Mike818

Looking forward to finding out.

Based on the driving I've been doing it does seem like there is a lot going on behind the scenes. From watching the Voltage reading on the dash and correlating that with If I have topped off the battery it seems to work something like this:

If the battery is full it will just straight run off the battery without doing any charging until reaching some X level of depletion.
Then it will opportunistically recharge the battery. (Idling, deceleration)
Once the battery is too depleted and the start stop becomes unavailable it will begin charging full time like a traditional system. Once it has enough juice to enable start/stop it will then go back to opportunity charging. It never seems to bring the battery back to a full state of charge on it's own. Perhaps with enough idling "opportunity" it will, or maybe different modes have their own charging strategies (TBD).

siberian

If you do get rid of it, please post. Thanks

siberian

CJDCREW

AGM Battery or ***?

siberian

*** would be more universally interesting. Thanks

siberian

Antigravity

The few word answer is yes, plug and play no changes needed in PIWIS 99% of the time roughly.

Our Batteries work fine with the AGM setting for Batteries and in fact we tell people to NOT change the setting in our instruction manuals and on the stickers we place on the battery.... unless they encounter any flags or an anomoly. The reason is firstly because the Charging profile (in Cars and Vehicles) for AGM is very similar to Lithium and easily within the range that lithium handles. Note that a Car does not charge like the stand alone Chargers you buy to maintain your battery, a Car has a basic Charging profile, but the stand-alone charger usually has the "recovery/save/recondition" modes which are basically "desulfate modes" that spike voltages to lead/acid batteriesto remove sulfates from lead acid plates and which does NOT occur in Lithium Batteries. Lastly, when you don't change anything about your vehicle when you put our battery in you have a solid baseline to establish the Antigravity Battery is working fine without any changes as it shoul, then if you see flags we can see if there are any issues. So essentially YES the Antigravity is PLUG AND PLAY and not needing coding. We have found this almost across the board in all brands of vehicles, and mainly Porsche since they seem much more inclined to have flags if any voltage is off even by a tad.

Lastly as an FYI.......in your Car Lithium works fine with an AGM setting, but you don't want to use an AGM Lead Acid stand-alone charger on a Lithium Battery due to them usually having a Desufate Mode usually named something like "recondition, save, or repair" these modes spike voltages to the Lead/Acid battery to remove sulfate from the lead plates, but lithium does not sulfate and does not need the spiking voltage, so that is why you use a Lithium Specific charger when you use the chargers on Lithium batteries.

Antigravity

Up unitl I think 2018 all (modern) Porsche Batteries used a ground strap similar to what I have in the picture above. It has that oval plug area to plug in an Oval Linbus plug. This is called an Intelligent Battery Sensor (IBS). So you plugin a connector that is located in your car into this plug on the Ground Cable. But then in 2018 Porsche started installing their own Branded Lithium Battery that has this IBS and plug directly into the Porsche Lithium Battery , instead of the Ground stap like the AGM equipped Cars. But they both send the same data to your cars system, but as I mentioned in the Lithium Battery the IBS is built into the battery. So you will see that Lithium equipped Cars has a Groundstrap without this IBS Plug on it, whereas AGM Cars will the IBS on the Ground Strap itself. Then if you look at the part# on the Porsche Micro-fiche you see that this is the option fo the AGM equipped cars. Hope that makes sense.

I want to be blunt, we have heard of about 10 people who have done this and we have not done it ourselves but they said it worked. I used to have a GT3 RS but that was a 2016 which didn't have the new IBS and Lithium Battery so we have not done this with our own car yet since we don't have a Porsche at the shop anymore.

Jeff Whitten

This thread feels oddly familiar 😊