Model 3 poll - have you changed battery

[m3p_uk]

Interested to see the proportion of people who have changed their 12v battery.
Mine is 4.5 years old now and although it's not used to crank start an engine, it's an old style which typically only last 5 years so interested to see how many have changed theirs.

 

[Jason71]

Interested to see the proportion of people who have changed their 12v battery.
Mine is 4.5 years old now and although it's not used to crank start an engine, it's an old style which typically only last 5 years so interested to see how many have changed theirs.

do they still have a 12v battery? or did they change it for a 15v Li one like the MY has in the newer ones??
I had an M3 from new for nearly 3 years 27K miles. Never changed the 12v

 

[SalisburySam]

06/2018 birth month, 2018 M3 LR RWD with original 12v. Working just fine.

 

[GRiLLA]

My first Model 3 reached 3 without changing the 12v, the new one has the 15v Lithium.

 

[m3p_uk]

My first Model 3 reached 3 without changing the 12v, the new one has the 15v Lithium.

Assuming you can't just unplug the 12v and then plug in the 15v lithium as a replacement?

 

[Jason71]

Assuming you can't just unplug the 12v and then plug in the 15v lithium as a replacement?

I don't think so but you could always get one of these:

It at least has L I O N written on it

 

[GRiLLA]

Assuming you can't just unplug the 12v and then plug in the 15v lithium as a replacement?

No, several other changes for the new voltage. There are however lithium based 12v batteries to be drop in replacements for lead/acid batteries. No experience of them from me.

 

[M3noob]

do they still have a 12v battery? or did they change it for a 15v Li one like the MY has in the newer ones??
I had an M3 from new for nearly 3 years 27K miles. Never changed the 12v

The Force us with us... but just in case, I am now carrying a MN21, jumper battery, 10mm spanner and a 12V battery - long expeditions thru France and Spain and horror stories about Tesla support have made me paranoid ;-)

 

[MrBadger]

Mine is 4.5 years old now and although it's not used to crank start an engine, it's an old style which typically only last 5 years so interested to see how many have changed theirs.

I think you will find your car is a year younger.

 

[tsh2]

Surely a better question for the 3 year plus cohort is when you plan to change the battery if you are keeping the car. I still have warranty till November, so I guess I will change my 12V before the winter trip to France (i.e. at ~4 years).

 

[pdk42]

There are however lithium based 12v batteries to be drop in replacements for lead/acid batteries. No experience of them from me.

They may be drop in for discharge, but charging a Li ion battery is quite different to charging a lead acid.

 

[MrT3]

They may be drop in for discharge, but charging a Li ion battery is quite different to charging a lead acid.

The ones sold specifically for Tesla vehicles have a built in BMS to control charging. Don’t see the point though, they are at least 4x the price of a regular one, unlikely to last 4x as long and have issues in freezing conditions.

 

[M1tch]

12v battery was changed when the HV battery got swapped out.

I assume I’ll get another 12v battery when I get my second HV battery next week.

18 months old….

 

[Billbrown1982]

little over 2 years old so not yet. Every time I see a post like this though I'm reminded that I probably should be concerned.

Especially as my car has a hydraulic frunk now and I really am not sure how well that will work in the event of a power loss and you can bet your ass Tesla will use that as an excuse to not sort it under warranty.

 

[Mr Miserable]

I think you will find your car is a year younger.

He's from the USA and knows how old his car is.

 

[Jason71]

He's from the USA and knows how old his car is.

He is doing a good job of pretending he is not then.
He is called m3p_UK. he gives his location as "UK" and he started a UK thread. seems an odd thing to do if you are from the US

 

[HCassidy]

12v battery was changed when the HV battery got swapped out.

I assume I’ll get another 12v battery when I get my second HV battery next week.

18 months old….

Why have you needed so many HV batteries?

 

[Jason71]

Why have you needed so many HV batteries?

2nd HV battery replacement!

A few months ago I got a warning to book my car in for a service as there was an issue with the HV battery. No problem, booked in, replacement battery fitted, hire car provided - no issues. However, they charged the replacement to 97% and it only showed 280 miles of range! I complained and...

teslamotorsclub.com

 

[MrBadger]

He is doing a good job of pretending he is not then.
He is called m3p_UK. he gives his location as "UK" and he started a UK thread. seems an odd thing to do if you are from the US

And renamed their account and previous account name was certainly part of discussion of early UK deliveries.

However I sensed a touch of sarcasm in @mrmiserable’s response.

 

[kuruma]

So, if you do get a battery warning, what kind of battery does a 2019 M3 need? Should I get one now to keep in the garage just in case or wait until a warning actually appears?