General > General Technical Chat
Tesla model Y 4680 battery pack not very serviceable!
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Miyuki:

--- Quote from: tom66 on August 19, 2022, 10:38:13 am ---
--- Quote from: james_s on August 19, 2022, 02:38:36 am ---It's more complex than that. I am greatly in favor of products being repairable, however using glue instead of screws can result in lighter weight, smaller size, higher durability, better water resistance and perhaps other advantages. The simple fact of the matter is that no matter how repairable something is made, 99.9% of them are never going to be repaired when they break. Those of us like myself who repair things are a tiny, tiny minority of the population and when something can be made cheaper, it is more cost effective to replace than to pa somebody to repair.

--- End quote ---

I don't think it's as low as 0.1% of all products.

Even here you can get say £20 for a broken smartphone at a high street shop, which suggests that this is worth buying for someone to repair or at least extract parts from to repair others. 

Cars will be worth repairing until they're not - but for many this would be 15-20 year lifespans in countries which do not use road salt, maybe 10-15 years is ones that do.  (Incidentally, there are a few places trying a mix of brine and beet juice instead of just salt, to reduce corrosion, so cars may begin to last even longer.)

--- End quote ---
Modern cars (at least European brands) tend to have outstanding corrosion protection.
This year I put to scrap my Renault manufactured in 2001 and it just started to get some cosmetic rust, not structural issues yet. So I can imagine in a climate without salt it would last almost forever structurally.
It was scrapped because in the last service they forget to put some kind of Loctite on bolts holding in the engine. So it just fell off during a ride due to vibration.  ::)
nctnico:

--- Quote from: james_s on August 19, 2022, 02:38:36 am ---
--- Quote from: Psi on August 19, 2022, 01:53:45 am ---The only downside to making a product more repairable is cost.
The initial design/RnD cost a little more to make it easy to take apart and production costs are a little
higher for screws instead of glue etc.

--- End quote ---

It's more complex than that. I am greatly in favor of products being repairable, however using glue instead of screws can result in lighter weight, smaller size, higher durability, better water resistance and perhaps other advantages. The simple fact of the matter is that no matter how repairable something is made, 99.9% of them are never going to be repaired when they break. Those of us like myself who repair things are a tiny, tiny minority of the population and when something can be made cheaper, it is more cost effective to replace than to pa somebody to repair.

--- End quote ---
I disagree here. I assume you have read news stories about BEV batteries costing more than the car is worth to replace. First of all this is bad for publicity for the brand and BEVs in general, secondly it makes buying a BEV a gamble. 99.9% means that 1 in 1000 batteries will fail which is quite a lot. Nobody will complain about a repair of $800 but people will complain about needing a  $8000 repair.

@tom66: corrosion is something from the 70's and 80's. Rust protection has improved a lot. It is not a problem at all. Not even after 30 years for cars made in the EU. We have had several cars until they where 18-20 years old without any rust issues.
tom66:
In any case, good maintenance will reduce the impact of salt.  If I take my car out in winter and salt has been used, I give the underside a quick spray with the jet wash once a week or so, just getting any leftover salt obviously off exposed surfaces.  But yes, VW sold my car with a 12 year anti-perforation warranty, so they must be fairly confident that very few claims will be made in that time. And that warranty doesn't exclude countries that use salt for 3 months out of the year, like Norway.
tszaboo:

--- Quote from: Miyuki on August 19, 2022, 11:38:23 am ---Modern cars (at least European brands) tend to have outstanding corrosion protection.

--- End quote ---
Hey, Italy is also in Europe, ok?
nctnico:

--- Quote from: tszaboo on August 19, 2022, 03:23:52 pm ---
--- Quote from: Miyuki on August 19, 2022, 11:38:23 am ---Modern cars (at least European brands) tend to have outstanding corrosion protection.

--- End quote ---
Hey, Italy is also in Europe, ok?

--- End quote ---
Italian cars don't make it long enough for rust to have a significant impact on the car  :box:
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