-
Want to remove ads? Register an account and login to see fewer ads, and become a Supporting Member to remove almost all ads.
Anybody install an Ohmmu battery in their X? Looking for feedback.
- Thread starter Marcia L
- Start date
scottf200
Well-Known Member
Did you contact Ohmmu support ???? since they have a "4 Years Full-Replacement Warranty" [48 months from date of purchase 100% replacement coverage for performance failure of any sort. ... To file warranty claim contact us via web-chat or send email to [email protected], be sure to include a description of claim and photos (if applicable); Replacement units are sent within 24hrs (on business-days) of approval of claim along with a return shipping label for the warrantied unit.]
ASIDE: I was going to give my OEM 12v to a local 'autozone' or something but perhaps I'll keep it for emergencies.
Seems like you could just wire them in parallel in a pinch. Heck wouldn't 12g copper work in an emergency for this.
Last edited:
scottf200
Well-Known Member
A week's history with 2ish days on the OEM and 5ish days on the Ohmmu.
Graph from: QUICKLYNKS Auto Battery Monitor BM2 Bluetooth 4.0 12V Device
Graph from: QUICKLYNKS Auto Battery Monitor BM2 Bluetooth 4.0 12V Device
Wesexcellence
Member
The battery is fine.Did you contact Ohmmu support ???? since they have a "4 Years Full-Replacement Warranty" [48 months from date of purchase 100% replacement coverage for performance failure of any sort. ... To file warranty claim contact us via web-chat or send email to [email protected], be sure to include a description of claim and photos (if applicable); Replacement units are sent within 24hrs (on business-days) of approval of claim along with a return shipping label for the warrantied unit.]
ASIDE: I was going to give my OEM 12v to a local 'autozone' or something but perhaps I'll keep it for emergencies.
Seems like you could just wire them in parallel in a pinch. Heck wouldn't 12g copper work in an emergency for this.
After update I got the message.
Today I did hard reset and message is gone but I need to know what Ohmmu is doing to help it not return.
scottf200
Well-Known Member
Did you contact them when it happened?
Re: but I need to know what Ohmmu is doing to help it not return.
Did you contact them for this?
Please provide more information. Thanks.
scottf200
Well-Known Member
I did a road trip from Thu-Sat. It was to a hotel/waterpark 3 hrs away ... so drive there Thru 4/12 and return Sat 4/14.
On Sunday, I moved my car out of the garage and saw this message: 12V battery must be replaced - Schedule service
Contacted Ohmmu support and they had me do the change Tire Configuration (service menu) size and change it back.
The message went away. Apparently, for the duration of that message, the car will keep the DC-to-DC converter going (ie. steady ~13.3v).
... well that is still being evaluated because my voltage is still a steady-state ~ 13.3 even after that message disappeared.
If I get this on a longer road trip at least it will be easy to resolve in a few minutes and my 12v monitor showed the battery being just fine.
[/quote]Manual: (GTW_w174) - 12V battery must be replaced - Schedule service - Software will not update until battery is replaced - The low voltage battery is showing degraded performance and needs to be replaced. Until the low voltage battery is replaced, vehicle software updates will not complete.[/quote]
My 12v install was on 04-23-2022
TeslaFI OTA install history.
04-29-2022 - 2022.12.3.2
04-21-2022 - 2022.12.3.1
04-13-2022 - 2022.12.1
Here are my 12v battery voltage charts related to the events.
On Sunday, I moved my car out of the garage and saw this message: 12V battery must be replaced - Schedule service
Contacted Ohmmu support and they had me do the change Tire Configuration (service menu) size and change it back.
The message went away. Apparently, for the duration of that message, the car will keep the DC-to-DC converter going (ie. steady ~13.3v).
... well that is still being evaluated because my voltage is still a steady-state ~ 13.3 even after that message disappeared.
If I get this on a longer road trip at least it will be easy to resolve in a few minutes and my 12v monitor showed the battery being just fine.
[/quote]Manual: (GTW_w174) - 12V battery must be replaced - Schedule service - Software will not update until battery is replaced - The low voltage battery is showing degraded performance and needs to be replaced. Until the low voltage battery is replaced, vehicle software updates will not complete.[/quote]
My 12v install was on 04-23-2022
TeslaFI OTA install history.
04-29-2022 - 2022.12.3.2
04-21-2022 - 2022.12.3.1
04-13-2022 - 2022.12.1
Here are my 12v battery voltage charts related to the events.
Last edited:
Actually, the DC-DC converter is always running, whether the car is on or off. That is why you always see 13.3v. That is the float voltage for the original AGM battery that came with the car. The nominal voltage of the AGM with no charge (or load) being applied is 12.6. If it ever needs a boost, the converter will rise to 13.6 (perhaps higher).
scottf200
Well-Known Member
You can see in my 7 day chart it was regularly at 14.2v. This goes back months actually. At one point in a prior OTA it may stay around ~13.3 for a duration.
Only since this message has it stayed around 13.3v (and even after I did the tire config trick it has stayed there so far.)
Aaron14902
Member
I just got the same message this morning. My 12V is 4mo with 4,000 miles on it. I reached out to Ohmmu so we'll see what they say. So your update came after the message?
Aaron14902
Member
Ohmmu replied back with the wheel config reset and it cleared the error. I keep on forgetting about this method and it seems like a deeper cycle than powering off. You can hear loud clicks that I assume are physically disconnecting something.
scottf200
Well-Known Member
1 day and 7 days and 15 days --- see top right of pictures for the number of days
1 day
7 day
15 day
1 day
7 day
15 day
scottf200
Well-Known Member
Assume the 'wheel config change' reset for you as well. I have not had a problem since the only time it happened.
Here is a chart from my last 15 days.
scottf200
Well-Known Member
I don't see anything on their website, but here's a post on TMC:
Vendor - Antigravity Group 51R LiFePO4 Lithium battery for Tesla Model 3/Model Y
In 18 years of tuning/performance in BMWs, we come across a number of products that fill a necessary void in the market or simply do the specific task more efficiently. Since adding Tesla to our lineup, we want to do the same and bring new and innovative products to the marketplace. While...
teslamotorsclub.com
I do see them listed at our distributor though with what appears to be two AH ratings. Not sure though.
scottf200
Well-Known Member
I'm going on a long road trip in the near future and wanted to double check how the Ohmmu has looked during the OTAs when it is "on it's own".
I'm pretty confident after seeing the results below:
07-09-2022 00:48
07-15-2022 23:07
I'm pretty confident after seeing the results below:
07-09-2022 00:48
07-15-2022 23:07
doghousePVD
My grandfather’s car
Isn't an issue for Li batteries, such as Ohmmu, is very poor performance when really cold, i.e., much worse the lead acid?
In California that doesn't matter, but I live in Maine.
In California that doesn't matter, but I live in Maine.
Similar threads
