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How can I change the Cmos battery on my acer extensa 500t

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  • Misty110464 Apr 22, 2008

    well that goes without saying an acer extensa 500t is a laptop and Thanks anyway I have found out now how to change the battery(CMOS) You remove the key pad undo the heatsink remove that and the battery is right there but thanks anyway for trying to help Misty.

  • Anonymous Apr 26, 2009

    where is the cashing??



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You have to open the cashing then only you can access the cmos battery

Posted on Apr 22, 2008


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2 Answers

I forgot password for bios ,that is category extensa 4230 thank you advance


Just remove all the screws at the back of your laptop and remove the CMOS battery located in the motherboard to reset the BIOS setting.

Jan 11, 2011 | Acer Extensa 500T Notebook

1 Answer

I have a bios password in my acer extensa 522u and i forgot it. how can i remove that password?

To reset the BIOS read the information from this link.

In case of your Acer Extensa laptop the easiest method would be using software from Hiren's Boot CD as it's pretty hard to open it up and reach for the CMOS battery or the jumper.

Nov 08, 2010 | Acer Extensa 500T Notebook

1 Answer

Inner battery dead how do I replace it?

you need to remove your CD drive and floppy drive if avaliable.remove the plate(s) under your laptop, and see if you can see a yellow casing with red and black wiring go to the motherboard. that is the CMOS battery. to replace that, you could go to Ebay, or your local computer store to get the battery. remove the old one, and place the new one in the laptop. If you can't do it, bring the laptop to the store with you. Please rate my solution.

Jun 10, 2008 | Acer Extensa 500T Notebook

1 Answer


you can check out there might be

May 16, 2008 | Acer Extensa 500T Notebook

1 Answer

I need to change the Cmos Battery on my acer extensa 500t can you tell me where I can find this and how to change it Thanks

Typically, the CMOS battery is a flat "coin-like" cylinder under a clip on the mother board. They can also be soldered in. Most often, these are either mercury or lithium batteries designed for very small current drain but a very long shelf life.

Their only purpose is to keep alive the BIOS settings when the power is off, and your PC will retain these settings without this battery as long as the power is on, even in stanby or as long as the main batteries are installed and not totally dead.

The CMOS keep alive batteries can be very pricey, special order critters, $30-$40 is not unusual.

To replace the battery:

1) Go into the BIOS, and record ALL the settings on paper.

2) Unsnap and replace the battery very quickly, hoping
that an internal capacitor will retain the settings just long
enough to do this = 1 or 2 seconds.

3) Check the BIOS settings again and fix them back to original
if need be.

4) IF the settings are lost, you may be able to use the
"Revert to factory defaults setting" feature in the BIOS.

5) if you loose the BIOS password and cannot get in:
a) Some PC's have a clear settings jumper on motherboard
b) Some PC's have a secret recovery password

contact manufacturer.

Hope this helps


Apr 22, 2008 | Computers & Internet

5 Answers

Acer Extensa 503T

let a computer repair shop do this because the computer has to be diassemled to acess the motherboard removing laptop covers is a delicate operation.

Nov 12, 2007 | Acer Extensa 500T Notebook

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