Battery Warranty

[Jeremy]

There's a lot of discussion on Leaf forums about quite rapid battery degradation and the point at which it becomes a warranty issue.

Apparently Nissan will only consider requests for replacement if the charge capacity drops to 66% in 5yrs.

Does anyone know yet what BMW's expected degradation and replacement criteria will be?

 

[russtyjames]

I'm not sure on the BMW battery warranty but I found this article interesting on expected battery life,
(Translated, sorry it was in German)

http://translate.google.com/translate?sl=auto&tl=en&js=n&prev=_t&hl=en&ie=UTF-8&u=http%3A%2F%2Fadacemobility.wordpress.com%2F2013%2F10%2F21%2Fbatterie-experte-sven-bauer-der-tesla-akku-oder-der-im-bmw-i3-das-ist-ein-gewaltiger-unterschied%2F

 

[Jeremy]

That sounds encouraging.

We'll find out if it's true over the next 4/5 years.

Leaf drivers in hot climates seem to be having a lot of battery life disappointments.

 

[Plug]

Does anyone know yet what BMW's expected degradation and replacement criteria will be?

I'm not trying to be arsey (it's a good question) but have you tried asking BMW ?

 

[Stevei3]

Hi Jeremy,

here in NL, the battery is warranted for retaining 70% charge for 8 years or 100kkm. I guess this means that the criterium is 70%.
I believe it is 100kmi in the UK.

Greetings, Steven

 

[Jeremy]

Thanks Steven - that's much better than Nissan's 66% @ 5yrs.