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49k miles, 2014, 20% degradation per BMW in Dec 2018.

Please see the post below if you are having range issues (or not) and take the associated survey. Thanks! https://www.mybmwi3.com/forum/viewtopic.php?f=10&t=16247

Thanks for the responses. The survey is voluntary and unofficial. Ignore it if not interested. Luckily it has garnered some attention with actual useful data and for that I am appreciative. There is already an organization interested in the data as there is definitely a potential warranty...

CARB didn't define a sunset date on vehicle certification*. Since ZEV ratings are emissions ratings and BMW has emissions warranties in place that include the HV battery for up to 10 years or 150k miles (in applicable states), a degrading battery that causes failure to conform to ZEV...

Sorry for the first post thread starter - but I have some information that I'd like to share. There are some concerns about the 60Ah i3's ability to maintain ZEV certification, especially in states that have adopted CARB regulations. Basically, if you own a 60Ah i3 in the US and have...