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12V Battery Replacement Outside of Warranty

AnitaToronto

Member
May 8, 2013
81
5
Canada
This is my first warning of my 12V battery needing replacement after warranty ended. I have a few questions for those that have done it.

Can this be done myself? Where do I buy the 12V battery if I can?
How much does Tesla charge for this service?
How long do I have from the first warning (yesterday) until it actually dies?

Thanks in advance.
 

CFinVancouver

Member
Jun 3, 2016
97
70
Vancouver
I had mine replaced in the last year, 2015 modelS with dual motors. I had Tesla change it in the shop, 35 cdn labour, plus the battery, was about 250ish. I made the appointment soon after the message and it was changed within a week or two. Can't seem to find the receipt, otherwise I would be more specific. They did want to charge me a diagnostic fee, but I declined it saying it just needs a new battery, not a diagnosis.
There is some software that have to check with the older cars and a new battery. I was fine letting them do it for that price. There is not a satisfactory 3rd party battery as far as I know.
 
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srlawren

Member
Aug 3, 2020
576
375
Vancouver, BC, Canada, Eh?
I had mine replaced in the last year, 2015 modelS with dual motors. I had Tesla change it in the shop, 35 cdn labour, plus the battery, was about 250ish. I made the appointment soon after the message and it was changed within a week or two. Can't seem to find the receipt, otherwise I would be more specific. They did want to charge me a diagnostic fee, but I declined it saying it just needs a new battery, not a diagnosis.
There is some software that have to check with the older cars and a new battery. I was fine letting them do it for that price. There is not a satisfactory 3rd party battery as far as I know.

@CFinVancouver $35 CAD for labour is surprisingly decent! Don't have a Tesla yet, but just had to replace the 12V in my 9-year old ICE car (second time, about 4.5 years between batteries) and Canadian Tire charged me the same $35 for labour. I'm surprised Tesla isn't more.
 

AnitaToronto

Member
May 8, 2013
81
5
Canada
Thank you. Mine is a 2013 model S RWD (can't believe I've had it almost 8 years!) If I can't easily obtain the battery, I guess I'll go to Tesla. I was worried it was going to be like $1000 or something.
 

Kaveman

Member
Oct 27, 2020
24
9
FL
Take a Look OhmMu Batteries. A bit pricey, but will outlast the Lead battery you'll get at the SC. I bit of a PITA to replace on an older MS, but can be done if you have some mechanical skills. Y0uTube has quite a few vids on how to swap.
:)
 
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CFinVancouver

Member
Jun 3, 2016
97
70
Vancouver
210.00 for the battery, 35.00 for labour. This was done October 2019 on my 2015 model S 85 D.
No sense comparing ICE battery to Tesla battery for lifespan, they are two totally different applications.
 
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Lon12

Member
Oct 12, 2015
840
1,040
Calgary, AB, Canada
So did you do it yourself? Where did you eventually get it? Mine's 2013.
No. The ranger came out to my house and I watched him change it. They replaced the 12V twice under warranty.
$35 for labor is a great deal. It took him quite a while to take the tub out and then get at the 12V. It is hidden in the upper right side under the cabin air intake.
TeslaS12V.JPG
TeslaS12V location.JPG
 
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NickFie

Member
Sep 28, 2017
528
570
Near Philadelphia, PA
B05AA855-BC8B-4087-AF17-0C5A85FC5E5E.jpeg
This won’t help Anita, but battery is more accessible on newer Model S. I watched one or two YouTube videos before installing an Ohmmu in our 2017 S 100D.

Methodically disassembled. Should have put numbered labels on trim pieces so I could reinstall in proper order. During reassembly I had to pull off one or two pieces to install the one I overlooked.

I’m insufficiently obsessive. Didn’t power wash the area while it was accessible.
 
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Duckjybe

Member
Mar 29, 2012
815
189
Ontario, Canada
Something that motivated me to act was a message saying I could not update the firmware until the 12v battery was changed. I guess it would be bad for the 12v to die completely during a software update. Mobile service swapped mine out on the Model X for $88 labour $210 for battery.
 

##BroadRipple

TSLA fan.
Aug 9, 2017
52
19
Indianapolis
Something that motivated me to act was a message saying I could not update the firmware until the 12v battery was changed. I guess it would be bad for the 12v to die completely during a software update. Mobile service swapped mine out on the Model X for $88 labour $210 for battery.
Was your warning triangle red or yellow?
 

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