So started seeing that my computer clock date and time are ahead or behind. This computer is old so I think it's the battery. Had a few questions

  1. If I don't change the battery will computer keep working just fix the time and date when I turn it on?
  2. I removed the laptop battery so I use it straight from power. If I keep it plugged in and turn it off will it keep the CMOS battery good?
  3. Will battery leak if I don't change the CMOS battery?
  4. How do I change it? Where is it located and how easy is it to find and remove it?
  5. Does this model uses special cmos battery or like a regular clock battery? Where can I find this type of battery?


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    1 and 3 - they can leak if old but odds are the battery will not leak. Get the HP replacement battery or warranty-approved third party replacement and replace it. That is the best thing to do.
    – John
    Mar 15 '20 at 18:44
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    This video will show you how to tear it apart. I don't recommend using a drill, and I'd definitely watch the whole video before you touch the computer to make sure you know what you're getting into. @DavidPostill mentioned the battery to buy already. I'd just replace it and move on if it were me then all problems are resolved. :) Mar 15 '20 at 18:53
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    "Is it really a watch battery?" Get the HP Docs and the Part numbers - one should be the battery identifier. That will tell you.
    – John
    Mar 15 '20 at 19:03
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    The computer will turn on but (a) the clock will change time and (b) old batteries can and do leak over time.
    – John
    Mar 16 '20 at 0:06

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