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  1. #1
    Active Member
    Join Date
    Dec 2022
    Location
    NY
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    100
    Spyder Garage
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    Default Battery Showing 36 Volts, then started & now OK! What the??

    Brand new AGM in my Spyder. Bike Hasn’t been out yet since, but it’s been plugged into my tender for a month. I have a Foxwell Battery Analyzer and just for fun, I thought I would test the new battery. I disconnected the harness plug for the tender, hooked up my tester and it’s showing 36.3 volts!! I’m like wtf. So, I disconnected the bike wiring from the battery and tested just the bare battery and it’s 13.9 and passes load testing. Soon as I reconnect it to the bike, it shows 36 volts again. Key off, motor off. Is there some sort of capacitor in the system that’s it’s seeing??

    UPDATE: I started the bike and it fired right up. No codes. Only ran it for maybe 30 seconds
    and shut it off. Retested battery with bike connected and got 13.6. I have no clue what was going on.
    Last edited by DaniBoy; 02-11-2023 at 03:54 PM.
    ~~2010 RS SE5 My first Spidey, but not my first ride~~

    The trigger’s been pulled. We have to
    get there before the hammer falls.

  2. #2
    Very Active Member
    Join Date
    Dec 2015
    Location
    Oakley Utah
    Posts
    8,126
    Spyder Garage
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    Default

    It sounds like your first (and only?) 36v reading was faulty for some reason.
    2014 RTL Platinum


  3. #3
    Very Active Member Mikey's Avatar
    Join Date
    Sep 2017
    Location
    Durham,Maine
    Posts
    3,578
    Spyder Garage
    1

    Default

    I would say your meter has a gremlin!
    2012 RTL , Pearl

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