Safe to run MBP without battery?

Hi, though I often like and am required to use my MBP without it's battery, I currently am just running it plugged into the wall. Since I don't want unnecessarily run down my battery without having gotten any true use out of it, is it safe to run my MBP plugged into the outlet without it's battery (the chance of a power outage causing me to lose my lost data aside)?

In addition to the above posts, consider that not only would a power outage be a risk, but keep in mind the relative ease of disconnecting the MagSafe adapter.
Also, there is a continuous chemical reaction occurring in the battery. Lifespan of the Li-polymer battery in your MBP is 400-500 cycles or 3-4 years, _whichever comes first_. If you leave it on the shelf for 3 years, unused, it will be nearly dead, especially since Li-based batteries need to be used to maintain their charge.
See my tip for lots of details:
http://discussions.apple.com/thread.jspa?threadID=1764220

Similar Messages

RUNNING MACBOOK WITHOUT BATTERY

Hi everyone,
Is it safe to run a Macbook without a battery fitted whilst plugged into the mains or is it not advisable.
Thanks in advance,
Alan

I've bought used MacBooks off of eBay for my family, seven of them so far over the last 6 years. I've bought 8 batteries off of eBay sellers, just going with the cheapest. Only had one with a problem, it gave out after 6 cycles. That one was replaced under the warranty by the seller. The only other batteries that have been a problem were Apple branded batteries that started bulging. I've had two of those happen.
Apple doesn’t make any batteries. They buy them from the same manufacturers that the third party sellers are buying from. The only difference is that Apple has their logo imprinted on the battery.

Mbp won't run (even without battery)

Hi, all.
I noticed a few days ago, my mbp shut down when batt life was at 30%. Battery is on the way out I thought. But now I'm getting worried as mbp will not switch on at all. Even when connected to the power adaptor, battery in or out. The battery indicators say full power. It's a 2008 model, the last before the unibody came out (yup that was gutting!).
According to other threads it should still work with the power supply if the battery is dead. Is this correct? When I push the power button it (mechanically) sounds like it will start, then all is dead after 5 seconds.
Could it be the battery, or does it sound more serious, I have tried the cmd/ctrl power and pram reset
Cheers Matt

Welcome to Apple Discussions!
Did you try a SMC reset?
http://support.apple.com/kb/HT3964
Good luck!

PB runs only without Battery

Hi,
i have a big problem since about 4 hours. My PB 1,5 is about 3 Years old. I bought a new battery about 6 month ago.
Everything worked normally. But 4 hours ago, I want to wake my Book up, and do some stuff. It was off. This is very strange cause I am sure it gone sleep.
Pushing the Power-Button, only does a short noise from the superdrive and a very low noised periodcal clacking.
I removed the Battery, plugged the powercore in, and it runs as usually.
So my PB won't start with battery inside. Only off battery with core!
But i used the whole day normally...
What can I do? What is the Problem? Is it the Battery, or is it the Book itself?
Hope you can help me...
Ragerds from Germany,
Alexander

Hi,
i have no idea where to start. I don't want to go to a Apple Service Partner, because they want about 60 Eur for nothing. At the end I'm not as clever as yet, but have 60 bucks less in my pocket.
Could it be the PRAM Battery? Or the PB Battery itselfs? I have a sort of warranty of the Battery cause it's only 6month old.
But could a battery die so fast? I used it, and in the next momen it's dead? The lights on the bottom are working as usual and show the status of the battery correctly (i think).
What you mean?

HT2332 Running macbook without battery.

With reference to this article: http://support.apple.com/kb/HT2332?viewlocale=en_US&locale=en_US
Is this still relevant to the unibody Macbook Pro (Late 2008) since the article was last modified in August 2008?
Thanks,
Adrian

Ahh, so much easier said than done before the 2011 models came out with real power, it seems to have really taken off as a problem since then.
On the other hand, those are some spectacular stats for your battery. Which programs do you use most frequently, and for what purposes (generally speaking, of course!)? If you don't mind me asking.
Mine's already dead and I really only use Chrome, iTunes, and VLC an hour a day, maybe.
Weird.

Run MBP with out battery?

My 2008 MBP battery has started to bulge meaning its time to buy a new one, only problem is I cant afford £120 at the moment so I was wondering if its safe to run the MBP with out its battery for around a month?

Just a word of caution... Without your battery, even a very brief power interruption will cause you to lose anything you may be working on... so, unless you have your charger plugged into an uninterruptible power supply... save often !

MBP running out of battery power before sleeping - Help!

Hi
My MacBook Pro has been running out of battery power before the memory-saving sleep mode kicks in, so it dies with a little click of the HD. It's not a hibernation state as when I reattach the power supply it boots up a new session.
I've noticed this since upgrading to Snow Leopard last year, but put it down to an old battery that had 45% charge and wasn't powering the MBP properly. I now have a replacement A1175 5600mAh battery which is giving me 2-3hrs usage (which I'm pleased at), but now it still dies before sleeping!
I have tried to cycle the new battery, but can't. I have reset the SMC several times, with no effect.
I used to cycle the battery every week or two, running it down until it would no longer wake from sleep, recharge overnight etc, but now I can't do this because it will die before sleeping!
I've read quite a few articles over the net about this issue, but there seems like no cure. It's really annoying me now as I frequently work on the move and a dying MBP could potentially be disastrous.
Can anyone shed some light on this issue? Is there something I haven't tried yet? I think it's a late '06 MBP.
From System Profiler:
Hardware Overview:
Model Name: MacBook Pro
Model Identifier: MacBookPro2,2
Processor Name: Intel Core 2 Duo
Processor Speed: 2.16 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 4 MB
Memory: 3 GB
Bus Speed: 667 MHz
Boot ROM Version: MBP22.00A5.B07
SMC Version (system): 1.12f5
Battery Information:
Model Information:
Serial Number: ˇ{ïwl"Ó*%#Û˙� $«\
Manufacturer: SMP
Device name: ASMB012
Pack Lot Code: a0b0
PCB Lot Code: c0f1
Firmware Version: 8800
Hardware Revision: 0000
Cell Revision: 0000
Charge Information:
Charge remaining (mAh): 1320
Fully charged: No
Charging: Yes
Full charge capacity (mAh): 5315
Health Information:
Cycle count: 12
Condition: Normal
Battery Installed: Yes
Amperage (mA): 1500
Voltage (mV): 11560
System Power Settings:
AC Power:
System Sleep Timer (Minutes): 10
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 10
Automatic Restart On Power Loss: No
Wake On AC Change: No
Wake On Clamshell Open: Yes
Wake On LAN: No
Current Power Source: Yes
Display Sleep Uses Dim: Yes
Battery Power:
System Sleep Timer (Minutes): 0
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 0
Wake On AC Change: No
Wake On Clamshell Open: Yes
Display Sleep Uses Dim: Yes
Reduce Brightness: No
Hardware Configuration:
UPS Installed: No
AC Charger Information:
Connected: Yes
ID: 0x0100
Wattage (W): 85
Revision: 0x0000
Family: 0x00ba
Serial Number: 0x001e1900
Charging: Yes

If you are not getting a warning, then there is something amiss with your battery. If a SMC reset and calibration does not fix the problem, then you may need to make an appointment at the genius bar and arrange to have your battery tested.
My old battery started doing the same thing--shutting down without warning. I replaced it, and the replacement battery started doing the exact same thing. I then returned the replacement, and the next replacement battery behaves in a normal fashion.
My first battery was worn out. My second battery was defective. My third battery is good.
Your battery should still be under warranty. Go back to where you got it and show them what it is doing and see if you can get a replacement.
Good luck!

HT3053 Can I run my MacBook Pro Late 2008 without battery forever? Is it bad in long term or anything? Does it make the system less stable?

Can I run my MacBook Pro Late 2008 without battery forever? Is it bad in long term or anything? Does it make the system less stable?
My battery got swollen (and I unfortunately noticed it very late and might have be running with it for months, which potentially explains all the crashes everyday and the trackpad not working anymore, the Apple test also says I have a bar of ram broken...) and I had to remove it because the back pannel did not close anymore... Can I still use my MBP normally forever that way? I was planning on buying a new mac anyway but maybe waiting for the next iMac upgrade in the year... Should I wait?

Other than the system shutting down instantly if you have a power outage, whcih could corrupt the OS. Nothing else bad will happen.

MBP performance with and without battery attached while plugged in

Hello all, I read somewhere that, even when plugged in, your MBP draws power from the batteries for performance. And I notice this when I try to use my MBP with the battery removed, which leads to lag and stutter.
So, my question is, does this happen while running windows on your MBP too?

Well, I do have an aluminum cooler with 2x60mm fans blowing quite a lot of air into the underside of the MBP. The cooler reduces the temp of the MBP about 5 degrees celcius with the battery, but without the battery, the cooler reduces the temp by about 10. Under load, the temperature differences become greater. I don't know if the greater temp difference without battery this is due to underclocking of the CPU, or just removal of the battery leading to less insulating material. And of the times I've runned Windows without a battery, there has been no shutdowns or BSODs, and I haven't noticed any change in performance.
Guess I should take the confound (cooler) out of the equation and see if performance changes with/without battery.
BTW, CPU-Z shows no change in clock speeds with or without battery in Windows.
Oh, and is there any way to see if my 8600GT is defective or not?
(Related Link About Failing GPUs: http://gizmodo.com/5273827/apple-extends-free-graphics+related-repair-offer-for- older-macbook-pros )

MBP Won't Run Off the Battery

I've had my computer for a little over a month, and the other day it stopped running off the battery. Everything is fine when I have the AC adapter plugged in, but the computer won't start up if it is disconnected. I ran the computer off the battery more often than not before this started happening. I removed the battery and put it back in a few times, but that didn't help. Has anyone seen this before? Thanks!

Mine did almost the exact same thing.
A few days after the update, it started registering 32 hours of remaining charge (33500+ MhA), and one day, all of a sudden, the battery just died.
Mac OS says there is no battery installed, obviously it won't charge or run on battery power, when I press the LED button it does nothing. It's just dead.
My machine is almost 2 months old... I called Apple and complained about this whole thing, because my machine has almost every other defect out there, including the whine, the almost unbearable temperatures, the moo, and the LED buzz... so I told them that enough was enough and that I wanted a new machine.
They just said I sould drop it off at the Apple Center, and THEY would decide if should get a new machine.
I feel so terribly frustrated. How is it possible that you spend $2000+ Dlls on a machine that after just 2 months does all these things, and still be treated unfairly, like an idiot, with arguments like "It's our decision if we replace the machine, or repair it..." ??
This is just not fair. But what can we do, right?

Macbook Pro 2009 doesn't turn on without battery

Hi. I have a mbp mid 15" mid 2009 2.66. In time the battery bacame very low like 4% health, and now is completely dead or broken. When i check the battery status leds it shows full and when I try to turn on the computer (of course with AC power) it tries to turn on for 1 sec then it dies, even with AC plug. i hear the fans trying to spin for 1 sec or less, i hear the hdd sound and i see the standby led like it is trying to power on normally but It seems like it's trying to use the battery to power on. (Even when the battery was good, it would't turn on if it was 0%.. i would have to wait 10-20min or whatever to charge it to aprox20% or whatever).
I can't buy a new battery right now so I tried to turn it on without battery (I am sure the battery is completely dead and if I put a new battery it will work for sure) but why it doesn't turn on without battery?? I don't believe it needs battery to run on AC power. It's a SMC thing. What can i do to use the SMC and run the computer wihout battery? Now I'm using it with SMC bypass (keep pushing power for 10 sec and plug the ac chord) but with SMC bybass the fans run at max speed, no keyboard backlight no sensors and all that uses smc its not working. Is it safe to use it that way? (it's not running slower, i don't have performance issues).
I tried PRAM reset SMC reset, removing battery with AC on.. nothing works. It won't turn on without battery. Only with smc bybass.
It is something i can do? or buying a new battery is the only solution?
Thanks.

You have a hardware problem. More than likely it is the cable that goes from the logic board to the display. It sounds like an internmitent short. Works sometimes not at other times.
The only way to fix a hardware problem is to replace the faulty piece of hardware and the only people that do that is either an Apple store or an Apple authorized repair center. That is unless you can diagnose the actual failed hardware part, find one from an Aftermarket Mac parts seller and replace the part yourself.

Is it safe to run a mpb with out a battrey

hi my battrey just died so i replaced it with one that was sat on my shelf (i think it's dead becaues it not charging) so i was wondering if it's safe to run the mbp with out a battrey till i get a new battrey ?
Message was edited by: Peter Woolford

I misspoke (wrote). Actually the MBP lowers the processor speed when running without the battery.
http://support.apple.com/kb/HT2332
http://www.tomshardware.com/news/apple-macbook-pro-battery-benchmarks,6643.html
Message was edited by: Kenneth Gorelick

Whine Present With and Without Battery

My whine occurs with or without using the battery.
Also, I run Photobooth and the whine disappears. However, as soon as I close Photobooth, it comes back.
It seems like my whine is more prevalent than other people's....
Anyone else experiencing this?
Mine is week 12

All cpu whines occur with and without battery, but with the AC adapter plugged in, its not as bad as with the battery. Before you close Photo Booth click on a still picture at the botton then quit Photo Boot and your whine will go away. Also the week # of your MBP has nothing to do with whether or not you have the whine.. maybe in the future it will determine if you have it or not but thats not the case so far.

How can I import contacts from Snow Leopard iMac to my Mavericks MBP without replacing all of the contacts.

*** Updated - FIgured this out right after I posted... I simply selected all contacts on the iMac, exported as a .vcf then dragged that into the MBP contacts ***
Problem solved...
*Original Question*
I have a MacBook Pro (MBP) running Mavericks... syncs contacts via iCloud with my iOS devices. My iMac is an original intel model from 2006 which can only run Snow Leopard. I have many contacts on that iMac that I would like to copy into the contacts on my MBP.
I used the 'Address Book Archive' feature on my iMac - transferred that to a flash drive then tried to import into the MBP contacts at which point it said it would replace the contents on my MBP... something I do NOT want to do.
Does anyone have a way of bringing all of my iMac contacts in to the MBP without replacing?
I appreciate any help... Thank you !
Mike
Message was edited by: microKOAT

Log in to icloud.com
Select Contacts
Click on the first contact
Hold down shift and click on the last contact
Click the gear box at the bottom of the screen
Choose "Export vcard..."

Using iBook G3 without battery - power adapter only

I would like to use my iBook G3 without the battery - just with the power adapter plugged in. I've tried starting up with the power plugged in and the battery removed, and no luck. Removing the battery with the power plugged in shuts down the computer.
I have an old battery that doesn't hold charge anymore and needs replacing. I use this computer from home 99.9% of the time and I'd rather not have a hot battery on my lap. Any thoughts or suggestions? I KNOW it's possible to do this as I've always seen demo models in stores set up this way. I have a relatively new adapter - the one that looks like an airport, not like a flying saucer.

Theoretically, it should work, yes. Have you tried resetting the PMU?
However, I strongly recommend against running with no battery for a couple of reasons.
First of all, even a mostly dead battery usually will hold enough of a charge to save your projects you're working on if the iBook is accidentally unplugged.
Next, if Apple had really intended using the iBook this way, they would have provided a battery hatch cover. As it is, using the iBook with no battery in place would subject the terminals to dust, lint, and debris. Needless to say, this is not good.
Apple has never really called its portables "laptops." They are not designed to run on your lap, but on a hard surface. I know most of us use them on our laps, but these days, I use one of these, which my son bought me for Mother's Day. I use it folded in half, and use the foot to prop up the back so that my iBook is kept cooler than it would be otherwise. It works great.
If the heat bothers you, it probably bothers your iBook, too. You may want to look into a similar solution. One long-time Apple user has suggested an inexpensive acrylic cutting board as a lap desk, and that would work fine, too. I don't recommend running without the battery, though, even if you could manage to do it.

Safe to run MBP without battery?

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