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Looking forward to seeing the Data so thanks for sending to me, and I apologize if the Battery Tracker might be displaying incorrectly. I 'll tell you how to get it more accurate in the email and show you some other stuff on reading the voltage data on the car. We know most people don't know what "voltage' is the correct voltage for the car, so we put in the SOC to make a general % that a Customer who isn't familiar with Voltage can read, but it also , when not set up correctly can show a inaccuarte % because it is equation based. But again you can acctually change its setting to your type of Battery use and it will be more accurate in the future. That is because a Cars systems are different levels of Charging to the battery....
Yes, 12.2 v would be VERY over-discharged for our Battery or an AGM. But lets see if the car is actually charging during driving. But also please send me screen shots as well as the file. The screenshots assist me to compare to other cars peaks and lows as well. I have alot of Porsche data so I will know if its in typical or not. Also the Battery Tracker has a Charging system tester.... it not super accurate like going to a dealer but will definately see if the charging is taking place in terms of it form of testing.
I've been updating the battery profile from AGM to LIFEPO4 as I've swapped the batteries in and out so that should be accurate. I'll send a second email with screenshots of the voltage history. I did run the charge test multiple times on both batteries and the results were a mixed bag of passes and fails.
Not so sure you have the same situation, your battery is draining to dead quickly and you said you had to use the RE-START feature, you also said it worked prior to that for a year in your Car, so Chad is working with you to see what is causing the fast drain, or if it could be a battery issue. The no charging thing is interesting so I don't know if Chad got you Battery Tracker Voltage data, but I'll talk to him Monday. Rotor has said (so far) that his SOC is reading wonky in the Battery Tracker, so that is why I asked if he actually had physical issues, like the car not starting or if he is getting flags. If the SOC reading is not accurate in the Battery Tracker then it cold be a Battery Tracker issue presenting SOC incorrectly, which we have seen before, but if the Car actually isn't charging the battery we will see that in the Voltage History Data and that is the important data to determine. But that also does not mean its the battery if the Cars system is not charging it. So we have to figure that out firstly.
The battery tracker will track and retain all it data when its attached to the car and hold it for 72 days.... but to download the data, YES you do have to turn on the App so it can communicate with the Battery Tracker Module and then when it connects via Bluetooth it then pulls the data and put it into the App. As a reminder the Voltage History is the key to accurately understanding and seeing exactly what is going on with the car. Also note that you can check you charging system with the Battery Tracker App also under the Charging Test, or the Cranking Test for voltage sag on a start.
On another note, I have heard that some 992 can have a high parasitic draw on them unless they go into the shop for some update.... I am not saying this is the problem but everyone should make sure that have that update that can draw down the batteries fast, I will try to look for those posts of people saying they had that issue.
check, my read was that OP was seeing the same thing as me and vice versa (car not showing recharge on the app, acknowledging your comments on the tracker not being accurate there) but that he was keeping his car on a tender so never got as low as I did. I generally don’t keep it on a tender as I drive it probably four out of seven days a week. However, since my issue resurfaced, I would see it start at 100% off the tender, then drop 5-10% or more across regular day of maybe 1 hour total driving. I went a year without really looking at the app because no issues. But, it “died” on me and when I used the restart feature (amazing), I checked the app to see where it was and it showed 1%. To be clear though, yes mine started out on install with a few random shutdowns which we never really figured out, they just stopped, then it was great for a year, then its back to seeming to not want to charge up. Chad is working with me, and you guys have been very responsive all the way. I do note we both have the 40ah and other than a cell phone charger I have no accessories. These cars are too complex!
Thought it worth sharing - I had a data sharing and discussion session with antigravity on my situation (amazing customer service guys). We did a battery reset - fully topped up the antigravity on tender, disconnect battery for a 5-10 min, reconnect, drive 5 min, turn off and lock car, leave for 5-10, return and drive a bit. Has been back to working perfectly for two weeks. They said, paraphrasing, that things can get out of sync and this process resets.
Thought it worth sharing - I had a data sharing and discussion session with antigravity on my situation (amazing customer service guys). We did a battery reset - fully topped up the antigravity on tender, disconnect battery for a 5-10 min, reconnect, drive 5 min, turn off and lock car, leave for 5-10, return and drive a bit. Has been back to working perfectly for two weeks. They said, paraphrasing, that things can get out of sync and this process resets.
Great to hear!
I sent Scott some data and he looked at it and preliminarily it looked like the state of charge algorithm was not providing good numbers, so he said to disregard those and just focus on voltage status. I sent him some additional data, but never heard back on that set. I did a longer drive this weekend, so I need to go in and see what the data looks like. Watching voltage on the instrument cluster it seems to hold at 13.2v for nearly the whole drive and dropped to 13V after a couple of stops and goes along the way, but I didn’t notice where it finished.
I sent Scott some data and he looked at it and preliminarily it looked like the state of charge algorithm was not providing good numbers, so he said to disregard those and just focus on voltage status. I sent him some additional data, but never heard back on that set. I did a longer drive this weekend, so I need to go in and see what the data looks like. Watching voltage on the instrument cluster it seems to hold at 13.2v for nearly the whole drive and dropped to 13V after a couple of stops and goes along the way, but I didn’t notice where it finished.
Hey RotorOver,
I recall our emails, last one was sent on the Jan 25, but as I reviewed you were using a USB Charger device and also the battery was constantly sitting at the mid to low 12v range, which is extremely over-discharged, but when you charged it, it behaved normally. So I'm not sure where we left off because I thought you were keeping it on a charger and removed you Phone Charger device that appeared to be creating a high parasitic draw on the battery. I was under the impression you simply were not driving often and leaving the battery off the Charger and that created the condition of a constant over-discharged state. I have not recieved any data since that point via an email , so feel free to send me some if you have any questions. But as I noted I need data when you are driving so we can see that the car is charging well.... because the only data I thought I recieved was it just in a low state of charge, yet not indication of you putting the battery on a charger or driving which would show the voltage go up in the Battery Tracker. Let me know.
@Antigravity Hey Scott, I'm not sure what emails you got or didn't get. A couple I sent had driving data and screen shots, so I just sent you an email with all them attached plus some driving data and screen shots from 8 & 14 Feb. Let me know if you got it.
@Antigravity Hey Scott, I'm not sure what emails you got or didn't get. A couple I sent had driving data and screen shots, so I just sent you an email with all them attached plus some driving data and screen shots from 8 & 14 Feb. Let me know if you got it.
HI Rotor, last email I recieved from you from mario.xxxxxxxxxxxx@icloud was Jan 25th. are you using the same email, because that is what I searched and have nothing else since then.
HI Rotor, last email I recieved from you from mario.xxxxxxxxxxxx@icloud was Jan 25th. are you using the same email, because that is what I searched and have nothing else since then.
RotorOver: Did you ever find the issue? Thank you.
Interested here, too. My problem came back and after a lot of discussion with antigravity (again, amazing customer service, I can not imagine any other battery manufacturer messing with me this much) I’m in the dealer looking at alternator and control module. I never was getting the car sending voltage above 13, not enough to charge the battery up.
@mlrtime3@CJDCREW After having the dealership look at the car and sharing data with Scott and him reviewing it, it looks like the car is charging the battery as it should. The conclusion was the algorithm that derives the state of charge (SOC) in the Antigravity Tracker Plus app does not do a great job with this car, so that metric in the app can't be trusted nor can the "Charging" status or lack there of. Scott's advice was to focus on voltage. Even doing that, you can see that the car rarely starts charging the battery immediately, but eventually it does. Sometimes it might take 20 min or more before you see the voltage come up. Some of that probably has to do with the recuperation function (see below), which is probably throwing off the app algorithm as well. I did successfully do a 4-day trip in the car running the AG 40ah battery and didn't have any issues, but I was also careful not to rip through a bunch of starts without getting some driving in, which is easy to do where we were. Probably a downside going go with the lower amp hour battery, but I think if you are smart about it, it shouldn't be an issue.
@mlrtime3@CJDCREW After having the dealership look at the car and sharing data with Scott and him reviewing it, it looks like the car is charging the battery as it should. The conclusion was the algorithm that derives the state of charge (SOC) in the Antigravity Tracker Plus app does not do a great job with this car, so that metric in the app can't be trusted nor can the "Charging" status or lack there of. Scott's advice was to focus on voltage. Even doing that, you can see that the car rarely starts charging the battery immediately, but eventually it does. Sometimes it might take 20 min or more before you see the voltage come up. Some of that probably has to do with the recuperation function (see below), which is probably throwing off the app algorithm as well. I did successfully do a 4-day trip in the car running the AG 40ah battery and didn't have any issues, but I was also careful not to rip through a bunch of starts without getting some driving in, which is easy to do where we were. Probably a downside going go with the lower amp hour battery, but I think if you are smart about it, it shouldn't be an issue.
What voltages are you seeing before you get it recharging and after? I can’t seem to get anything above 13.1 , but much isn’t enough to charge at all
What voltages are you seeing before you get it recharging and after? I can’t seem to get anything above 13.1 , but much isn’t enough to charge at all
I’ve seen drops in the data as low as 12V and spikes as high as 15V, but normally it will drop to around 12.9V after one or two starts, but work it’s way back to 13.2V. It doesn’t sit above 13.2V very often and usually it’s a spike or a short period as seen in the data. When I’m watching the voltage while driving, it seems to climb back to 13.2V, but might take an awhile to get there sometimes.
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