooks on the stand and never even use my latest 13" MBP on my lap.

Is power supply 3k-X 715W AC hot swappable on Cisco 3750X?

Is power supply 3k-X 715W AC hot swappable on Cisco 3750X?
Thanks
Diego

Sorry, found the answer http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750x_3560x/hardware/installation/guide/3750x_3560x_HIG/HIGFRU.html
The power supply is hot-swappable. In some configurations, such as full PoE+ or power sharing mode, removing a power supply causes powered devices to shut down until the power budget matches the input power of a single power supply. To minimize network interruption, hot swap the power supply under these circumstances:
–The switch is connected to an XPS 2200 and sufficient power is available.
–The switch is in StackPower mode and sufficient power is available (Catalyst 3750-X only).
–The switch is powered by other switches in a power stack, and no active backup is in progress.
For the switch commands for displaying the available power budget, see the Catalyst 3750-X and 3560-X Software Configuration Guide.

Sometimes my power supply gets hot

Similar Messages

Maybe you are looking for