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Bike battery dead

  • 15-02-2012 8:05pm
    #1
    martyoo
    Closed Accounts Posts: 872 ✭✭✭


    Hi,

    I just got a scooter which is just after having its battery replaced and as I was driving it home the battery gauge on the display kept dropping and now it wont start. Any ideas what it could be?


Comments

  • #2
    Red Neck Hughie
    Registered Users Posts: 88 ✭✭Red Neck Hughie


    martyoo wrote: »
    Hi,

    I just got a scooter which is just after having its battery replaced and as I was driving it home the battery gauge on the display kept dropping and now it wont start. Any ideas what it could be?

    It's most likely the regulator/rectifier is not recharging the battery so it drained by powering the lights, the more you try to take out of your battery now the more permanent damage you do to it.


  • #3
    martyoo
    Closed Accounts Posts: 872 ✭✭✭martyoo


    It's most likely the regulator/rectifier is not recharging the battery so it drained by powering the lights, the more you try to take out of your battery now the more permanent damage you do to it.

    OK thanks for the reply but what does that mean exactly? How do I fix it?


  • #4
    Keith186
    Registered Users, Registered Users 2 Posts: 3,213 ✭✭✭Keith186


    Get your rectifier replaced. Get the battery charged. The battery could be fecked, if it is you'll have to buy another one.

    Don't replace the battery before the rectifier or you could kill that too!


  • #5
    CJhaughey
    Registered Users, Registered Users 2 Posts: 14,907 ✭✭✭✭CJhaughey


    You need to check if the bike is producing power before you go replacing stuff.
    Check the generator circuit is producing power, if it is then check the reg/rectifier is working.
    If thats working then check the battery is good, just because it was replaced doesn't mean it is good.


  • #6
    Red Neck Hughie
    Registered Users Posts: 88 ✭✭Red Neck Hughie


    martyoo wrote: »
    OK thanks for the reply but what does that mean exactly? How do I fix it?

    Your battery is there to start the scooter and little else. A continuous load or drain will use it up fairly quickly.
    Your scooter has an alternator which goes around with the engine and can generate electricity as needed, only problem is its AC and high voltage, here is where the r/r comes in, it rectifies the ac to dc like your battery and regulates it to a slightly higher voltage than the battery so it basically trickle charges it constantly, replacing charge used in starting and supplying lights etc. If any stage of this from alternator to r/r is damaged it ends up with a dead battery, most likely in my experience is r/r but as CJH says it could be any stage so check before you throw kit away.
    To be honest I doubt you will be able to fix it yourself if an r/r is new to you. Some here don't like it but if you try biker.ie there's always someone willing to help out.


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  • #7
    Del2005
    Registered Users, Registered Users 2 Posts: 19,031 ✭✭✭✭Del2005


    martyoo wrote: »
    Hi,

    I just got a scooter which is just after having its battery replaced and as I was driving it home the battery gauge on the display kept dropping and now it wont start. Any ideas what it could be?

    Did you get it from a shop or private?

    If a shop bring it back as it's not fit for purpose and get them to fix it.

    If private then you'll need to do as the others said.


  • #8
    martyoo
    Closed Accounts Posts: 872 ✭✭✭martyoo


    Did you get it from a shop or private?

    Private.
    To be honest I doubt you will be able to fix it yourself if an r/r is new to you

    Thanks a million for the replies. I will have to get a mechanic.


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