Installing an Antigravity Battery In My E92 M3 

The only thing missing, in my experience, is half way through struggling to get the battery out, my wife comes out and asks me if I like the color of the fabric for the sofa.

“It’s a battery install” “No problem, quick and easy” BMW - prepare to cuss.

This is a classic example of how what is normally a simple job on most cars turns into a small project on a BMW. LOL 🤙

This was the first time I heard Matt swear. I will savor this moment

Never have I laughed so loud at a battery change

This is the realest DIY video I’ve ever witnessed on RU-vid. Bravo for the undedited video.... this is me very single time I attempt something on my car. Good stuff!

I knew this video would be entertaining when title is installing a battery and it’s length is 31 minutes.

Ain’t no fumble like a Matty fumble😂. Appreciate you keeping it real Matt and proving it’s never straight forward.

This was seriously the best video ever. “I’m about to break stuff.” Breathe Matt.

@14:51 “Get outta here bro” 🤷‍♂️😂😂😂

Thanks for the shout out Matt! Just wanted to answer a couple of the questions you brought up as well. In regards to sizing a H6, H7, H8 are all the same in width and height and just get longer in length consecutively. Many of the European makes(BMW, Porsche) allow for multiple sizes and you'll generally be able to see the adjustable mounting cleat or hardwardware..but of course always easiest to ask...In regards to capacity and programming, if there isn't a lithium profile option then yes, go with AGM and the closest Ah capacity option, this profile should fit right into the parameters that best suit the battery and charging system for the car. If anyone has any other questions for us feel free to let us know at chad@antigravitybatteries.com

At first, I'm thinking how nice and clean and easy having the battery in the trunk. Then I keep watching and I'm thankful for my battery being under the hood upfront and easy to reach. One of those projects where you end up using every tool you own. It's always funny when it's someone else. We've all been there when working on our vehicles.

Matt. I love you saying “god dang it. This suppose to take freaking two second and now i am sweating” Just like me doing any DIY stuff haha deje vu.

The fumbling made this one of your best video's, good stuff OG.

Matty trying to keep it PG makes it 10X funnier! 😂😂

The factory battery you took out is a AGM (Absorbed Glass Mat) lead-acid battery. The battery you put in is Lithium. You might want to reconsider the registration process. Also, if you ever put a charger on the new battery, make sure it is set to "Lithium" and not "AGM". (BTW, I am the original owner of a 2008 M3 coupe with 18K miles on the odometer! Matt wouldn't like it because it is Grandpa Silverstone.)

Traditional Lead-acid batteries can deliver half of their total capacity, and agm about 70%. You had a 92Ah installed, meaning 46Ah of usable energy if it was lead acid, or 64Ah if it was a AGM type. You should be good with a 60Ah lithium battery, because they can discharge at 100% of rated capacity.

Thank you for the great video Mat. I spent the first 10 mins thinking I'm glad I haven't got a BMW and the rest just laughing my ass off 🤣

Vehicular DIY has the best BMW E9X Installation video.

When push comes to shove, you get into the back seat and pop out the ski pass thru piece. That should give you access to the glow in the dark handle in the trunk. Back in the day, I had a 535is. Best car ever. Expensive to keep, though.

"Battery's should be a simple job" said no bmw owner ever.

oh man. this is gold lol!!!! only matt can be confident in struggling for 30 mins for a battery install. I can relate.

Always an adventure with Matt regardless of what the project is

can't wait for the sonic toolssssssssssssssssss!

We have all been there Matt. I would have had the entire trunk apart and the rear wheel off. Lol. It’s part of the fun though. Thanks for the video.

Me: Honey its a simple 1 hour job. *8 hours later Wife: You want dinner? Me: *sobs angrily

Something you need to know about alternators, They are not designed to charge a discharged battery. The alternator is meant to run the car. and to keep a charged battery topped off,A alternator is not a battery charger. If your battery dies, you need to charge the battery. If you try to charge a dead battery from an alternator, it full fields the alternator, shortening it's life. And if you want the best battery available regardless of cost, then you need to look at odyssey battery

Matt, with respect to capacity. For flooded and AGM battery’s only 50% of the stated capacity is usable as the voltage drops too low to crank beyond this point. For Li-Ion you can use nearly all of the capacity and still crank, so real world capacity for 60Ah Li-Ion is greater than a 90Ah AGM. HTH

Magic to see normal comments - when you mention always being worried about getting a shock from battery. Same here! Even though done heaps more in depth work on my car, just one of those little things.

Huge thumb's up! THIS IS LIFE FOR YOU FOLKS AND BY THE LOOK OF IT, I'M NOT THE ONLY ONE STRUGLING! Thank you for putting something real!

Not gonna lie. Owning an E60 M5 with SMG. You know, the badass sibling money pit from that generation. I am so happy to see how easy it is with the M5 compared to M3 to change battery. Literally raise floor board, unscrew connectors, and bracket screw. That’s it. The M3 on the other hand. Damn.

This might be my favorite OG video. Uncomfortable to watch, but completely relatable

I had to rewind it - he actually let loose a curse word and they bleep’d it 🤭🤣

I’m sorry for your suffering Matt... however I appreciate (and laugh) watching someone else have the struggles I typically have.

It was like watching the Incredible HULK change a battery on a BMW M3. #Smash

LithiumMoto has the same type battery with 2ndStart function in either 60 OR 80Ah H6 size for a LOT less $$$

Owns every tool known to man. Still can't replace a battery on a BMW. (I've been there and ended up towing it to a mechanic)

To undo the weight distribution foepaw: buy a carbon fiber hood then paint the top body color(please get the 50:50 weight distribution back, I need it🤣).

These bad boys are about 700 bucks!

Thanks for the entertainment tonight Matt This battle with the battery was really one of your golden moments!😄

Guys Matt swore this is a monumental video

I was hoping you would bust out a Milwaukee ratchet for this install!

Literally took me an HOUR AND A HALF last night to put on a license plate cover. I feel your pain. :/

It’s funny I’m an Auto Technician by trade and I installed a battery in my cousins M3 last week and after 20 mins had the RU-vid video dialed up! It happens to us all Matt

Not sure you want to pick AGM as the battery type. Reason I say that is in the Porsche world picking AGM tells the ECU to up the voltage on occasion, especially when cold (not really a problem for you). The Porsche ECU has a setting for lithium, and that stops the high-voltages, that would cause damage in a LiFePO4 battery. if you ever find the battery momentarily cutting out, it is likely from too high a voltage (IIRC >15.2 V). If that ever happens, check the Porsche forums, Anti-gravity has some good info there. If memory serves me correctly, the ECU might call for a slightly lower cold charging voltage for a regular lead acid vs an AGM.

the antigravity battery fried my alternator recently after installing. i have no idea why but keep us posted on how it goes

This video gave me a good laugh!

This is the best, I looked into doing mine myself and I just sucked it up and had the dealer do it because buying the coding software and a battery is almost the same cost, time is money and well they won out. It also didn't help I took it in for a recall and it died in the service bay (11 model with original battery)

if matt think it was painful for him to remove the red terminal module on the battery, just know that its more painful for us BMW owners to watch because we could do it in literally 2 seconds. If he rotate the the module around the terminal and it will slide right out lol

Matt, my OCD thanks you for addressing the near 50/50 weight distribution (even though in the real world its probably negligible 🤣)

Why am I barely seeing this video, this is gold lmaooo

Hate to watch you struggle with something that should be straightforward but it's nice to know that it isn't just me that struggles with this "simple" stuff.

In my experience, the E9x M3 batteries go out every 4-5 years if you do not put the car on a tenderer. I don't know if I would want to spend that much on a battery knowing that I already replaced the battery twice in my 10 years of ownership. I can see you feel my pain from lifting that huge battery out of the tiny hole in the trunk. It takes some muscle and finesse to wiggle it out.

This may have been the most hilarious video I have ever seen. This battery takes maybe 10 minutes to change, if you know what you’re doing. Watching it thru was almost torture!

This is hilarious -- youtube stars are just like us

Simplest of jobs take the longest. I needed to change the gaskets on my door handle which was one big philips head screw. Should take no more than 5 minutes. Took a couple hours as there was a change to the door handle that isn’t noticeable without the gasket. It’s always something.

Why don't you code out that annoying dinging?

They’re junk. Ordered one for my 991.1 GT3. After install started throwing crazy codes, and voltage was all over the place. Rather than admit it was a piece of junk, they said my GT3 was not compatible with their battery - the same model GT3 that many people have installed them in. Original battery had already been recycled, so I was out shipping on the AG battery and had to buy a new normal battery even though the one I took out was fine. Buyer beware...

I think the other 30amp is the back up storage to start from a dead battery.

I hope you have a better experience with lithium than I did, never used these but they seem to be to early for there time.

I believe the H6 isn't the correct size for your car comparing it to the stock battery size. From what I see off of Antigravity's website, the H7 and H8 are also the same width of the H6 at 7 inches so an H7 or H8 would've probably fit better for your car and match up better with the stock mounting hardware.

Matt hit up Liteblox, they make SUPER TINY lightweight car-batteries that can be monitored (and even completely turned off) via your phone! Propper German Engineering and they use them for both racing and daily usage

i knew getting popcorn for this would pay off when i saw its half an hour for a battery change

one thing you can do is have a Ctek charging port accessible from the outside of the car like hide it under the bumper. but i dont know if the ctek chargers work good with that battery so might be worth looking it up

Now, you just tempered with the factory weight distribution, handling wouldn't be the same with 40 pounds less in back the rear's gonna feel loose. Remembered the dialogue from "the transporter" extra weight means the custom koni shocks I installed for this job will not give us the advantage. lol

Ole Matty letting loose lol thanks for the laugh man

I just put an antigravity on my rig and it’s awesome

I've had the locked out dead battery problem on my e92 my solution was to take the passenger front wheel off and remove the inner fender liner. it leaves just enough space to sneak jumper cables into the engine bay and get them clipped on.

Sorry Matty, but it’s fun to watch u struggle like the rest of us sometimes.

Should have used the Milwaukee battery extractor

A worthy upgrade simply because it will be easier to change next time

Wow look a the Color of that Sonic Tool Cart! 🤩

I think the correct battery would be the H8/Group-49 for the e92.

Lol remove all trunk panels its easy and you have more room to play with. Takes extra 10 mins :p Love your m3

Thank you for reality. I thought I was the only one that says “gonna start breaking stuff”

Hi Matt , Hmmm I don’t for sure Matt , I have heard in the forums that changing the AH size for the particular car can make things go quirky down the road, but then again you registered it telling the car you changed the ah capacity , this is to keep it safe from over charging the battery vs the 105 ah

Hey Matt, you were thinking of a slim Jim to open a locked door unless you had a Ford back in the late 80s early 90s you could very easily unscrew the antenna without any tools and actually pop the lock with the cars antenna I could do it in seconds not to worry I only use my powers for good. Not 100% about the battery fob are you saying you can’t put it in the glove box because if the battery dies you can’t get in the car if that is the case will the battery fob fit in a hide a key just a thought battery is cool expensive but cool stay safe🇺🇸🇺🇸🇺🇸🇺🇸👍

Use the Sonic sledgehammer. These things practically change themselves.

This vid made my day, thanks Matt! keeping real

Dude, you have had MANY BMW's. You should know NOTHING is a simple install.

Pretty cool you just made this video. Last night I was just thinking about buying one of these for my Cayman. Get out of my head! Lol

My M2 Comp Battery is right in the middle of my trunk - very easy to get to.

Exactly what I went to the dealership to get a new battery. That’s no Bueno

Hilariously comical. Yep there's a bolt. Lol 😂

After driving the car for a bit, what are your thoughts? Any issues at all? Is the battery monitor app useful? Thinking about picking one up for my FD3S.

This brings back nightmares. I used to be a manager for jiffylube and I ended up doing all BMW and Mercedes due to no one knowing how and they sucked.

I came here for information on and a review of the Antigravity batteries. Imagine my disappointment. Editing can be your friend.

When it comes time to replace mine, I think I'll pay BMW "whatever" they charge to do it!

Sorry, but I loved watching your struggle, lol. Very relatable.

Well that was nice and relaxing to watch.......

Is this the first OG video with beeps?

LOVE the new outro music!

You really need to look into the M Performance Steering Wheel best investment ive ever made for the track

Only issue I can think of is the vehicle thinks it has a different battery in it so the charging system operates incorrectly for the application

anyone know how they installed them at factory - I guess one every 45 seconds (ish) 🙂

The metcoms are comfy. How do cope with the Heal sound when walking on hardflors. It drives me nuts. Clonk clank, clonk .

Personal favorite moments 8:43 9:50 11:10 11:30 11:48 12:38 14:18 14:50 15:00 15:59 17:27 18:15 20:03 20:35 21:00 21:45 22:09 23:27 23:45

+ connector “Where u want me to go” 😩 😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂

Lithium is typically 10x of agm on ah

Who needs kettle bells when you can just swing that battery