I currently own a 2018 Model S 75D. Recently the Low voltage indicator came on. I checked the battery with a volt meter and it is reading 13+Volts even with the DC to DC converter disconnected. I don’t think it’s the battery because it’s only couple months old and its a Ohmmuu lithium battery designed to work with a model S. I tried doing a hard reset and the warning light is still on. Anybody as any idea or solution to this problem?
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Low voltage indicator
- Thread starter scientist1976
- Start date
Tam
Well-Known Member
That's the problem: It’s a battery that's not approved by Tesla.
Tesla is monopolistic when it comes to 12V battery.
Tam
Well-Known Member
If you want everything stays the same, you shouldn't allow Tesla to do a software update since last July.
Those smart cookies can sniff out an unapproved battery if previous programs did not.
It's a cat and mouse game.
Last edited:
ucmndd
Well-Known Member
Good question. You should ask Ohmmu.
Begs the question though, is it a "couple months old" like you said in your original post, or is it nearly a year old as "last July" would suggest?
I checked Ohmmuu site for Tesla issues. They seem to indicate to go into service and change your tire configuration to do a hard reset of the car. When the car reboots change the tire configuration back and reboot again.i would contact Ohmmuu with any continuing issues. They do not want problems like this. Tesla doesn't care.
ucmndd
Well-Known Member
Thanks for the input . I went ahead and did a hard reset and also disconnected the dc to dc converter…The warning light is off now..And to think Tesla wanted to charge me $550 to install a new Agm battery
12v replacement on a similar vintage Model S ran me $204 installed.
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