Does using the 'AUTO' on the Headlight Switch, put strain & shorten life of battery ?

[ski.dive]

Does using the 'AUTO' on the Headlight Switch, put strain & shorten life of battery ?

 

[amrg]

Nope
Once the truck is ON and the engine is Running the alternator takes care of the electric load.
With the engine shut off the lights stay ON for a few seconds and go OFF

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