Consensus on proper maintenance of the 12V battery while on vacation?

[W1NGE]

While there are mixed opinions on the forums, it seems your service department and Porsche recommends using a trickle charger during this period. That could be a good option to ensure your battery stays charged and avoids any potential issues.

Trickle charger only trickles charge to the 12v battery and not the HV battery. To do the latter you must leave the car connected to an EVSE with a profile enabled - should the HV battery dip below the profile % then it will top it up.

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