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Hyundai i20 flat battery issue

Discussion in 'Car Repairs / Maintenance' started by 233sqn, 11 Dec 2016.

  1. 233sqn

    233sqn

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    Hello all


    Just had to go out my son’s Hyundai i20 2010, non-starter with flat battery.


    When I got there battery was almost turning the engine over but not quite enough, but it wasn’t totally flat. I hooked up jump leads and it started immediately and is fine now, except that the on-board clock and trip meter have reset as if the battery had been disconnected.


    Is this normal does it suggest a fault somewhere?


    Thanks…
     
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  3. Burnerman

    Burnerman

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    I wouldn't worry about anything for now, the high drain on a low battery can easily cause this - sometimes the radio memory is lost too.
    Has the Hyundai been standing a while?
    John :)
     
  4. Peter.N.

    Peter.N.

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    It was probably the act of trying to start with a flat battery that reset everything, the voltage would have dropped below the critical point.

    Peter
     
  5. 233sqn

    233sqn

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    Thanks for your replies folks..... I'll keep my fingers crossed!
     
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  7. DaveHerns

    DaveHerns

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    If the battery is as old as the car- 6 years- it's probably due for replacement. Tell them to get it tested. If we have a cold winter, it's likely to finish it off.
     
  8. 233sqn

    233sqn

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    And it failed again tonight! Restarted on jump leads drove it home and within 3 hours it was flat again. Can't see anything causing it to drain so i think it's all pointing towards a duff battery, it's the original so perhaps it's done ok
     
  9. JohnD

    JohnD

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    six years doesn't seem long to me.
     
  10. Burnerman

    Burnerman

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    I'd say six years was minimal life for an OE battery, but of course we don't know what use it has had. For sure, a motor factor can happily put a heavy load test on the battery and sell you a new one if need be.
    Its also doing basic checks on the charging system - with the engine running, you should find the battery voltage to be around 14.4v.
    John :)
     
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