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  1. #1
    Team Bilford's Avatar
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    PET-2000 Tach Battery Replacement

    Oppama says their battery lasts about 10 years. I got 22 out of mine, but it has finally died. Oppama customer service says the battery is not replaceable. The unit is sealed, but I peeled the front cover off and removed the 4 screws holding the display to the chassis. The battery is soldered in.

    Is there anyone on the board that has replaced one of these batteries before that can share the steps?

    I can't see a number or voltage on the battery.
    Last edited by K447; 11-02-2016 at 09:40 AM.


  2. #2
    Click avatar for tech links/info K447's Avatar
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    Post a clear photo of the board and battery.

    Might be able to work out what battery it is/was.

  3. #3
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  4. #4
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    There is a post on here somewhere with step by step instructions don't have the link with me.

  5. #5
    Team Bilford's Avatar
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    I searched before I started this thread and just now. I had several hits, but nothing about the battery. I have never posted a photo on the forum, what's the best way?

  6. #6
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    Update:
    I removed the battery and it was a CR2032 3v. I purchased a new battery with soldier tabs for $3.95. I soldiered it in last night and appears to be working fine. That certainly beats spending $200 on a new tach!

  7. #7
    Click avatar for tech links/info K447's Avatar
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    Quote Originally Posted by Team Bilford View Post
    Update:
    I removed the battery and it was a CR2032 3v. I purchased a new battery with soldier tabs for $3.95. I soldered it in last night and appears to be working fine. That certainly beats spending $200 on a new tach!
    Any tips on opening the PET tach case without causing damage?

  8. #8
    Team Bilford's Avatar
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    Quote Originally Posted by K447 View Post
    Any tips on opening the PET tach case without causing damage?
    You have to carefully slide a razor blade under the front cover. Start at a corner and lift the cover. It is simply glued down. There will be four tiny screws holding the chassis to the case.

  9. #9
    Team Bilford's Avatar
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    The question for me now is what to use to reattach the thin front cover. The glue that they used is really not tacky enough to reseal the cover. IDK if I should use a double stick tape, contact cement, or maybe a small bead of silicone.

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