Odd Charging Problem

Discussion in 'Maintenance' started by mattmk1, Mar 17, 2016.

  1. mattmk1

    mattmk1 Active Member

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    I was expecting the voltage to be a little more stable? Although im more used to cars than bikes.

    I also thought anything over 15V was basically overcharging??
     
  2. sulaco

    sulaco Active Member

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    Haynes manual states 15.5v@5000rpm
    My voltage changes are almost the same as yours but about 0.5v higher across the board, but I have a brand new battery, stator and reg/rec.
    At idle putting the indicators, lights, horn etc will make it dip.
    unless you're exceeding 15.5v I'd see how it goes.
     
  3. mattmk1

    mattmk1 Active Member

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    OK thanks, iv just run it up to 95 degrees and took the following:

    13.2 battery cold
    14.8 cold fast idle
    12.8 hot idle
    12.6 hot idle main beam on
    2k rpm 14.1 v
    5k rpm 14.7 v

    Hot resistance

    0.5 through the reg rec where it needs to be.

    I can't decide if I'm being paranoid or not Haha. Seeing the idle voltage is a little worrying but it's steady and jumps the second you touch the throttle.

    None of the wiring or plugs are getting hot.
     
  4. sulaco

    sulaco Active Member

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    If it were me I'd be happy with that.
     
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  5. mattmk1

    mattmk1 Active Member

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    Cheers mate :)

    I put it back together, took her for a run jut now, all seems fine.

    15 miles and all was forgiven haha
     
  6. Mike07

    Mike07 Active Member

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  7. Mike07

    Mike07 Active Member

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    Is all okay,?..... keep an eye on your battery for a short while.... make sure its not cooking, you should be good.
    Mike.
     
  8. mattmk1

    mattmk1 Active Member

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    Yep all appears good thanks!

    All connections cool, battery cool, no acid smell, no bump starts. Ill check it all again in a few weeks as service is due so ill dig out the multimeter.
     

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