There are going to be hot days over the course of a summer in a lot of places - hot enough to cause the LEAF pack to get too hot to perform properly on those days. That's acceptable.
What's not acceptable is selling a LEAF to someone who lives in a desert climate, where most of the summer days are around 100F or more, without making then aware that the battery will degrade much faster over time and that the car will not perform optimally when the pack overheats.
Coming up with a formula to define "too hot" is challenging for sure, but one option would be a threshold for the historical average number of days where the temperature exceeds 100F. That could be easily represented on the sales sticker as a color coded bar graph. For example, 0-5 days gets green bars, 5-10 days gets yellow bars, anything over 10 gets red bars. A legend for the color coding could explain more details:
- Green = your EV's performance should not be adversely affected by overheating in your climate
- Yellow = your EV's performance will likely be occasionally affected by overheating in your climate
- Red = your EVs performance will be adversely affected by overheating on a regular basis in your climate
Or something similar
I'll concede that buyer awareness is a better objective than outright bans, but any buyer awareness initiatives should be government mandated, using standardized labeling and wording
Vancouver, CA owner of a 2013 Ocean Blue SV + QC, purchased 01/2017 in WA
Zencar 12/20/24/30A L1/L2 portable EVSE
1-1/4" Curt #11396 hitch
After market, DIY LED DRLs
LeafSpy Pro + Konnwei KW902 ELM327 BT OBDII dongle
Loving my first BEV