[Space Cadet]

Originally Posted by Aalfred

And here I thought they were gonna be all AA batteries throughout the floor and trunk !!! lol

Just think how long it would take to change them if they were

[heatmizr]

Wow, thanks for the cool pics. It's a bit hard to understand what I am looking at, esp in the first post, it looks different in every pic. Is it the outer layers all coming off one at a time?
Further down, the newer pics, it took me a minute to realize that one pic was of just one single Dual cell. Hard to judge the size without your foot or hand in the pic

[freshxdough]

Originally Posted by heatmizr

Wow, thanks for the cool pics. It's a bit hard to understand what I am looking at, esp in the first post, it looks different in every pic. Is it the outer layers all coming off one at a time?
Further down, the newer pics, it took me a minute to realize that one pic was of just one single Dual cell. Hard to judge the size without your foot or hand in the pic

Second photo and third photo show the size of the width. The battery pack literally the width of the vehicle. The dual cell is nearly that entire width if you judge by the photo of the cell no longer in the pack. The thickness is probably about 4inch or so.

[heatmizr]

And the battery is identical between the e40 & M50 right?

[freshxdough]

Originally Posted by heatmizr

And the battery is identical between the e40 & M50 right?

Yes pretty much. Just no additional HV connection for front drive unit

[Nahlem]

Cool pictures do you think a pack like this would be able to be upgraded down the line lets say someone keeps their i4 for 7-8 years, and solid state or better lithium battery's would be available with better effect and range and lower weight do you think it would be possible to upgrades it like that through third party without it being to much of an issue.

Or is this type of setup simply consume and then throw away, if kept for longer only to be replaceable with the same type of battery pack, that might not even be available in 10 years or so.

Or is it simply so that what is made for the i4 only fits for the i4 and its versions.

I am thinking something in the lines of |--| if that is one cell beneath the black covers and one of those contains i don't know 10 of those cells, now imagine if new cells could deliver the same range as the 10 of the old ones so you go in remove 5 cells in every of those black packs but keeping the range because of new cells being so good then reducing weight while at the same time reduction of weight gives even more increase in range.

While doing some minor modifications to the black container having the cells so they are safe in a crash and also keeps the car balanced and not shifting to much weight to the front or back.

[freshxdough]

Originally Posted by Nahlem

Cool pictures do you think a pack like this would be able to be upgraded down the line lets say someone keeps their i4 for 7-8 years, and solid state or better lithium battery's would be available with better effect and range and lower weight do you think it would be possible to upgrades it like that through third party without it being to much of an issue.

Or is this type of setup simply consume and then throw away, if kept for longer only to be replaceable with the same type of battery pack, that might not even be available in 10 years or so.

Or is it simply so that what is made for the i4 only fits for the i4 and its versions.

I am thinking something in the lines of |—| if that is one cell beneath the black covers and one of those contains i don't know 10 of those cells, now imagine if new cells could deliver the same range as the 10 of the old ones so you go in remove 5 cells in every of those black packs but keeping the range because of new cells being so good then reducing weight while at the same time reduction of weight gives even more increase in range.

While doing some minor modifications to the black container having the cells so they are safe in a crash and also keeps the car balanced and not shifting to much weight to the front or back.

I don’t know. I’m not an engineer. But judging by how these cells are made and what all is monitored and coolant connections etc, I doubt there will be any aftermarket that will be upgrading these packs down the line. The i4 battery will only fit and is designed for the i4.

[heatmizr]

And yet...
BMW did improve the batteries for the i3's sold in later years; and lots of ppl have swapped those into older i3's, and enjoy increased range.
So while it is certainly possible, we'll have to see if BMW will support this current i4 platform down the road. Or simply move on to the next (likely better) platform in a decade or two.

[freshxdough]

Originally Posted by heatmizr

And yet...
BMW did improve the batteries for the i3's sold in later years; and lots of ppl have swapped those into older i3's, and enjoy increased range.
So while it is certainly possible, we'll have to see if BMW will support this current i4 platform down the road. Or simply move on to the next (likely better) platform in a decade or two.

I never said BMW didn’t. Guy was asking more on the aftermarket front. I3 was definitely BMWs first real baby into EV. It was very obvious that 60ah battery from 2014 was okay but not great. Then increased to 90 and then 120. The 120’s have much much more range but still nowhere near what we have today in Gen 5 HV systems. There may eventually be increases to the standard range from an i4 in the future but at 300 miles were already reaching a good range. Next would likely be a change in battery chemistry to be lighter and more efficient but still provide same or slightly more range. You’re not going to have a ton of people begging for range upgrades on an already 300 mile capable battery like you did in 65 mile range early i3 vehicles.

[Nahlem]

Originally Posted by freshxdough

I never said BMW didn’t. Guy was asking more on the aftermarket front. I3 was definitely BMWs first real baby into EV. It was very obvious that 60ah battery from 2014 was okay but not great. Then increased to 90 and then 120. The 120’s have much much more range but still nowhere near what we have today in Gen 5 HV systems. There may eventually be increases to the standard range from an i4 in the future but at 300 miles were already reaching a good range. Next would likely be a change in battery chemistry to be lighter and more efficient but still provide same or slightly more range. You’re not going to have a ton of people begging for range upgrades on an already 300 mile capable battery like you did in 65 mile range early i3 vehicles.

It would be nice if BMW would offer this obviously BMW want to sell as many cars as possible that is their end goal, sell cars & earn money, but the earn money part can be done in many ways.

As stated what if the improved the tech or chemistry in the battery and someone who buys an i4 on the 2nd market 3rd market, or so given it won't be many that will be buying i4 then swapping for a new battery if the new battery cost as much as the car.

But would be nice if you could buy the i4 on the 2nd market, and the option of swapping the original battery for a "new" restored one that fits the i4 and and gives the car its full capability back to the owner with maybe the benefit of reducing its weight because of new battery tech that fits the older cars, for a good price and BMW sells more battery's while at the same time extending their life of the cars, depending how degraded the battery is in 10 years or so. Good Pr for BMW being able to market them self like that. Restoring cars range, extending the life of the car and also reducing its weight everything helping the "old" car feel like new and improved over time.

[techwhiz1]

Originally Posted by Nahlem

It would be nice if BMW would offer this obviously BMW want to sell as many cars as possible that is their end goal, sell cars & earn money, but the earn money part can be done in many ways.

As stated what if the improved the tech or chemistry in the battery and someone who buys an i4 on the 2nd market 3rd market, or so given it won't be many that will be buying i4 then swapping for a new battery if the new battery cost as much as the car.

But would be nice if you could buy the i4 on the 2nd market, and the option of swapping the original battery for a "new" restored one that fits the i4 and and gives the car its full capability back to the owner with maybe the benefit of reducing its weight because of new battery tech that fits the older cars, for a good price and BMW sells more battery's while at the same time extending their life of the cars, depending how degraded the battery is in 10 years or so. Good Pr for BMW being able to market them self like that. Restoring cars range, extending the life of the car and also reducing its weight everything helping the "old" car feel like new and improved over time.

Whether or not they offer improved chemistry, they will need to have stock of new/refurbished battery packs.

Interesting enough, BMW battery packs can be refurbished, at least currently you could gut and replace all the cells.

Newer Teslas have a battery pack with the cells basically held in place by industrial glue/foam. This makes the new battery packs destined for the recycle bin with any failure.

[Edvarts W4E]

Does somebody have a number of recalled packs-modules available?

Does somebody have an infosheet on the module?

We believe this is an CATL 24s3P modules. Since we also recentlly received these modules from dealership we are in a desperate need of more information as we are a 2nd life ev battery integrator company and would love to learn more about it.


Best regards,
Edvarts from Watt4Ever

[heatmizr]

Yep I was agreeing with you, just wanted to add that about the i3. Thanks.

[frogman60]

How long does it take to remove the battery pack to replace the pyrofuse inside.

[freshxdough]

Originally Posted by frogman60

How long does it take to remove the battery pack to replace the pyrofuse inside.

Several hours. I don’t recommend you do this yourself unless you’re certified to work on these vehicles. You can damage the car or hurt yourself in the process.

[Space Cadet]

Looking over someone’s shoulder at a copy of the TIS recently shows it as a major piece of work that requires specific processes, sequences, diagnostic tools and special tools only available to main dealers. This battery can kill if mishandled. If you have the tools etc and have access to the actual BMW procedures then fine, if not, leave it to the experts.

[freshxdough]

Not to mention it’s like 1400 pounds.

[frogman60]

Is the pyrofuse that is activated after an accident actually inside the battery pack or is it accessible from outside. Seems strange to have to remove and dismantle the whole pack just to replace a fuse. Is there more than 1 pyrofuse that blows in the event of an airbag blowing.

[freshxdough]

Originally Posted by frogman60

Is the pyrofuse that is activated after an accident actually inside the battery pack or is it accessible from outside. Seems strange to have to remove and dismantle the whole pack just to replace a fuse. Is there more than 1 pyrofuse that blows in the event of an airbag blowing.

Fuse, outside. Pyro technic device, inside. You need to replace that whole component at the front that you can see from under front.

[frogman60]

From under front of battery ?? What does it look like. Is it behind a panel.

[freshxdough]

Originally Posted by frogman60

From under front of battery ?? What does it look like. Is it behind a panel.

Under front of battery. You’ll see it. The component is black. You can replace the fuse by itself. By the pyrotechnic is inside the whole black piece and needs to be removed from inside.

[Space Cadet]

Post #15 top image, bottom centre of that picture is the device I think?