Can't run on battery power....

I had a lot of problems with my MBP which Apple diagnosed as a logic board issue. I just picked up my computer after having the logic board replaced. I haven't used it long enough to see if the freezing, etc. has been eliminated, but one problem remains.
I was unable to run off battery power for more than 20 minutes. It would eventually just go black and I'd have to shut down. I'd start back up and it'd have 80%+ battery life left. Apple checked this issue and put other working batteries in and the problem still existed, so it wasn't a battery issue.
This problem remains even with the new logic board.
Does anybody know what this could be?

Try the remaining items of:
- iOS: Not responding or does not turn on
- Also try DFU mode after try recovery mode
How to put iPod touch / iPhone into DFU mode « Karthik's scribblings
- If not successful and you can't fully turn the iOS device fully off, let the battery fully drain. After charging for an least an hour try the above again.
- Try another cable
- Try on another computer
- If still not successful that usually indicates a hardware problem and an appointment at the Genius Bar of an Apple store is in order.
Apple Retail Store - Genius Bar

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HDX 18T-1200CTO can not run on battery power alone, but runs on AC fine

I recently acquired a HP HDX X18T-1200 CTO, with 2.53GHz P8700 processor and 8GB memory. Everything appears to run fine as long as it is on AC power. As soon as I remove the power cable it will go into the power on reset, and will continue loop on power reset cycle.
I tried to remove the two hard drives but that won't change the situation.
I tried to boot up the PC using CDROM and it behaved the same way. Runs fine with AC, but immediately go to reset once the AC adapter power cord is removed.
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Hi there @ehuang99
Welcome to the HP Support Forums! It is a great place to find the help you need, both from other users, HP experts and other support personnel.
I understand that you are having trouble with power when running on your battery. I am happy to assist you with this. Since the unit runs well with the AC power connected, you have to check and be sure the battery is charging correctly, or if there is perhaps a bad or intermittent contact for the battery. Check through these pages and see if anything is applicable. Also make note of any error messages, LED flash patterns, that sort of thing. Let me know what you see.
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Malygris1
I work on behalf of HP
Please click Accept as Solution if you feel my post solved your issue, it will help others find the solution.
Click Kudos Thumbs Up on the right to say “Thanks” for helping!

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Hey all:
I just upgraded from snow leopard to Mountain Lion, and i use external screen, keyboard and mouse all the time....
On Mountain Lion it's perfect when the power adaptor is connected as soon as you close the LID your external screen becomes the primary screeen and it's fully functional desktop (no mirroring or extension screen)
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Any idea how to use an external screen on mountain lion while i'm on battery power? (i know i can use mirroring but i want just 1 primary screen and the laptop screen would be turned off )
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Sherif

Sherif Daniel wrote:
my question is how to use an external display with mountain lion when i'm running on the laptop battery not connecting the ac adaptor?
Thanks again
You can't with the lid closed, that's one of the rules for clamshell mode.
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PB 1400cs won't run on battery power

I've got a 1400cs, purchased second-hand, and it seems to have a problem running on batteries. Even with a new battery, it doesn't want to run on battery power. `Runs fine on AC power, though!
What could cause this? What are my options for inexpensive repair on this problem?

Keith,
I also have a 1400 with the original battery which will not even run the 'book for a second when I unplug the power adapter, but I don't use the 'book anymore. Surprisingly, the battery level gauge in the menu bar is all red and the Control Strip shows a fully charged battery.
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Remove all power and take a look in the battery bay with a flashlight; gently touch each pin with the eraser-end of a pencil and see if any of the pins is loose or possibly set back beyond the others.
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Caution: Your computer is currently running on battery power.......

HP G72-227wm Notebook PC
WIN 7
Pentium Dual Core CPU
64 bit OS.
Had HD failure, could'nt perform recovery. Contacted HP and ordered Recovery Disc.
Disc arrived today, Bought a new HD as well as a Battery.
Put new HD and Battery in the computer as well as Disk 1 of the recovery disc set.
Computer starts, brought up loading windows, recovery manager came up, then........
Caution: Your computer is currently running on battery power. This process requires the computer to be plugged into AC power. Plug your computer into AC power. and then click OK to continue.
Of course the computer is plugged in, I have switched the power outlet 3 times. When the AC power is unplugged there is no light next to the AC port. AC power in port, White light then orange.
HP tech says thats because its CHARGING the battery.
****side note- after being on the charger the light is now constant white. Assuming the new battery is now completly charged.****
I have tried the following sequences with the tech:
Unplug>take battery out>plug the computer in with Disc 1 from the recovery set>restart> Same Caution:
Unplug>take battery out>hold battery power button for 40 seconds>re-insert the battery>plug the computer in with Disc 1 from the recovery set>restart>Same Caution:
After a considerable amount of time on the phone the tech says that my computer is obsolete and no longer serviceable by HP and advised taking it to a local computer shop.
This was not an issue before the HD failure. I hope someone can assist.
Thanks
This question was solved.
View Solution.

Hi @mbaysfpd ,
Thank you for visiting the HP Support Forums and Welcome. I have looked into your issue of the HP G72-227WM Notebook giving you the error message your computer needs to connected to the AC adapter.
Could it be possible that when you replaced the HDD you accidentally loosened the connector inside the notebook to the Ac adapter?
Is it loose or wiggles? It could need to be soldered again.
You could look at this post it might have something in it that might help.
Please let me know how things go.
Thanks.
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the bottom to say “Thanks” for helping!

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Macbook can't run on battery

A few months back, i dropped my macbook. This has been a problem ever since.
Basically, it has to be run on a power cord, i can live with it - but i'd rather get it fixed. I'm wondering what this drop did damage to on the macbook. There's a tiny dent in the top left corner, but there doesn't seem to be anything visible to the battery area? Could the problem be anything other than the battery?
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"Could the problem be anything other than the battery?"
It could be anything. Maybe something broke loose. No one here can give you an exact answer unless they personally take your computer apart & examine it.
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!http://i45.tinypic.com/jl0z95.jpg!

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I have a 17'' 2006 model Macbook Pro that I bought off eBay in August of 2008 that has worked fine up until today; as of a few hours ago, it does not run solely on battery power, and will automatically shut down when the power cord is removed. The battery shows a full charge and had a 3:00 charge when i used it sans power cord a few days ago. The previous owner claims to have replaced the battery shortly before selling me the computer.
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I'm pretty sure the model number of my computer is MA611LL/A.

When was the last time you calibrated your computer? Calibrating your computer's battery for best performance
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Hi, SoCal Cal. Take a good hard look at your battery contacts: both the ones on the battery itself and the "prongs" in the PB case that engage with the slotlike contacts on the battery. Are any of them significantly darkened/tarnished? Is there any debris or fluff on or in them? Clean out any foreign matter, then insert and remove the battery at least a dozen times in succession to see whether doing so will wear away any tarnish that may be impairing the necessary electrical connections. There's not really any easy, better way to clean the contacts, at least not the ones in the slots on the batttery itself. Then test again.
It sounds to me as though not all of the battery contacts are making good contact — though some of them obviously are, at least some of the time. Perhaps "working" the contacts this way will improve matters.
I really don't know what's going on with your machine; these are just shots in the dark.
Message was edited by: eww

When running on battery power, my MBP shuts down after 30 mins..please help

this has been happening for the last two weeks; whenever i run my MBP on battery, it goes blank/shuts down after about 30 mins...would start back on, but shut down even before the login screen comes! i checked the battery display under the laptop-it showed 3 green lights!! TIA!! i bought my MBP off the apple website last september!

With your symptoms, most likely, yes. If you have a 17" MBP, you are out of spec (based on Apple's specification of 80% health for 300 cycles). If you have a 15" MBP, you're in spec (84% health), but your symptoms indicate a problem (i.e. a defective battery). So, contact AppleCare!
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Click Apple icon on the Menubar.
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