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    Porsche 992 battery

    Hey guys, does anybody know of any issues with the 992 batter and it loosing charge and now retaining any charge?

     


    Re: Porsche 992 battery

    jamesdamanuk1:

    Hey guys, does anybody know of any issues with the 992 batter and it loosing charge and now retaining any charge?

     

    I am not aware of any issues, but I think I read that Porsche may be using Lithium batteries to save weight (these were at one time an expensive option on GT cars).

    Lithium batteries can be a little more picky about charging and storage conditions.


    --

     

    18 GT3 Manual, 73 Carrera RS 2.7 Carbon Fiber replica (1,890 lbs), 06 EVO9 with track mods. Former: 16 Cayman GT4, 73 911S, Two 951S's, 996 C2, 993 C2, 98 Ferrari 550, 79 635CSi

     


    Re: Porsche 992 battery

    Li battery was an option on the R.

    Declined due to small but catastrophic risk of a fire 


    Re: Porsche 992 battery

    With my 992C2S (now 2 years old) I have a had several electrical issues but those eventually turned out to be related to a faulty earth strap. (Replaced under warranty). The car still seems to lose more charge than older 911's if you leave it for a couple off weeks but since the earth strap change and a software update it seems to be better. Getting the hood open to access the battery when the battery appears to be flat is a major pain. Some of it is related to a Li battery but most is due to the design of the 992 and everything being electronic...Mine was completely flat in my tight spare garage. First you need to get into the car using the hidden keyhole (windows don't drop a bit either-don't close the door fully when you finally get in) which isn't easy with the emergency key under the door handle-mechanism is tight, then you need to have battery booster to open the hood via the fuse panel and an earth. The door strap in the jams don't  work as an earth on my car- you need to go for the latch-and most small boosters don't have a lead long enough to stretch. That enables you to pop the hood. Then you need to be careful you connect correctly. On a left hand drive car a compact booster will not stretch from the positive terminal to the the earth post on the car. So with Li battery and the design of the 992 nothing is easy if you don't have a battery tender to keep it topped up. And to have the tender I believe you need a lighter socket and if you don't it's not so easy....Next time I will have the 12v lighter socket...!! So I suspect that the supposed fire risk of a Li battery is the least of the issues with a 992.


    Re: Porsche 992 battery

    There should be another socket somewhere. Maybe by the passenger ' s foot , on the side. 


    --

     964 Carrera 4 --  997.2 C2S , -20mm -- 991.2 GT3 RS 


    Re: Porsche 992 battery

    There is. But to keep it live after you lock it you have to go through a process....not in the manual....

    I did not try it yet!


    Re: Porsche 992 battery

    So. Nothing has changed. My first 997 also had a bad grounding strip. Many were recalled. Porsche learned nothing?  A grounding strap guys!  
    As for opening the hood with a dead battery - same as it has always been. I can do it blindfolded. Where is the innovation? 


    Re: Porsche 992 battery

    As I understands ever since Porsche introduced the Macan, the 12V sockets inside the car shuts off after a while. So if one plugs in a battery maintainer via the 12V socket, it will only charge the car for a short while. The proper way to plug in a non-hybrid Porsche to the wall is to wire in a terminal directly to the battery and plug the battery maintainer to that.

     


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    Re: Porsche 992 battery

    Depends on the car (region, maybe even model year?). My 2018 charges through both 12V in the passenger footwell as ashtray without any problem.


    Re: Porsche 992 battery

    DuckieRS:

    Depends on the car (region, maybe even model year?). My 2018 charges through both 12V in the passenger footwell as ashtray without any problem.

    The way you can tell is if your radar detector stays on and drains your battery in a day or two. 


    Re: Porsche 992 battery

    My conditioner also works via the footwell 12v input - however I don't lock the car when charging. 


    --

    991.2 C2S Cab, X3 Black\Black - 2 kids, 1 dog


    Re: Porsche 992 battery

    CTek plugged in my 991.2 GT3 via the 12 V input. No issues. But on the Macan it indeed worked for  about 10 minutes only and same was happening on the 981 Spyder. 


    Re: Porsche 992 battery

    Lamborghini offers a special connector for the front luggage compartment. I connect the Lamborghini charger to this connector, the cable follows the gap in the front hood and I can actually close the car and even activate the alarm system without any issues. Works like a charm. 


    --

    RC (Germany) - Rennteam Editor Lamborghini Huracan Performante (2019), Mercedes GLC63 S AMG (2020), Mercedes C63 S AMG Cab (2019), Jeep Grand Cherokee Trackhawk (2019 EU)


    Re: Porsche 992 battery

    At the 992 there is no 12V input any more. Porsche advises to open the hood remove the battery cover plate and then with normal clamps connect the charger. Really stupid, there should be a decent solution for this. I solved it by installing a Ctek extension cable connected to the battery. Now I do not need to remove the battery cover plate all the time!

     

    IMG_1109.jpeg


    Re: Porsche 992 battery

    No issue with the battery on my 2020 C4S, but door handle opening auto function is 50% at best, even with key inches away from sensor.  Anybody have advice?


    Re: Porsche 992 battery

    Interesting, the 12V socket availability was always the reason to tick the option for the "smoker package" as a source for a 12V socket coming with the cigarette lighter...Therefore, I have both our cars (981 and 987) connected to the middle console ... so, is this not available anymore ?


    Re: Porsche 992 battery

    This is intresting, in my 991-2 I did not have the "smoker" option but still there was a 12V socket (passenger side central console). I wonder if a 992 with smoker packege will have a 12V socket.

     


    Re: Porsche 992 battery

    JR-550:

    At the 992 there is no 12V input any more. Porsche advises to open the hood remove the battery cover plate and then with normal clamps connect the charger. Really stupid, there should be a decent solution for this. I solved it by installing a Ctek extension cable connected to the battery. Now I do not need to remove the battery cover plate all the time!

     

    IMG_1109.jpeg

     

    All my 911s have had this extension put in. Really useful. 


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    Re: Porsche 992 battery

    Whoopsy:
    JR-550:

    At the 992 there is no 12V input any more. Porsche advises to open the hood remove the battery cover plate and then with normal clamps connect the charger. Really stupid, there should be a decent solution for this. I solved it by installing a Ctek extension cable connected to the battery. Now I do not need to remove the battery cover plate all the time!

     

    IMG_1109.jpeg

     

    All my 911s have had this extension put in. Really useful. 

    That looks like a good idea.  I assume you need a special battery maintainer that is designed for Lithium chemistry (I still have the old Porsche one that I've had for decades)?


    --

     

    18 GT3 Manual, 73 Carrera RS 2.7 Carbon Fiber replica (1,890 lbs), 06 EVO9 with track mods. Former: 16 Cayman GT4, 73 911S, Two 951S's, 996 C2, 993 C2, 98 Ferrari 550, 79 635CSi

     


    Re: Porsche 992 battery

    Grant, Porsche one can do lithium battery. Think it's called charge-o-matic pro or something cheesy like that. 

    Most of Ctek's offerings can do lithium also. 


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    Re: Porsche 992 battery

    Whoopsy:

    Grant, Porsche one can do lithium battery. Think it's called charge-o-matic pro or something cheesy like that. 

    Most of Ctek's offerings can do lithium also. 

    Thanks for the tip!

    Yeah, I have the original Charge-O-Matic from 20 years ago when I had my 996 new.  Time for a new one soon Smiley

    https://www.amazon.com/Porsche-Charge-Battery-Maintainer-Charger/dp/B00SVEA9I0/ref=asc_df_B00SVEA9I0/?tag=hyprod-20&linkCode...


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    18 GT3 Manual, 73 Carrera RS 2.7 Carbon Fiber replica (1,890 lbs), 06 EVO9 with track mods. Former: 16 Cayman GT4, 73 911S, Two 951S's, 996 C2, 993 C2, 98 Ferrari 550, 79 635CSi

     


    Re: Porsche 992 battery

    You welcome. I get one of those thrown in every time I bought a car😂

    including the 918, the Panamera turbo S AND the Taycan. Funny thing is all 3 doesn't uses that charger.
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    Re: Porsche 992 battery

    I have had issues with my 2020 992S and the Porsche Charge-O-Mat Pro I bought specifically because if works with Lithium batteries. There is a trick to getting it to work through the outlet on passenger side of the center console. That outlet is cut off from the battery within 30 minutes after shutting off the car. So you need to plug in the charger within that time. I have also found that you can't use that socket if the battery has started to loose its charge. Even if it is only slightly weak, it will cut off access to that socket. So, the only way I can get it to work is to plug in right after I have driven the car and the battery is strong. Otherwise I have to open the trunk and hook the charger to the battery terminals. 


    --

    992 Carrera S Cab, AMG E53 Cabriolet, Cayenne Turbo


     
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