Tesla Model Y - 12V Battery Installation (Ohmmu)

Learn how to swap the 12V battery in your Tesla Model Y (procedure is for 2020-2021 models).
Upgrade your battery with a 12V Lithium Iron Phosphate (LiFePO4) battery from Ohmmu!

We show you how easy it is to swap the 12V battery in your Tesla Model Y and upgrade to the best Lithium 12V battery for your Tesla!

The Ohmmu 12V LiFePO4 battery is lighter, more efficient, higher usable capacity, and lasts 4x longer than the OEM battery from Tesla.

▬ Contents of this video ▬▬▬▬▬▬▬▬▬▬

00:00​ - Intro
00:21​ - Step 1: Install Overview
00:57​ - Step 2: Benefits of Ohmmu 12V Batteries
01:37​ - Step 3: Safety & Tools
03:48​ - Step 4: Powering Down
05:05 ​- Step 5: Battery Removal
05:27​ - Safety Reminder & First Responder Loop
10:19 - Battery Weight Comparison
11:05 - Step 6: Installing New Battery
13:10 - Important Reminder - Reconnecting First Responder Loop
16:34 - Outro and Support Information

▬ Additional Support ▬▬▬▬▬▬▬▬▬▬

Live chat available or contact us by email

[Lonerider]

Thanks for the instructions here, very helpful for updating the battery in my Model Y. I did the battery update today (12/11/2021) and I have a couple of comments that might be useful. First, it would be very nice to see more close up camera detail of disconnecting the HV loop connector (passenger side, under the frunk cover). I did manage to get it done, and the words in the video were helpful, but a nice camera shot of the detail of the connector coupled with its removal would've been much appreciated. Secondly, at least on my 2020 Model Y, the actual positive terminal battery connector required an 8mm wrench/socket to remove. So, tools needed are both 10mm (for the battery holddown strap and the negative terminal) and an 8mm (for the positive terminal) wrenches. Third, I think it is much easier to ensure proper placement of the terminal spacers if they are installed while the battery is out and sitting on the floor (rather than sitting in its final location in the frunk). Finally, I think you might also want to show the driver's door window being rolled down prior to proceeding with the battery swap just to emphasize this step.
Again, thanks for the video and it was very useful... I actually generated a printed out step by step checklist that I took to the garage to ensure that I didn't miss any steps and that worked well for me.

[MUFCXI]

Excellent video. Ignore everyone complaining about the angle. Im 99.9% sure those people have never changed a battery in their lives. It’s incredibly simple once you get to the area by unscrewing the hold down bolts to loosen the battery from the tray. Then you remove the bolt from the bracket and voila, that is it. It’s using common sense.

[waterbuoyish]

Well done. Superbly detailed instructions.
Of note, part way through I went to look at my 5 month old Model Y and, sure enough, the orange notification tag was NOT visible from the time of sale. It is now. Agree that it should be there.
However, going to your site, I learn (and then confirm) that my 2023 Model Y already has a Li Ion battery.
Props to OHMU for all this good info.

[CarGuynAZ]

Thanks Sean it’s Jason @ Apex Autosports you did a great job with this video it was super helpful just got the battery switched to ohmmu thank you!

[thomasappelbaum]

Thanks, saved me money and time not having Tesla do this. Best!

[anotherdayinparadise]

Very good instructions! My sister's battery died on her Model Y and wish we had time to buy the OHMMU battery as we needed it fixed asap. But we'll upgrade it anyway in a short time soon.

[DrAnnMusgrove]

Thanks. You made the 12 volt lithium battery swap easy!

[DavidVAmendola]

Just subbed. I have peace with your presentation. Ordering soon. Thank you.

[nancyfuller]

Great instruction for Model Y. Thank you!

[stkyrce]

I had this video playing and went to watch a different how to video. Installed my battery and came back and this video was still playing.

[senorblick]

This video came in clutch today. Thank you for the detailed steps!

[olocks]

I want one but I’m scared from all the issues I’ve seen online where people say the tesla doesn’t charge the battery and it can die and also errors saying battery needs to be replaced, is there a fix now ?

[mikemurphy]

Thanks for the video. Will you be making one for the Ford mustang mach e?

[datasciencesauce]

Thank you for this! This is extremely helpful.

[Jere_miah]

Don’t buy ohmmu 12v battery. That costed me $640 to fix the low voltage battery replacement message. Fortunately return window still open and returned the battery but they charged $38(return label) + $90 (restocking fee). My 20 mx working fine with original battery. Here’s what Tesla said Technician inspected vehicle for customer concern. Technician found upon
inspection that the low voltage circuit of the 12 volt battery that vehicle has an aftermarket lithium
battery that is causing the LV battery repeatedly overcharging. The LV battery has degraded over
time and needs replacement with a proper lead acid original equipment battery.

Don’t waste your money and time.

[emreozermis]

Thanks for sharing. What is the capacity and cca of the lead acid battery?

[tomsekerchak]

You really need a better camera angle so we can actually see what you’re disconnecting and reconnecting.

[oliverroliva]

I just received my Ohmmu battery yesterday for my Model Y. Installed based on the old Model 3 method. hahaha. This method would have been alot easier!

[andrewmariette]

Your help is highly appreciated
My tesla is model Y 2021 but out of region “out of usa”
Not Hepa filter one
How to disconnect the red connector, the video is amazing, but I am not able to disconnect the red connector for the big battery
Please advise

[michaelabsher]

Its pretty clear the people who make a replacement made the video, some things are slightly over done, like how heavy the battery is. They are good points, but, I don't need the "ugh" when pulling the battery up.
I need to put a new one in, might go with a Lithium, might not. My Mini Truck used about the same size battery this has, but I put a lithium in its place. There are for sure upsides (lighter, longer lasting, able to deal with drainage while sitting better).