tcirillo

thanks. would you know about the cigarette lighter outlet that comes with the smoker's package (at least i think it comes with it; i pick up this wk)

1RedHead

There is no additional outlet with the smokers package. It's just a cup ashtray that fits within the drink holder. What is your adversity to just hard wiring the battery?

tcirillo

thanks re smoker's package. i'm in a condo location where i have no tools available to me, and limited garage access. i'd be doing it in the street, w/o tools. doesn't seem practical. a functioning footwell outlet would be hugely better for me

tcirillo

wherer is the battery located? is it in the passenger compartment, behind the firewall, or in the boot?

1RedHead

It's not that complicated and should take you 5 minutes at most. The battery is in the frunk under the plastic cover. All it takes is a wrench, at a minimum an adjustable one for the battery terminals. If you don't feel comfortable with doing it, have the dealership do it. The problem with the internal port is that the car goes into sleep mode and shuts this down. Your other option is to use the port, make sure your lock the doors but you are going to have to route the cable through a partially open window. This will keep the car from going into sleep mode and shutting off the port.

tcirillo

thanks for your thoughts. this much i CAN do in a driveway with a wrench, so that IS the route i will go thanks to your guidance

Seacil

My Porsche Li charger kept going off-line, both when using the inside 12V port and when going directly to the batter,y UNTIL I locked the doors.

Michigan 992

Interesting. I locked the doors on mine and it went offline within 2 days. Effectively no difference.

With the early cars there are definitely software differences. Mine was an early April build that was reflashed before delivery so I don’t know what software level it is equivalent to now.

Moosedoc

I use the Porsche branded charger (purchased from Suncoast ) and found that if the ignition is on and I connect the charger into the 12V socket in the passenger side footwell and plug the charger into the wall supply, the 12V socket doesn’t time out after 30 minutes once the ignition is turned off and the doors are locked.
Apparently if current is sensed in the 12 V socket while the ignition is on, the 30 minute auto shut off is temporarily disabled. Haven’t yet tried this for longer than one night ( I’ve only owned
my car for 4 days).

digits

Reading these forums, you'll notice that the 992 has exhibited a series of mixed results with individual cars/chargers/battery types. I was never able to get the Porsche Charge-o-mat Pro to work with my 992 (built in September 2020). I even tried two different Porsche branded chargers (I've had to charge multiple Porsches at once so I have a few of 'em). My 992's 12v footwell socket would always timeout. I tried the suggested tricks (leaving ignition on for several minutes after plugging in the charger, locking the doors, not locking the doors). I never tried direct to the battery because I personally find plugging the charger into the footwell to be simpler. My car has the LiFePo4 battery so I got the CTEK Lithium US and the CTEK 12v socket adapter and it has worked flawlessly ever since.

Don't use the lithium charger unless your battery has a label that says "LiFePo4". Don't trust the sticker on the battery bracket that may say Li-Ion - some cars have a Li-Ion sticker on the battery bracket despite the fact that they are actually equipped with an AGM battery! Look at the battery itself.

540gone

As posted above, but adding this since people keep asking. Then just connect charger, run the wire along the frunk hinge, close frunk (or not), done.

KLOC

The procedure for getting the Porsche Charge-O-Mat Pro to ‘connect’ and stay ‘connected’ to your 992 is known as The Canbus Dance.

My 2007 BMW GS Adventure requires the same Canbus Dance when using the under-seat accessory socket with the special BMW charger.

There is no way to wake up a Canbus controlled accessory socket short of turning on the ignition.

Doing The Canbus Dance ensures that the socket is awake and that the vehicle ‘knows’ not to turn the socket off in the presence of the Charge-O-Mat Pro.

1. Plug the charger into the footwell socket.
2. Turn the ignition to the accessory position.
3. Plug the charger into your wall socket.
4. Select the appropriate Charge-O-Mat charge mode for your battery type.
5. Turn off ignition and lock the vehicle.

Moosedoc

I wish these instructions were included in user manual for the 992. I’ve been using this method of keeping 12 Volt socket active and it has reliably worked to keep the battery charged.

CodyBigdog

Just got back from 3 weeks in Seattle and then Alaska! WOW. In any event, before I left, I used the CTEK lithium charger from Porsche to “top off my battery”. Zero problems unlocking and starting upon my return.

I have used the port inside the car, and if you follow the instructions - to the letter - with the CTEK charger, it won’t time out. Nevertheless, what I discovered was that charging through the 992’s cigarette lighter port, the CTEK charging indicator never showed a “full charge” (although it probably was fully charged)…so I called the technical guys at my Porsche dealership and they suggested charging directly at the battery terminals. So I pulled off the plastic covering/shroud (takes 10 sec) and did that. Then it showed a full charge on the indicator light(s).

I also used the same CTEK charger to top off my regular batter on my M4 (at the battery terminals - BMW makes it super easy to do). Worked l;Ike a champ.

GTS21

Any chance you could post photos of the battery connection and the part numbers? I have a Porsche Charge-o-mat Pro and want to hardwire it to avoid any (more) dead batteries. Thanks