Tesla 12V Battery Options
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- čas přidán 2. 07. 2021
- 3rd in a series about the 12 Volt Battery in your Tesla showing you the options you have once it needs to be replaced.
Other Videos in this Series:
1. Why Your Tesla Needs a 12 Volt Battery:
• 1. Why Tesla Needs a 1...
2. My 12 Volt Battery Experience:
• My Tesla Model 3 12 V...
3. 12 Volt Battery Options:
• Tesla 12V Battery Options
4. How to Install a 12 Volt Battery:
• How to Swap Out the Te...
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Referral Code: ts.la/mike87152 - Auta a dopravní prostředky
if you really curious what I think: First, you calculated that Ohmmu battery would pay off after 5.16 years, but it is only true if the Tesla battery will last 1 year (you said it yourself that this is actually rare and usually it last about 3 years). My battery will be 3 years old in couple month and works like a charm When I had Honda, its battery last 10 (ten years). So, even if we take 2 years average 5.16 batteries will last more than 10 years. Second, Lithium and acid batteries have different charging parameters, so I am not sure that charging (and discharging) for Ohmmu will be optimal. And we all know how lithium batteries are sensitive for that. So, no, I better buy acid battery to replace. Probably Tesla eventually will start installing lithium 12V batteries in their cars, but I am pretty sure Tesla will change charging parameters accordingly.
Shouldn't be an issue really.
Without tearing one down to know, the ohmmu likely has a bms to manage the charging.
Also, being a LiFePO4 battery, those are often considered drop in replacements for SLA in most cases.
What would concern me is cold. Pretty sure that battery chemistry shouldn't be charged below 32f/0c
@@dorvinion True, it may have BMS, but probably acid battery may have deeper critical discharge voltage that triggers recharge. In that case no BMS will save the battery if it will discharged too deep for long and healthy life.
@@dorvinion ""What would concern me is cold. Pretty sure that battery chemistry shouldn't be charged below 32f/0c."" Cold isn't an issue with Ohmmu because of its Lithium-IRON Phosphate vs Lithium-ION.
you are correct. lithium chargers taper at beginning and end of charge cycle. lead acid chargers just pour it on.
Just going to buy the OEM battery for $85 and install myself every 2 years. I’ve replaced our gas car batteries every 5 years and since starting that, have never had a dead battery.
I agree! This makes more sense than paying $439.
The 12V battery warning should give the driver 2-4 weeks before the voltage goes below the operational limit.
Would calling roadside assistance have gotten the battery changed faster?
Beware of the Ohmmu battery if you have a Model X. They reversed the battery terminals on their battery, and it won’t hook up on a 2017 MX. Had to return it & buy a Tesla battery. It apparently fits some years, but they don’t tell you about the mis-fit.
My 12v went out on my M3 early @ 1.5 yrs of ownership. Warning ⚠️ popped up, shared with TSLA , and mobile svc swapped $0.00 same week 30 min under warranty. Will consider OHM 12v next time. Thx Mike great videos!
Yay new FTG video! Been waiting for this one
Great timing, our 12v just went out. It was still under warranty so we had Tesla changer it out. Next time I think we are going to go with the Ohmmu. Thanks for the video
at 6:21 you show a 5.16 year payback period. If you assume a 2-year lifespan on the OEM battery, then it's $85/2 years or only $42.5/year. Your payback period on the OHMMU is actually 10.32 years.
I preemptively replaced my M3P (Sept 2018) at 2.5 years with the Ohmmu. Unbelievable how light it is!
I called Tesla and made an appt when the battery light came on - they came two days later! The replacement battery cost my $128 dollars. I love my Model 3 -
Actually your battery cost $85, like he said in the video, the rest of the cost was labor. I would have just bought the battery and installed it myself, not like it's hard to do.
Mike, great video! I want to add some of the details of the 4 year warranty on the LION battery from Ohmmu (eg. 4 Years from Date of Purchase (no receipt necessary), 100% Full Replacement Coverage on performance failure of any sort). However, Ohmmu states that they will cover replacement units that are APPROVED BY OHMMU within 24 hrs of claim receipt and shipped within 24 hrs of APPROVAL. I wonder if they would deny a return claim under warranty when there is some charge remaining on the LION but Tesla warns of insufficient charge? That's the issue with warranty's, they have to be approved and most often the manufacturer has some issue with the return. Also, I'm not certain they cover shipping the battery back for their examination of warranty claim.
My Model 3 (currently in the shop after getting rear ended 😢) is almost 2 years old. 12v batter is ok so far. I think when I do have to replace it I will go with Tesla option. It’s cheap enough and I just feel more comfortable going OEM at that price. My wife has a 2019 Hyundai Ioniq and the 12v battery died. Thankfully it was covered under warranty because they charge close to $500 for a new one. I was pleasantly surprised to learn the Tesla battery was very affordable.
Thank for making these videos, very informative.
500 for Hundai 12v battery? that's over price. what they made inside? gold plate? dang...
@@makesaveinccomm yeah they wanted to charge me $479. 🤣
I don't have a Tesla however, it's amazing that I could actually just walk to a Tesla Service Station! Considering the next closest is about 1 hour away. That's pretty amazing! There is also a new Porsche Dealership opening up down the street from Tesla. Love that too!
My 4 year old M3 is still running well with the original 12V battery. When my extended warranty goes out later, I will go for the Ohmmu battery.
Another great video, FTG. Good for thought, as they say. Andre certainly something Tesla owners need to keep in mind. Out of sight, as they say, so not something most pay attention to until the moment it fails.
great content. thanks.
Here in Phoenix, my old Lexi’s car required a new battery every three years like clock work. The heat of the summer kills the batteries. Now I have a Model 3 and plan on replacing the 12 volt battery every two years.
I bought the lighter weight lithium Ohmmu just for weight savings after getting my spare tire. If you still have your stock battery you can reset the error code by disconnecting the negative terminal on the 12 volt battery then reconnecting. To properly maintain the 12 volt wake up the car once daily if the car isn't driven daily.
You didn't save much in weight. And you don't need to wake up the car daily to maintain the battery.
@@Resist4 Waking the car if not driven daily was recommended to me by a Tesla mobil service technician so that's what I shall do Dan LOL
@@Resist4 Waking the car up daily is not needed to maintain the battery because the car does that automatically. But it does likely reduce the depth of discharge that the 12v battery goes though if you don't drive your car a lot and probably reduces wear on the plates. I honestly wouldn't go out of my way to wake the car daily, but it is easy to do -- just open the Tesla app on your phone and let it connect to the car.
@@stevenhill3136 and yet service center people have told me lots of things that weren't exactly true, because they don't always get the latest info.
Third party seems like a good option (I'm 2.5 hours from a service center) and hopefully by the time I need to change mine 3rd party brands have more reviews out there to validate their claims.
Please do a follow up on your soft closing doors!!!
Thanks!
Interestingly enough, I bought my Model 3 in Dec 2018, never thought of the battery. That’s 3 years 3 months. Should I change the battery now, just in case?
Is it difficult to put the battery in yourself? I'm assuming service center won't do it since it's not OEM.
I bought a standard 51R at O’Reilly’s. Just lookup the installation procedure online.
My M3 is only a month old, so I don't forsee needing a 12V battery any time soon. When I do though I've already bookmarked the site to buy the Ohmmu battery. By the time I need a battery, Tesla may even have an official OEM lithium battery (like they do for the Model S refresh). And it's possible prices might come down.
Had my Y for a year. On the fence. Tough choice, but the more expensive lithium battery would mean less stressful occurrences of dead battery. That may push me toward lithium. Thx for info.
Save the money, and just buy a new OEM battery every year, if you have a concern about battery life. It would be 5 years before the money you spent on 5 OEM batteries equaled the price of one Lithium.
How much amp can you add on and not hurting the DC to 12 DC converter? I would go for LFP battery when 3/36 is out.
Will the new S/X lithium battery work as a replacement in the 3/Y? How much will Tesla sell that one for?
Hard to say if that would work or not, it just came out, and I'm not sure Tesla even sells that yet. I bet they DO start selling an OEM lithium battery for the 3/Y at some point though.
No, it likely won't work. That lithium ion battery has an additional connector besides the positive and negative cable connections. It might be to communicate with the car in order to control how it gets charged. So none of the other Teslas have that additional connection.
Bought my used 2016 X90D from Tesla in 2019, and almost immediately go the 12V warning. They replaced it under warranty in Aug 2019. Now Jan 2022 I get the warning again. I'm replacing it myself with the Ohmmu even though I still have a few months left on the Tesla warranty. Don't want to go through this again in 28 months.
Sir have you heard anything about the range with the Ohmmu battery? Thank you
Does it requires a special charger needed to charge the ohmu battery or a regulator is sufficient
I'll be keeping my Tesla for 5-6 years, definitely not past six years. When I hit the three year mark, I'll be proactively putting in OEM (LA) to make sure I'm worry free until the six year mark. Maybe by then Tesla or another supplier will have a cheaper offering for a lithium swap.
Exactly!
Which tires do you recommend for our Toronto winters on my model y Tesla
Do NOT purchase the Ohmmu battery, it is a waste of money as it does not hold a charge once its installed in your Tesla. I own a 2022 Model-Y and a fully charged Ohmmu battery lasts about 2 weeks after normal use. I contacted Ohmmu and they sent a replacement which also failed after 10-12 days. I was told the recent Tesla software update is what's causing the battery to drain while its parked, with Sentry Mode enabled. I decided to just reinstall my original OEM battery and the issue went away. 6 months later and several Tesla software up I decided to give the fully charged Ohmmu battery another try and as you would expect two weeks later the issue was not resolved 12v battery warnings resurfaced after 13 days. I'm sticking with my OEM battery going forward. Save yourself the $ and frustration. Would have been nice if it actually worked because the weight deference between the two batteries is a nice selling point.
Living in south Florida, I keep my garage air conditioned which may improve the life of my model Y batteries.
Not by much.
Fantastic decision, Mike! I like the idea of buying it ahead of time and installing it when it’s needed.
I had a Volvo 850 Turbo that had a terrible suspension. I purchased four Bilstein gas struts in the first months of Volvo ownership, instead of waiting for the struts to get even worse, plus the new struts have a lifetime guarantee.
The car drove so much better and I got to enjoy the struts for the entire eleven years that I owned my Volvo.
You don’t have to wait until something is totally shot to replace it.
Buying a new replacement battery to store until it's needed is really not a great idea.
Did you end up buying the battery in advance? How did you keep it charged? Thanks.
Buying and storing a spare battery may not be too beneficial unless you also buy a charger for it. Even then, the 1 yr battery warrantee starts the day you buy the spare battery. Also, there's the life of the battery ~4 yrs sitting on the shelf vs being under operating conditions?
Would installing an Ohmmu Li-Ion 12v battery allow the Tesla to have multiple after market parts installed? I have brand new headlights I bought that use the OEM connectors to the original headlights and are meant to be plug and play, but they refuse to turn on. My guess is that I have too many parts hooked up to my Model 3 2019, and it’s not drawing enough power from the OEM lead battery. When I plug my lights back in, they work with the OEM headlights, but do not turn on the new VLAND headlights for the model 3. Would buying this Li-Ion battery work?
Just curious. Will Tesla's battery failure detection work on the Ohmmu battery? It seems unlikely that the two batteries degrade similarly.
The battery failure detection doesn't care who manufactures the battery or what material it's made of. Only that it has the correct power specs.
How do I find a shop to install the OHMMU battery in my area( New Jersey)?
MPP have a kit with the excellent (from experience in bikes) EarthX too. Such a shame the shipping for either of these to Europe is a deal-breaker. :(
Is Tesla replacing the batteries for S and X with the new lithium battery ( which they use in the new model S and X)?
No, the new lithium ion battery has an additional connector that's used to communicate with the car. The older cars don't have that.
how many months and miles did your car have when the battery failed?
Question… in a pinch could you just get a 12v battery from your local auto parts store and temporarily connect it via say jumper cables to the leads (+-) to get your out of a jam?
As long as it can provide stable 12V power I'd think it would work, but if you do such a thing I would connect the fresh battery to the battery in the car, and NOT directly into the car's 12V system. The new battery might not fully meet the power requirements, and I'd be very leery of connecting something out of spec directly to the car's electronics. Using it to boost the existing battery shouldn't damage anything though, as long as it is extremely short term. One of those boosters people use to jump start ICE cars with a dead battery would probably work too. Once again, connected to the 12V battery and not directly to the car's 12V system. Definitely use a lot of care though, because damaging the electronics in a Tesla is a MUCH MUCH bigger problem than in an ICE car. Just make sure you are only using the battery/booster to charge the car's 12V battery...that way you only risk damage to a battery that is dying anyway, vs damaging the car's electronics.
Yes, Plenty of people use normal 12v battery. It is actually better than the one that is pushed here. The OHMMU battery has caused error messages in Tesla vehicles. The OHMMU battery has its own controller because lead acid batteries have a different charging profile than lithium batteries. The Tesla computer and OHMMU computer sometimes dont agree and it causes an error. OHMMU updated their batteries the last time it happened but I would just buy a size 51R regular or AGM battery and you will have no issues.
You can buy a replacement 12v battery for your Model 3/Y in any local auto parts store or big box store. Instead of temporarily using jumper cables to connect the new battery to the old one, just remove the old one using a 10mm wrench and put in the new one. The new battery just needs to be a Group Size 51R which is common in many Honda vehicles, and I would buy an AGM one because it looks like Tesla's charging voltages are for an AGM battery.
If you have jumper cables, you can get somebody (a good Samaritan) to let you jump from their car battery. You can use that to pop open the frunk and jump start the 12v system on the Tesla. Once the Tesla is awake, the high voltage battery will keep the 12v system going and you can drive the car. If you have to stop and get out, just use the Keep Climate On button to keep the car awake.
Cool to see that we have options. What I would have preferred though is that Tesla clears a space for a second battery, so that when the first one dies it can switch over and tell you to replace the dead one within the next 2-4 years, before the second one dies... For a part that is THAT crucial for the function of the car I would have loved redundancy...
There is a reason why this isn't done. A stored battery can go bad over time, even if it's trickle charged. Remember, chemical batteries are always in a state of decaying.
@@Resist4 I am aware of the downsides. But even a little positive effect is better than none... And if you don't want to do it with a battery, then do it with an array of SuperCaps. Just find a way to keep the car working at it's most basic level until the battery can be replaced. Come to think of it... With the 12V battery being regularly recharged by the High Voltage pack... Why don't we have SuperCaps in there to begin with? Capacity can not be the major concern in the 12V system...
An additional 12v battery also adds weight and reduces range (though it will be a small effect), as well as usable space. And there's no need for it if you know what to do when the 12v battery fails. I think its better for people to know how to handle the failure and know what battery replacement to buy at the nearest auto parts store.
@@TheNewAccount2008 Capacity isn't a major concern for the 12v battery if the car is designed around it (the new Tesla Model S refresh 12v battery is a tiny 6.9 Ah lithium ion). My concern with using supercapacitors is that the car will be charging them up more often, thus opening and closing the high voltage battery contactors to do so. I don't know about you, but I'd rather put wear and tear on the 12v battery that is easy to get to, jump start, buy almost anywhere, and replace (if you know what to do) than put wear and tear on the high voltage contactors that will be more expensive, dangerous to work with, harder to get to in penthouse under the rear seats, and not just anybody can work on.
@@android04 I would still much rather have the option. Weight is minimal, so range loss will be negligable. And space should also not be a major issue. In my case, only having that one car, buying the replacement at the nearest parts store might already be a problem if the battery fails unexpectedly. Overall it seems like a very minor adjustment with very minor negative consequences that gives you a lot of extra resiliance.
...am thinking among the biggest topics of discussion are difficulty reading the too small fonts on the display and control-arm repairs.
Amen to that.
Just a thought, could the 17 pound difference of the battery play any significant role in increasing range, since you are always 17 pounds lighter? Likely it's to minimal to make any difference, but thought it was worth the ask.
It does have an effect, but likely negligible and not really worth considering.
Can I do a upgrade to the 12v battery on my model 3 2019 LR? Can you do a video how to install it?
About to upload the install either today or Saturday.
It's not difficult to replace a car battery.
Can you still hook up a trickle charger to the 12v battery to charge it up enough to do something with it?
Possibly, but if it stopped working in the Tesla then most likely it has a shorted cell or it boiled off too much of its electrolyte. At that point its better to recycle it at any auto parts store (they even give you a small credit towards a new battery).
Why it can't go with nornal car battery? Mine is with common batery from several months.
The charge management system of a wet 12 Lead acid battery is totally is different than a lithium battery. What Tesla documentation allows this swap?⁷
Is the Tesla warranty 3 or 4 years? I am 2 months from hitting 3 years on my model 3 and original battery.
5 Years or 50,000 miles. Whichever comes first. I'm at 61,000 miles.
@@FrugalTeslaGuy Thanks. I'm only at 26k miles so guess I'll keep anxiously waiting for it to fail. Appreciate you making this battery series.
Also, it pays to check your battery voltage at the fuse box in the frunk. If the voltage with the vehicle completely off is below 12.4 V, replace it.
I don't know if it's the same thing, but you can read DC-DC output voltage in the ScanMyTesla app. My model Y reads 14.2V at "rest". I guess I should compare it to the actual battery voltage.
14.2V is the vehicle’s charging system operating, NOT the actual 12V battery voltage. A new 12V battery reads 12.6 to 12.7 V. A failing 12V battery reads less than 12.4 V.
I agree with measuring the voltage, but there is no fuse box in Model 3 and Y. Also, its a little tricky to measure the voltage on just the battery because once you open any car doors or the frunk, or unlock the car, it will wake up and turn on the DC-DC converter. The way to do it is to pop open the frunk in your garage and wait for the car to go to sleep (at least 30 minutes). Then turn off Bluetooth on your phone so you don't wake up the car if you get near it, and leave any keyfobs away inside the house. Then you can measure the 12v battery voltage, but it might read higher than normal due to the surface charge remaining on it. The more accurate way is to let the car sleep and wait overnight or multiple hours for the surface charge on the battery to go down.
Measuring just the battery voltage in situ is tricky on a Tesla. I have an MX, and I spent some time investigating it. Letting the vehicle sit for a few hours to “go to sleep” should work. I found that letting the main battery get below 50% charge also helped suppress the vehicle 12V charging system constantly operating. The highest voltage reading of the battery alone should be 12.6 - 12.7 V, higher than that is the charging system.
when the times comes I will more than likely get the OEM battery from Tesla.
OK for those who have mobile service available! In Australia it’s only if you live within a few miles of one of the half dozen SCs on the continent! I’m only 230Km from a SC but no mobile service….
We are in New Mexico USA and 200+ miles from a service center in Texas. The mobile service came to us same day!! Hope you can get that where you live!
@@deborahokon3350
No! There ain’t none!
You can just replace the 12v battery with a Group Size 51R battery that you should be able to find anywhere that sells car batteries. That size fits and works on the Model 3/Y and is common in many Honda vehicles.
@@deborahokon3350
Just shows how advanced Mexico is compared with Australia.
My battery died when i was driving only 9 months old and no warnings. Lucky I am not on highway or couldn't write this message anymore
The OEM battery (vs the Ohmmu) is like storing a couple bowling balls in your frunk. EV range is impacted by weight.
$439 is so not worth it! At that price you could just buy a new OEM battery every year for 5 years. And the odds are that most people won't keep their cars that long before trading it in.
Sorry to be that guy, but your Math is wrong.
Tesla battery: $85 for 2-4 years = ~$21-42 per year.
Ohmmu: $439 for 6-8 years: ~$55-73 per year.
It never pays for itself (besides saving you 2-3 times more the hassle to have to change it with Tesla's).
The one way Ohmmu is cheaper is if you get very unlucky and the battery fails after just 1 year. Then the 4 year warranty versus the 1 year warranty is definitely an extra piece of mind.
There is always the possibility that Tesla also in the future offers Lithium option then you have option to upgrade with Tesla.
Yeah, came to say the same thing. Frugal Guy's math was wrong here. He was assuming the OEM battery would fail after one year, I think. If the OEM battery lasts 3 years on average, then the $85 OEM is definitely the way to go.
Yeah, that was a bit cringe worthy. That 5.16 is the multiplier, but the "years" result would have been "between 10.32 and 20.64 years", so Ohmmu is short at least 2-4 years.
You guys beat me to it....it was a very good video, but it isn't right to assume a yearly failure of the OEM battery just because it has a 1 year warranty....
I just got the same battery for 373.00 on Tesbros with a 10% off coupon. Will arrive next week
Sorry Mike, this video disappointed me. I was hoping for some battery options other than the Ohmmu and standard Tesla OEM battery. Do we have any other options from another battery or auto parts retailer???
I have Ohmmu battery installed on my RAV4 Prime. I purchased it for my previous Model Y ended up selling the car but kept the battery. The Ohmuu will work on most cars.
Get a battery from AAA?
My battery lasted more than 6 years.
My oem battery is approaching 2 years. I was thinking about buying the ohmnu battery keep it charge, however I don’t really know the “shelf life”. What if my OEM last anothe 2 years?
It could. But you never know. 🤷♂️
The LiFePO4 battery (that's what's in the Ohmmu) will be fine if you store it around 50% charge and top it off to the same level every 6 months because it will self-discharge slowly. But it does age based on time (called calendar aging). So if your OEM battery lasts another 3 years, that's 3 years worth of calendar aging on your Ohmmu (and 3 years less on the warranty). As for how much the calendar aging reduces the capacity of the Ohmmu, I don't know the anwer but you can probably Google the effects of calendar aging on LiFePO4 batteries to see the effect.
Check
A friend asked me to 'jump-start' their gas car. I said no because I have a Tesla EV. I have no idea how to do that and I would not want to do it. Has anyone done this?
You would do it the same as with any other car, but the Tesla Owner's Manual warns against doing this. The battery that Tesla uses is not made to deliver a large amount of cold cranking amps for bigger engines and can be damaged. There's also a tiny amount of risk that jump starting the other car could cause issues with the Tesla electronics.
My question is will the car DC-to-DC (battery-to-battery) charging system ignore attempts to charge the Ohmmu lithium battery?
Why would think it might ignore the lithium battery?
No, it will charge it up just like the lead acid battery.
The upgrade to Lithium (LiFePo4) battery is very definitely worth doing. Unfortunately, the pricing is at a premium.
Eventually, the LiFePo4 batteries will come down in price and make the decision to "go Lithium" a No-Brainer.
The price makes it so not worth doing.
Who came here from the Frugal Bugatti Guy channel?
Tesla wouldn’t let me buy it they wanted me to tow the car there or have mobile service come change it out. I live two hours away and it would be two weeks for mobile service. I already gutted the frunk and got the old battery out I just needed the new battery but Tesla wouldn’t sell it to me. I ordered to ohmmu battery 1 day shipped, I’m pretty upset Tesla won’t let owners change out their own battery.
Not a bad idea when your battery is getting long in the tooth to buy one and keep it charged and on hand - if you have a charger.
Why? You wouldn't do that for an ICE vehicle. Besides, by the time you needed that extra battery that you've had trickle charging for a few years, now it's lifespan has been reduced.
@@Resist4 Note I said "long in the tooth", i.e. getting close to when it might die. If the 12v battery I need is not carried by the nearest AutoZone or O'Reilly's (as are all ICE batteries) I think it might be prudent to order early and have on hand for a quick swap without waiting a day or two (or possibly longer) to get it from Amazon.
@@iowa_don Nobody has any idea when it might die, so you'd just be guessing. And you can buy a replacement battery at an AutoZone or O'Reilly or any place that sells car batteries. It's a Group Size 51R battery like is used in many Hondas. I'd buy an AGM battery because it seems like the charging profile Tesla uses is for an AGM.
I just don’t see the point in the lithium battery. The math isn’t mathin $125 to install the OEM battery replacement even every three years is still cheaper than buying the other
You just need to buy a car battery with ‘group size’ 51r
Your math does not support your assertion that the Ohmmu battery pays for itself in 5.2 years. The math that you show would only make sense if the Tesla battery lasted only 1 year.
Definitely stick with OEM battery…mainly because of price and car is still under warranty 🙂
A different brand of battery doesn't effect the cars warranty.
@@Resist4 I think he means that it's free if you are still under the vehicle warranty. But you are right that an aftermarket would not affect your warranty. If there's ever any electrical issue that Tesla might suspect was caused by an aftermarket battery, you might have to install an OEM battery for them to work on it. But it won't void your vehicle warranty.
$439 forget about it.
why not just DIY one? it is not so hard.
Your battery math is flawed. $439 ÷ $85 = 5.16 batteries. Not years. Your math assumes an OEM battery life of only one year.
Too much money. You can buy 4 Tesla batteries. Or even an AGM form Costco for $170.
Using the words “Ohmmu battery” and “O.E.M. battery” in the same sentence-let alone same video-sound awfully identical to my old ears (admittedly, at 1.5 playback speed...).