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I have a gateway computer. I took the side off and cleaned it out with air. Inoticed it had a CR2032 battery on a ckt board. we have had this computer for several years. should i replace it or check it. Should i have a power cord hooked up before i take the battery out. AL

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That is just the BIOS battery, they generally do not need to be replaced.  If they do eventually go dead, it will be noticable because your system will not be able to keep the correct time while it is powered off.  If you begin to notice that the system clock stops while the system is powered off, this is a good indication that you should replace the BIOS battery.

Posted on Nov 06, 2008

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Www ehow com


Cmos battery is usually a 3 V button battery, there are variety of different brands so you need to open and check it.
eBay: ACER ASPIRE 7741G 334G50 MS2309 CMOS BATTERY - 476
http://www.ebay.com.au/itm/ACER-ASPIRE-7741G-334G50-MS2309-CMOS-BATTERY-476-/161408573087?pt=AU_Components&hash=item2594b35e9f&_uhb=1
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http://www.ebay.com.au/itm/CR2032-CR-2032-5004LC-3V-3-Volt-button-cell-lithium-battery-for-CMOS-/271586313364?pt=AU_Electronics_Batteries_Chargers&hash=item3f3bce4494&_uhb=1
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http://www.ebay.com.au/itm/SONY-CR2032-3V-SOLDER-TAB-Pin-battery-with-soldering-tag-for-CMOS-Bios-PLC-new-/271570170168?pt=US_Single_Use_Batteries&hash=item3f3ad7f138&_uhb=1

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Check the assembly of the computer. Make sure the main board is properly assembled and soldering and joints are not in contact with the case, there is no wires from the case touching the battery or its contacts, remove the battery and clean its housing.

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