Thinkpad CMOS battery
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Thread: Thinkpad CMOS battery

  1. #1
    Join Date
    Aug 2016
    Location
    Surrey, UK
    Posts
    148

    Thinkpad CMOS battery

    What ho one and all,

    I have an IBM Thinkpad T22 with W2k (don't laugh!!!) Rarely used, but needed to use it recently to read some car data from the car's ECU.

    Inevitably, the CMOS battery is virtually dead. I know it can be replaced but being a cheap-skate, I already have a CR2032 as a regular, button cell with no attached wires.

    Is it possible to remove the dead battery and solder the new one to the existing plug?

    Thanks and toodle pip

  2. #2
    Join Date
    Jul 1998
    Location
    Toronto
    Posts
    23,995
    The heat required to home solder wires to a battery would damage it. You'd also need to wrap/protect it properly with quality heat shrink material. Proper replacements aren't that expensive.


    eg:

    https://www.google.com/search?q=IBM+...w=1218&bih=567

    https://www.ebay.com/itm/1-IBM-Think...-/140638874382
    Don't believe everything you think.
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  3. #3
    Join Date
    Jul 1998
    Location
    Newport News, VA
    Posts
    11,179
    You CMOS battery should look like this:
    No soldering, just unplug and replace.
    Attached Images Attached Images
    Please do not use "PM" for personal help, post in forum so everybody can learn

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