MBP shuts down when connecting to power

Since a week or two, my MacBookPro from early 2011 shuts down when connecting the magsafe to power. Also when starting up again it will start up fine and fast from battery, but I need to hold the power button for several seconds when connected to power.
Another problem I had earlier as well is CPU (kernel task) of over 90%, which I now see clearly, only occurs when connected to power. I used to solve this problem by putting the MBP to sleep, but now, when put to sleep, it will shut down.
When on battery, I have no CPU problem and can put machine to sleep without a problem.
I recently started uploading everything to dropbox, and activate caffeine to make sure it will keep uploading. My computer will run for days on power combined with caffeine, but is as slow as **** because of a >90% CPU.
The battery has had a notification for maybe a year, that it needed service, so today I finally bought and installed a new battery, but the problem is not solved. Is this software or could it be my magsafe adapter? Thanks for you help.

It sounds like a problem with the power management inside your MBP. I suggest you call Apple to make an appointment at your local Apple store for them to check it out for you.

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I've been using my 2011 15" MBP for about a week now with no problem until today when I tried to connect it to my old 20" cinema display. I have the mini display port hooked up to the dvi adapter and a usb connection hooked up to external keyboard and mouse. Everything works just fine if I keep the lid up on the MBP, but if I shut the lid, the MBP shuts down. Down, not that the big screen goes black & then comes on again. It turns itself off.
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My MBP almost instantly shuts down when the power cord is unplugged. The battery has been fully charged; I've tried restarting the laptop, holding down the power button for 10 seconds, and resetting the SMC.
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I'm having the very same problem, and unless I find something on the discussions, I'm taking it into the Apple store as soon as possible.
This is my third battery, and each one seems to have a lifetime of about three months. This situation is different, though. The first one was bulging and shutting down when the battery was below 25% charged and the max battery capacity was dropping sharply. The second one was part of the exchange program, but I noticed it was starting to bulge and the max capacity was starting to drop (below ~60%).
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MBP Shuts down when case pressed

My 2007 2.4GHz 17" MBP has started shutting down when any pressure is put on the RAM cover. Does not matter if the battery is installed or not. Any ideas on a fix?

Does it do this when on the A/C adapter or just when running on battery. If the latter, remove the battery and inspect it for any swelling, deformation of leakage. If it's leaking, the goop will look like blue-gray papier máche at the joint between the metal and plastic parts of the battery case.
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Hello,
I have a 17" MBP 2.33GHz Intel Core 2 Duo.
Recently (in the last 3-4 days) it has decided to shut down completely when the battery charge falls to around 30%. Prior to these symptoms appearing, it behaved normally with the 'low battery warning' appearing at about 5% and then going to sleep mode as opposed to shutting down.
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glavender wrote:
...Hopefully Apple will do something about this. It doesn't seem right that the battery would fail this early! Especially after spending so much on a computer!
Umm... of course Apple will do something. I do not understand why you felt you had to add that to your reply. Allow me to explain:
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I have just now reset the PRAM and am running on battery power. I'll know in the next couple of hours whether that has had any effect or not.
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MBP shuts down when touched if not on a flat surface?

Good afternoon,
After recently replacing my damaged upper case/keyboard on my unibody macbook pro, now if I'm using it on my lap, or in bed, or basically anywhere other than a hard, flat surface like my coffee table, countertop, or desk, if I even slightly press anywhere on the upper case, the shut down dialoge will appear, and if I continue to hold, it will shut down as if the power button were pressed.
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<Edited by Host>

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MBP shuts down when not plugged into wall

hey there,
was wondering if anyone has experienced this paritcular problem or knows what to do...
I've had my MBP for about a week now, and I just notcied a day that it randonmly shut down... but it was only once, so I though it wasn't that big of a deal. I left the computer charging all night ast night, and when I tried to start it without it being connected to the wall, it wouldn't boot. I checked my batter power, which is 89% full, reset the PRAM and reset all of my premissions, but it still shuts off everytime the DC adapter isn't plugged in. I aso ran the memtest program for RAM which someone on this forum had suggested, but it says that everyhting is A-Ok... What do i do? Somebody, please help!

I am having the exact same problem as you! The computer will run all day plugged into the wall, but after I remove power, it shuts down within 10-15 minutes. It usually refuses to start up again at all until you plug it back in, even though the lights on the battery indicate full charge. After plugging in and restarting, OS X still reports full battery charge. I have tried resetting the PRAM and PMU, and also cleaning the magsafe connections. Apple Hardware Test reports no problems.
I added a stick of Techworks memory from OWC when I got the computer. Other people with sporadic shutdown problems seem to be pointing to bad memory as the culprit. I don't know if that applies here though, because the problem only happens on battery power. Also, I installed the memory as soon as I got the computer and it's been working fine for almost a month now. My shutdowns didn't start until a couple of days ago. I think i will remove this extra stick of memory and see if the problem goes away, just in case. Maybe you should try removing the additional memory you got from the apple store to see if you got a defective piece.
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MBP shuts down when connecting to power

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