I think someone at your your dealership may have given you incorrect info. From page 262 of my Owner's Manual regarding the passenger side footwell 12v socket: "The 12-volt plug socket and the connected electrical accessories function even if the ignition is switched off or the vehicle key is removed."Cowher wrote: ↑Tue Feb 14, 2023 5:43 am Very helpful and well documented thanks I had a Porsche trickle charger on my 2021 911 Carrera S - but plugged into the passenger side "outlet" - which I have used on my previous 911s... I was not aware that this was no longer a working option on my new 992 !! I think it may actually have drained my battery instead of keeping it charged !?? Anyway - the dealer informed me of this change - so today I will give your instructions below a try.... wish me luck !
thanks Mel
I use my pass side footwell port for my CTEK Lithium battery maintainer at all times when the car is not being driven. (2022 992 Turbo S)
More than likely the problem is with the charger Porsche is selling. They don't work consistently (or at all) and it's been reported by customers and dealers everywhere. Dealers who know will discourage customers from buying them. There are much better options.
See a newer post on this issue and more in-depth responses at the Carpokes thread here:
https://www.carpokes.com/viewtopic.php? ... hilit=ctek
Also, I would strongly recommend not using a regular SLA or AGM charger on a Lithium battery for anything more than brief periods of time.