Watch this BEFORE replacing the battery on your Porsche 911

[@geoffrohrer6223]

I have read a lot about needing to code the battery to the car for Battery Engine Management system, even for Lithium Ion batteries. Curious if you ended up doing this or not?

[@eric.frasch]

Tip: You can buy the Anti-Gravity battery from FCP Euro with their lifetime warranty so it will be your last battery you need to buy for the car.

[@TommyLGarage]

But the weight !

[@eric.frasch]

@ sorry, I wasn’t clear, but you can buy the Anti-Gravity battery, so you can save the weight and save money long term.

[@2fast2nick]

That is more than a tip, that is a Pro Tip! I never even thought of that

[@ScottPC]

Tape the receipt to the side of the battery... You'lll thank me in 8 years time for that replacement!

[@JetFuelOnly]

Wow lifetime? Nice? Thanks man. Car is looking good

[@J.C.J-z2x]

I did this a couple months ago on my 992. I haven’t recoded and haven’t seen any issues, but reading the comments maybe I need to. For the comments about changing the weight distribution, note that at least for the 992 the T was originally spec’d with the Lithium but porsche had quality and or availability issues and dropped it, I do not therefore believe that there is any real issue with changing the handling dynamics for the worse. The jump start feature is really cool. I didn’t read the insurrections on charging initially and the car died on me the second day, the jump start saved me quite handily. Since then the battery has been flawless. Tommy - the toolkit you linked is imperial, shouldn’t you recommend metric?

[@johnm5131]

that is a great looking 911!

[@TommyLGarage]

Thank you!!

[@mrchinohills2778]

Excellent video! Since this battery is lithium ion, how does the need for trickle charging change things for less-driven 911s?

[@nycshelbygt500]

You need a Li-Ion charger from CTEK. They have kits so the wires are installed for easy plug and play charging.

[@TommyLGarage]

That’s right. A lithium ion trickle charger works well. I have the one that I use linked in the video description.

[@timking2822]

Beautiful car. Lithium batteries are heat sensitive, so be aware for other vehicles where the battery is under the hood with the engine.

[@TommyLGarage]

Great point! Luckily the engine is in the rear

[@bryanc1978]

you should code in the new battery. It’s usually fine if you don’t, but occasionally can cause the car to throw a code (can read about it on rennlist). Ask me how I know 😅

[@TommyLGarage]

So I have not had any issues, but I will look into it. Thanks for the heads up.

[@krisfoster1684]

There’s a special coding for Lithium. Under continuous high RPM load it can fail to hold its charge correctly. It’s worth just getting done when convenient unless you live at red line.

[@bootneck401664]

Yeah definitely get it coded in as it needs to be talking to the start stop function amongst other things, failing to code it can cause the battery to last only around 12-18 months.

[@J.C.J-z2x]

@@bryanc1978 FWIW I asked antigravity about this and they said no need. They say the battery is made to work as a drop in replacement to lead acid in the car. Idk.

[@bryanc1978]

@@J.C.J-z2x I'm not sure about specific coding for a lithium battery. But, in general, it's a good idea to code in a new battery. Occasionally a newly installed battery will make the car throw a code (i got a code in my 2018 991 for low voltage in the emissions system). This is my main point.

[@johnwillyn]

I got a "⚡️system fault" warning yesterday while driving my car and now a lot of things stop working like convertible top, DRL, reverse light, trunk and fronk switches next to seat (fronk opens with remote but not way to open trunk), rear spoiler stuck in up position, inside cab switches illumination is gone, footwell lights gone. Some people said thats a battery issue but the car starts fine its a 2014 boxster. Do you think that can really be battery related? Please help😢

[@TommyLGarage]

It definitely sounds like you are having a battery issue. Very common with old batteries.

[@gtmachine6134]

You need to recode the BEM to let the car know there is a lion battery installed. It will help make the charging system more compatible with the lion battery. It helps with longevity of the battery. It will change the charging and monitoring profiles of the battery.

[@Just_Drivers_Cars]

It has another great feature. When it goes bad, it freaks out your car - McLaren style. Brake faults, infotainment gremlins, steering faults, ABS faults, anything that depends on voltage goes nuts. How do I know? It happened to me on track. Scary!! OK, the car sat for a bit without a trickle charger, but sooner or later they will all go bad. I'll never use one of these again.

[@johnwillyn]

I got a "⚡️system fault" warning yesterday while driving my car and now a lot of things stop working like convertible top, DRL, reverse light, trunk and fronk switches next to seat (fronk opens with remote but not way to open trunk), rear spoiler stuck in up position, inside cab switches illumination is gone, footwell lights gone. Some people said thats a battery issue but the car starts fine its a 2014 boxster. Do you think that can really be battery related?

[@Just_Drivers_Cars]

@ mine also started. It’s weird. I can’t say for sure, but it’s likely.

[@Morris-gy3fi]

Very informative 👏

[@TommyLGarage]

Glad it was helpful!

[@FlatSix981]

What settings do you use for that battery when registering it to the car, so the alternator knows that it’s a new battery and what type it’s charging?

[@TommyLGarage]

No need to register it

[@TheEddysGarage]

@@TommyLGarageyes you do or it will charge it like a lead acid. just as you had to use a Li specific C-Tec charger you need to tell the car to charge it like a lithium.

[@aaronbell5743]

Curious why you have to have a special charger to first charge the battery when the car doesn't have a special charger on it??

[@TommyLGarage]

I don’t follow. All I said was that it’s best that you fully charge the battery so you don’t get any issues when you put it in the car initially.

[@jimg2812]

@@TommyLGarage Pretty sure he meant why a special "Lithium" charger and not just a regular charger as that's what the car is doing charging anyway.

[@ac24z]

I imagine the car's battery management system detects the lithium battery and adapts it's charging accordingly.

[@jefflethuman9794]

Car is ground so ground wire touching car will have no effect. How does the car know about voltages for bulk and float for the lithium? It is programmed for AGM and lead acid which are different from lithium. My solar inverter requires different settings for each type to not damage the batteries.

[@DaveJoseph-qn9fp]

Thanks for the video, helpful, I have a question, just looking at your seats, did the 911 logo on the seat come with the car?

[@TommyLGarage]

Yes, they came with the car like that. OEM option

[@DaveJoseph-qn9fp]

@@TommyLGarage I wonder if I can have an upholstery shop do this? If you know a good one in the porsche world here in NJ, let me know!

[@stellanti]

Tommy! I’ve contemplated doing this… thanks for the video! What do you do for winter storage? Is a tender needed or do you pull it in the spring and re-charge it?

[@TommyLGarage]

So you can use the tender I referenced for winter storage. For me - I drive it :)

[@stellanti]

@@TommyLGarageah, thanks. I see it now in the description. Cheers

[@lastlondon]

The car needs to know about a new battery as that will affect it not “abandoning” to charge it all the way, as it does with degraded older batteries. Also, lithium batteries have special charging curves that the car needs to know about; eg allow or not for deep discharge, max amp ratings etc. Putting a new battery in your Porsche without telling it it’s a new battery or what type of battery it is or its max amp rating is just really dumb.

[@TommyLGarage]

Tell me exactly how you feel

[@GerBeGurGya]

Excellent choice. I have the lithium battery in my bike for just over 6 years while before I had to replace it every year max year and a half in the Vegas heat. The price was just slightly higher so i already saved money in 6 years. Mine doesnt need a special charger tho not that I had to ever charge it. If you dont use these batteries they can sit for a year keeping the charge. Curious to hear about your winter experience with this tho as the lithium really doesnt like cold. I dont have to deal with that here. :)

[@TommyLGarage]

So my m5 has a lithium battery and my former m3 did too. Never had any issues

[@dcippitelli]

Hey Tommy, what version of amp hours did you get?

[@TommyLGarage]

The one I lined in the description. I didn’t want to go for the minimum one

[@dcippitelli]

@@TommyLGarage fyi... the link doesn't work.

[@Nitrolore41]

Yellow 911 🥇

[@TommyLGarage]

Yeyy!

[@kjyu]

Any color that isn't in the shades of gray is a win! (do not look in porsche configurator, ALL base colors are like that last time i checked 911T 😭)

[@BIBIWCICC]

Don’t use lithium in your Porsche unless you use it every day, as soon as they drop below 9.7v they are finished. These are not good storage batteries.

[@TommyLGarage]

I use my car twice a day

[@GerBeGurGya]

This battery doesnt drop below as it does retains a charge for emergency in case a load was left on which would otherwise deplete it. Also if you dont use the battery it will keep the charge for about a year, unlike conventional batteries these dont lose charge on their own over time so its always ready to go.

[@TommyLGarage]

@ awesome! Nice to hear from you Alex

[@GerBeGurGya]

@@TommyLGarage Been lurking around your page keep up the good work.

[@jamesreynolds4220]

Any starting battery allowed to go too low on voltage will be damaged. Trickle chargers are your friend.

[@MowSow]

I was horrified 😮😮😮😮 watching this video when you leaned against the door and fender, sat on the hood and bumper, put the battery on the hood and finder, not even a towel under it, NOT that you should try to place such a heavy object on body panels, creating scratches and dents You should NOT be near any car, nevertheless a Porsche 😢 😮😮😮😮

[@TommyLGarage]

The whole car has PPF - we are safe :)

[@MowSow]

@ if done right there should be ceramic on top of PPF to protect it. Ceramic can also scratch the same way like clear coat. A car should never be touched unless it’s being washed, and should be dried only with air.

[@TommyLGarage]

@ I like to not preserve it for the next owner

[@MowSow]

@@TommyLGarage yea, I never said don’t drive it, I said keep it looking classy and nice while you’re driving it around. I have 425,000km on one of my Porsches and the paint looks the same as the day I picked it up

[@rtr_____d]

It's not a very good idea to remove front weight from a 911...

[@TommyLGarage]

Tell me more!

[@blacksunshine489]

@@TommyLGarage😂

[@Silverscooby27]

I would think that changing the weight only on the front would change the weight distribution to more rear bias and more left bias, which might not necessarily be a good thing, even if you CAN “feel it”. I would think the Porsche engineers accounted for the weight of the battery in its placement. I suppose if you changed the exhaust and lost similar weight from the rear of the car, maybe this balances it back out again to an extent. 🤔 We’re probably all overthinking all of it, and it’s just a very expensive way to save a few pounds when instead we could eat a salad. 🥗 😂

[@artemiafl1413]

This is exactly how I think. Just loose some weight, be healthy and enjoy your Porsche 😅

[@TommyLGarage]

Do I really look overweight ?

[@TheEddysGarage]

@@TommyLGaragethe camera always adds a few pounds 😂

[@TommyLGarage]

@@TheEddysGarage geez, how many cameras were on me!? lol

[@J_________________________K]

its nice, but not worth The money.

[@TommyLGarage]

It’s a good weight saving

[@J_________________________K]

@@TommyLGarage So you can feel the difference?

[@TommyLGarage]

@@J_________________________K maybe !