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Thread: CPS2 Battery Question

  1. #1
    Kuroko's Training Dummy
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    CPS2 Battery Question

    Guys
    On the CPS2 batteries do they start to drain low then stop working or are they up around the 3.6V and a little more than all of a sudden stop working?

    I got a Puzzle Fighter II Turbo and the battery tests strong at 3.65V so not sure if I need to change it or not?

    Thanks

  2. #2
    Schlonginator II: Judgment Dong
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    I don't know the answer, but if you don't know when it was changed then go ahead and do it.

  3. #3
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    Quote Originally Posted by jeffg View Post
    Guys
    On the CPS2 batteries do they start to drain low then stop working or are they up around the 3.6V and a little more than all of a sudden stop working?

    I got a Puzzle Fighter II Turbo and the battery tests strong at 3.65V so not sure if I need to change it or not?

    Thanks
    You do realise... we have a tech section don't you?

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  4. #4
    Formerly Raz_Hoe.
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    Quote Originally Posted by GohanX View Post
    I don't know the answer, but if you don't know when it was changed then go ahead and do it.
    This.

  5. #5
    Zero's Tailor
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    There's an old thread on it here:

    http://www.neo-geo.com/forums/showth...-span-17-years

    But the tl;dr is - it's not as much a question of the battery charge level gradually dropping below a threshold. Instead, it's that the stock lithium battery can suddenly, randomly die. It may only last 5 years, or it may last 15 - 20 years.

    Anyway - totally agree that if you don't know when or if it was changed, then definitely change it.

  6. #6
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    Pretty much what's been said. As a rule of thumb, if you know when it was last changed, change it 3-5 years later. If you don't know when it was last changed, change it immediately.

    The batteries can die at any point after that for a number of reasons, so be proactive.
    Last edited by JoeAwesome; 03-22-2017 at 10:33 PM.
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  7. #7
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    CPS2 Battery Question

    Yea luckily I had battery holders installed on all my boards so if I even think it might die, pop it out and pop one in...magic!! Lol and I put a little tape printed with the date the battery was changed.


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