Won't start with battery in place

Unit is 4 years old with orig battery. Has been working properly up to this point. This morning I tried to start it on battery and it was totally flat. I noticed that when I pushed the start button, the light beside the charge port came on. Unit was un responsive. Pluged in the charger and no response. I removed the battery for a few minutes, put it back, and it started. Used it for a while, shut it off and left it for about an hour. Tried to start it and no joy. Taking the battery out made no difference this time. I then left the battery out and started it with the charger cable in and it is fine. Turned it on and off a few times and it is fine. Installed the battery and no go. Battery charge indicator on the battery ( hi cap ) shows 3/4 charge.
Any thoughts? Fred.

Hi,
You've got a good battery. Normally all batteries have to die depending on the number of charging cycles. It's time to buy a new battery but please try the following method first:
http://support.hp.com/us-en/document/c00821536
Again, if failed, you need to buy new battery.
Updated: We need to know what is your dv7 to find out part # for you. Please use the following instructions for find out the model/product of your machine:
http://h10025.www1.hp.com/ewfrf/wc/document?lc=en&cc=us&docname=c00033108
(or you pull the battery out and look at its label).
Regards.
BH
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Computer won't start with battery in it...

have an Aluminum 15" Powerbook G4. I have had this since 2001, when I bought it. I recently updated to OSX. I hadn't used the computer in months and when I went to try and take care of the computer and update to OS 10.4.5 I encountered a problem. When I turned it on nothing happened. I had to turn it off, hit the reset button and then plug in the computer. THe battery was dead so I expected that. But what happened next puzzled me and still does puzzle me.
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THis is why I'm posting.
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not sure if this will solve your problem but you can try..
look at the battery exchange program if your battery is eligable for the replacement or take it to the local dealer so they can check if your board sound is ok.
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Hi Kocevski_91,
Welcome to Lenovo Community!
As per the query we understood that you are facing issue with system not starting with battery in your G510 laptop.
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If still the issue persist, perform battery gauge reset, go to power manager select advance mode and select battery tab and click on battery maintenance under this option click perform under battery gauge option. Please perform and reply with results.
Hope this helps. Do post back if issue persists!
Best regards,
Ashwin.S
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Macbook Pro about 2012 won't start with out power lead in and runs very very slow Maverick OS

Macbook Pro about 2012 won't start with out power lead in and runs very very slow Maverick OS?

Take each of these steps as needed, and check to make sure it hasn't been fixed with a reboot afterwards before trying the next step.
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https://discussions.apple.com/docs/DOC-1992
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Make sure your hard drive is not over 85% full.
Make sure Spotlight is not indexing.
Make sure Time Machine is not running when you do other tasks.
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https://discussions.apple.com/docs/DOC-3036
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Hi
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Although I am an HP Employee, I am speaking for myself and not for HP.

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If you have Apple Care or your computer is still under warranty, give them a call and get a case number. Otherwise, take the computer to an Apple store or an AASP. Whichever is more convenient for you.

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Try resetting the SMC
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Disconnect the MagSafe power adapter from the computer, if it's connected.
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Repeating my response to your thread at TPF in case you (or anyone else hasn't seen it):
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X22;X24;X31;X41;X41T;X60;X60s;X61s;X300;X301;Z60m;Z61t;Z61p;560Z;600E;600X;T21;T22;T23;T41;R50;A21p;A22p;A31 and A31p
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Hp pavillion dv9700 won't start with Ac adapter plugged in

Dear all,
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Hello @stacey71,
Welcome to the HP Forums, I hope you enjoy your experience! To help you get the most out of the HP Forums I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I have read your post on how your computer is not able to boot with the power adapter plugged in, and with no battery. Are you still able to boot into Windows with the battery installed on your notebook? I would be happy to help you, but first I would encourage you to post your product number for your computer. Below is a is an HP Support document that will demonstrate how to find your computer's product number. In addition, it will also help if you indicate which operating system you are using; and whether your operating system is 32 or 64 bit. The more information you can provide, the better!
How Do I Find My Model Number or Product Number?
Which Windows operating system am I running?
Is the Windows Version on My Computer 32-bit or 64-bit?
Please re-post with the necessary information, this way I will be able to research this further for you. I look forward to your reply!
Cheers!
MechPilot
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.
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MacBook won't start on battery/shuts down when power adapter is removed

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Hi!
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Bye

My laptop won't start without battery mounted

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I updated it about two to three times and would still experience the same problem.
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Hello rameta,
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http://support.apple.com/kb/HT3964
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