Apparently there is a way we can now bypass and get our cars to use other lithium batteries instead of the Porsche Batteries which has no ETA .


First we have to replace the Porsche ground cable with the 992 AGM battery one ( 992915181) part number .
We can then install the Lite Blox battery/ other lithium along with our IBS.
The IBS will be connected between the wiring harness and the new ground cable.
At the end the car shall be coded to a AGM battery instead of the lithium one.

https://www.lithiumax.co.uk/forum/news-and-events/porsche-pff-event-stuttgart

https://en.liteblox.de/shop/lite_blox-lb78xx-lightweight-battery-for-oem-industry/

anyone has done this ?

I am planning to do this .

 

So give Porsche a reason to void electronics claims?

 

Sounds promising, and please keep us posted after you do this. If it works, this is definitely something I won’t hesitate to do after my car is out of warranty.

 

Yes, I would keep you guys in the loop for sure

 

there are so many cars down and the faster porsche solves the issue the better .

We can’t just sit and wait and if they gonna void my warranty , oh well too bad for me then .

 

This is interesting, and thank you for sharing.

Any chance you can you share where you got the information?

@Antigravity , interested in your thoughts on this, if any. I recall the following from another post of yours:

https://rennlist.com/forums/992/1241...l#post17306301

Is this the sort of workaround you imagined, or have you guys had any other thoughts on this recently?

 

This is what I was hoping from the Porsche community, as with BMW, Mercedes, communities….if there’s an issue (not just the battery, but other things such as activating the matrix lighting, etc), and enough people want it fixed, 3rd party solutions will begin to surface.

If this works, could be a game changer, for being forced to use the Porsche Li battery.

 

Interesting and I hope effective, but I was under the impression that the “issue” tended to be a faulty BMS and not a faulty battery.

 

I presume the BMS is an integrated component of the battery, no?

 

Yes. The issue then is, what does the on board software do when it has no response from the BMS unit?

The ground strap does sound like a potential drain culprit and reason an "advisory" was issued concerning this.. I'm just curious as to what happens when the main procedure calls BMS subroutine and doesn't receive a reply, unless the new battery from a VAR provides a "reply" and if so beyond simply "saying" "I'm here" will it also be able to send other system messages...

There will also be some PIWIS coding in VOF etc. to tell the system you're now an AGM. Will this cause issues for those with RAS? Yes RAS folks in years prior had AGMs but many more gizmos were added requiring added umpf - ergo LiFePO4 became a "must". Could this cause an issue or is it only for those with RAS + other options?

We need more information beyond replacing a ground cable IMHO.

Keep us posted please!

siberian

 

My understanding is that lithium batteries are charged at 13.4V and AGM batteries at 13.8V. If you convince the car you have an AGM battery fitted when really it's a lithium one then won't the car ask the alternator to charge it at the wrong voltage?

 

Not if your descriptive (VOF etc....) the car is described as an AGM. As I mentioned there's more to this than simply swapping out a cable etc.

Let's not sink the ship in our rush to find a solution ...

siberian

 

Ok, sounds good.

You first.