Presario 2200 Compaq - CMOS/BIOS battery?

By Darmin
Nov 14, 2007
  1. I have a Compaq Presario 2200 model laptop.

    I have an issue where every time by laptop batter discharges the time clock resets. I believe that this is realated to the bios battery. I have taken the laptop appart properly via guide provided on compaq website. This is the maintenance guide with all the spare part numbers listed. However, this laptop is out of warranty.

    My problem is that I cannot locate the bios battery anywhere on the board. Could someone with some experience pleae review the diagram for this model and tell me where the battery is?

  2. bushwhacker

    bushwhacker TechSpot Chancellor Posts: 766

    First of all.

    Have you tried to calibrate the battery by BIOS? < This might help a lot of problems.


    Have you updated your BIOS ?
  3. pdyckman@comcas

    pdyckman@comcas TS Rookie Posts: 526

    You may want to 'google' this. Go online and put in your make & model + "battery location". Good Luck.
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