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Makes me wonder about how Teslas will age. IIRC they have lots of small batteries placed throughout the car and I’m not sure they were designed to be replaced a
by yeetaccount2 5y ago
Makes me wonder about how Teslas will age. IIRC they have lots of small batteries placed throughout the car and I’m not sure they were designed to be replaced after wearing out.
- db48x 5y agoNo, Teslas do not have batteries placed throughout the car. They have a single large battery pack that bolts to the underside of the car. Inside that are smaller battery packs that contain the cells as well as the cooling channels and electrical connections. If you want to completely replace the batteries in a Tesla you can do so in less than an hour, if I recall correctly. It doesn’t require any special equipment either.
- southerntofu 5y agoDoes the Tesla battery come with electronic chips to prevent 3rd party batteries like inkjet printer cartridges?
- panick21_ 5y agoNo. But if you inject a new battery it needs to be mostly the same as the others and you need to re-balance the pack. There is software for this.
- southerntofu 5y agoI've never heard of balancing batteries. All i could find about it was a forum post with people just as confused as me. [0] Do you have resources on this topic? [0] https://teslamotorsclub.com/tmc/threads/balancing-the-battery.41245/ https://teslamotorsclub.com/tmc/threads/balancing-the-batter...
- panick21_ 5y agoThis video shows how it works and from there you might find some more information: https://www.youtube.com/watch?v=T7Q0nNkQTC https://www.youtube.com/watch?v=T7Q0nNkQTC Really about 5-6 min in.
- mc32 5y agoIt does not require specialized equipment, but it does require a lift --which few people have in their garage, and you have to remove all the seats. But to be fair, swapping out an ICE engine is even more work/difficult. On the other hand, one bad cell means you have to pull out the whole battery pack to replace the single deflective cell.
- ianai 5y agoBut the battery management system automatically disables bad cells so you wouldn’t need to replace an individual cell.
- mc32 5y agoPeople seem to have a different experience. See here: https://electrek.co/2021/09/13/tesla-battery-pack-replacement-repair/ https://electrek.co/2021/09/13/tesla-battery-pack-replacemen...
- jacquesm 5y agoThere are different models of Tesla packs in circulation.
- kwhitefoot 5y agoThat seems really unlikely, or impossible. The 18650 cells in a Tesla Model S are only about twice as big as an AA and they are grouped in parallel blocks that are then connected in series. There does not appear to be any way of isolating a specific cell. Each module has six groups of cells in series, 74 in parallel in each group, giving a module voltage of 22.8 V. See https://www.researchgate.net/figure/Tesla-Model-S-74p6s-Battery-Module-Schematic_fig4_337298547 https://www.researchgate.net/figure/Tesla-Model-S-74p6s-Batt...
- jacquesm 5y agoNewer Tesla batteries are fused per cell, so when a battery dies and it's neighbor cells start dumping charge into it the fuse goes and hopefully that's that. So it's perfectly possible for a single battery to become disconnected from the rest of the pack. But that's not a function of the battery management system, it's purely a safety feature (otherwise the pack would almost certainly go up).
- pottertheotter 5y agoI don’t know that you’ll be able to do that as they change to their structural batteries.
- kwhitefoot 5y agoThere are two: the main traction battery and a 12 V battery that keeps the control system alive even if the main battery is completely flat.