jmurtagh13 wrote: ↑
Fri Sep 11, 2020 3:17 pm
SageBrush wrote: ↑
Fri Sep 11, 2020 11:59 am
jmurtagh13 wrote: ↑
Fri Sep 11, 2020 11:04 am
the battery temp stays below 85 deg most of the time, never above 90 deg.
If you can improve (decrease) the average battery temp it will last longer.
That would be hard to do in Atlanta's summers. By the time the charging starts about 3:00am the battery is down to between 75 and 80. and that is just during the hottest 4 months of the year. The other 8 months it's 70 or below. I really thought that those temperatures were reasonable. My understanding is that EV's with battery thermal management don't start cooling until the batteries reach around 110 degrees.
Reasonable for driving -- sure.
Reasonable for degradation -- No
I can only speak about my Tesla -- temp management is waay lower than 110F. You can watch youtube videos by Bjorn Nyland when he monitors pack temps after supercharging. IIRC the battery is cooled down into the 80s F immediately after DC charging but the car is still being driven, and once the car is parked the battery is cooled into the 70s F within an hour or two. That is the pack chemistry of the Model 3, which I gather prefers life at a warmer temperature than prior Tesla cell chemistries.
If you keep the car in a poorly ventilated garage, consider instead leaving it outside during the hot months when ambient is less than your garage. You are otherwise managing the car wisely, but battery temp is THE issue with these cars. The more you can do for the LEAF battery, the longer it lasts. My 2013 LEAF still has 11.5 battery capacity bars but I start fretting when the temp bars goes over 5. That is unfortunately what it takes to get long(er) life from these cars.
Last edited by SageBrush
on Fri Sep 11, 2020 4:20 pm, edited 4 times in total.
2013 LEAF 'S' Model with QC & rear-view camera
Bought Jan 2017 from N. California
Two years in Colorado, now in NM
03/18: 58 Ahr, 28k miles
11/18: 56.16 Ahr, 30k miles
09/20: 54.3 Ahr; 38k miles
2018 Tesla Model 3 LR, Delivered 6/2018