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Matrixxxx

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About Matrixxxx

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  • From
    York , UK
  • Present cars
    2009 GTS
    Lexus ISF 2008.
  1. measure directly on the battery is should be above 12.3 VDC approx. anything below 12V means a new battery.
  2. if the battery is over the warranty period just replace , and it is not a good idea to charge in the vehicle these chargers will cause the battery to produce hydrogen, as gassing is the way of cleaning the plates. Out and on a bench is always best, prevents explosions and any AC getting into the ECUs'. trickle charging is ok in the vehicle. but in normal use a battery should never need external charging. it seems the Cayenne is very power hungry.
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