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  1. #1
    Very Active Member JKMSPYDER's Avatar
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    Dec 2012
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    Murphy, NC
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    Default Electrical question

    I recently had my original 4 year old Spyder battery load tested at my local auto parts store. It tested 11.0 volts under load and seems to be OK. My question is about my battery maintainer-float charger. I have had it for over six years and on float charge it always reads 13.5 to 13.6 volts. The manual states this, also. Recently it has been reading 14.4 volts to 15.1 volts in float charge. And this morning it was reading 15.4 to 16. Is my float charger going bad or is there something else going on with the electrical system or my battery? When I am riding my voltmeter reads 14.3 to 14.4. It seems strange that the float charger would read more volts with the motor off than when I am riding!
    2020 F3 Ltd

    Spyderpops Bumpskid
    Spyderpops Brake/Run/Turn Signal LED's
    Lamonster Garage LED Fog Lights and Headlights
    2013 ST-S retired 1/9/16 at 25,061 miles
    2015 F3S sold at 77,565 miles.
    2015 F3-S , BajaRon Plugs Can-Am Red

  2. #2
    Very Active Member
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    Default

    Check your float charger it could damage the battery

  3. #3
    Very Active Member RICZ's Avatar
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    Feb 2019
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    Portland, Oregon
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    Default

    Your running voltage of 14.4 is spot on. When not running, it should read about 12.5 +/-
    Ours is a red, black and chrome 2017 F3 Limited. Bought new in 2/2019. The avatar is my first bike back in 1952, a Simplex Servi-Cycle. Photo taken at the Barber Museum.
    2017 F3 Limited , Red, Black & Chrome

  4. #4
    Very Active Member JKMSPYDER's Avatar
    Join Date
    Dec 2012
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    Murphy, NC
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    Default

    Yesterday I finally decided to get a new battery. So all is good now.
    2020 F3 Ltd

    Spyderpops Bumpskid
    Spyderpops Brake/Run/Turn Signal LED's
    Lamonster Garage LED Fog Lights and Headlights
    2013 ST-S retired 1/9/16 at 25,061 miles
    2015 F3S sold at 77,565 miles.
    2015 F3-S , BajaRon Plugs Can-Am Red

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