IssacZachary wrote: arnis wrote:
2 Bars should be shown if any sensor registers at least -5C. That is 23F
Depending on outside temperature there is small compensation too.
1 bar, I don't even know
I Think it should be -15C or 5F
At -25C battery should not be operational (or only turtle mode). -13F
That makes sense. Most days the high temperature has been between 18°F/-7°C and 32°F/0°F with it getting colder during the nights of course. The other day we awoke to -33°F/-36°C, which is typical that we get that cold or even colder for a few days each year. Good thing this thing has a battery heater.
So would that affect if I should charge to 80% or 100%?
Charging last 10-15% will take much much longer than in summer. It is not totally healthy to charge very very cold battery (1 bar).
I would suggest charging as soon as possible as battery is warmer after drive.
It's true that having battery heater in this climate is important; not to get stranded if it gets below -25C for few days in a row.
But I would charge to 100% IF you hear "low battery warning" at those temperatures. If you don't then you might consider not. You will also have better regen if you charge to 80%.
No need to unplug really. Not very convenient to do and preheating is pretty much not possible at those temperatures. Plus time limitation (15 min without plug).
If nights are that cold then I believe those are clear sky nights where heat radiates away from ground into space (literally). Usually those nights are ultra low humidity and low wind. This slows down battery cooldown (moist and windy weather cools faster). Even if it is -30C for the night battery most likely will be around -10C even without any heater activation during the first night after driving.
If you charge to 80%, let the battery cold soak down to 1 bar it barely charges above 90%. It will take forever and is not super healthy. Therefore if you run below low battery warning charge to 100% immediately after regular commute.
PS! If you want to have less range decrease due to cold battery, keep your accelerations modest. Do not draw more than 30-35kW while accelerating. Heavy discharge while chemistry cold is not good. I don't know why Nissan practically doesn't limit that at all.
PS! The real range estimation is displayed on range bubble map. There are two range values. The smaller one is the REAL estimated range!
I found out that this December. It is almost never wrong if you keep driving the way you do. You can go more if you go granny style.