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car battery running flat


  • car batteries go flat if:
    • you leave a power drain on with the engine not running
      • eg. headlamps, heater or other cigarette lighter device (eg. laptop)
    • the battery is no longer optimally functional
      • it is too old
      • has been run flat too often
      • it is cold (this exacerbates the functioning of an end of life battery or when that is not fully charged)
        • ensure you have all lights, fans and cig. lighter devices turned off before attempting to re-start car
      • there has been too many load situations and not enough car engine running time (eg. frequent starting the car but without ongoing running of the engine)
    • the alternator is not charging the battery
    • there is a short circuit in the system which drains the battery when engine is off
australia/car_battery.txt · Last modified: 2021/08/20 09:45 by gary1

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