DarkStar
Well-known member
I'm very curious if you charge to 80% or 100%... If you only do 80%, maybe the lack of top-end balancing is contributing to the issue (as strange as that would be)...
klapauzius said:26 "miles" on the range estimation. ...13 actual miles driven, it went dead.
klapauzius said:Anyway, assuming that 3 bars SOC mean 25% charge left = 6 kWH that should have gotten me 6 x 3.4 Miles or 20.4 miles, which would have been enough.
The bars represent % of the usable charge (so because of the cold if it was 22 kwh, bars would be relative to that). I'd be surprised if there is actually a bug that calculates based on 24 kwh, instead of actual remaining charge. But, not out of question. It could be a simple coding bug rather than a design flaw.klapauzius said:The car started out at 80% charge in the garage, which is about 45-48 F at this time of the year, maybe a bit lower on cold days like this one. I wonder if at this temperature the capacity of the car is actually less than 24 kWh? If the bars just show relative charge level and all range calculations are based on 24 kWh charge, this would easily explain this.
But this would be a serious design flaw...Does anyone have/know the temperature/capacity curve for the Leaf?
Given that SOC, it doesn't seem surprising that you ran out of charge. What is alarming is that turtle mode didn't get you further, thus leaving your family in an unsafe situation. It would have been best if the car had gone into turtle mode sooner and thereby given you more of an opportunity to get out of the flow of traffic.klapauzius said:At this point the car was showing 26 miles left, SOC was 3 bars.
abasile said:Given that SOC, it doesn't seem surprising that you ran out of charge.klapauzius said:At this point the car was showing 26 miles left, SOC was 3 bars.
klapauzius said:I was strictly going the speed limit, i.e. 55 mph (cruise control on!). Its about 16 miles freeway driving, the rest is at lower speeds.
This would be a good reason to require dealers to have 24/7 access to at least one charge station. Would still be a pita and the wife and kids would get a cab.klapauzius said:The tow truck driver towed me home. But not because Nissan roadside assistance did change their mind, but because of my AAA membership...
I think one thing to take from this (aside from hopefully some followup from Nissan regarding the ridiculously ineffective emergency response) is that recharging the car opportunistically is a good idea and probably habit to get into (assuming there isn't a huge rate disincentive to do so, which I grant there may be) - if your wife would have plugged in for an hour after the morning errands, it would have all been no problem
- not sure if that would have cost you significantly more than your nighttime charge. Obviously the car reading 60 on departure _should_ mean a 40 mile round trip is no problem, but for example due to the terrain close to our house (ending the previous day's drive) we start the day at a range of about 67 (with 10 bars) and because of that same terrain, it can still read 67 when my wife gets to work 12 miles later, but of course the real range has dropped (along with at least 2 bars). When there's more public infrastructure in place, that should make things easier as well - if you could have pulled into a McDonalds for a coffee when you got down to 2 bars, 30 minutes of L2 would have solved it - in a perfect world (exemplified by LAX, apparently) the time she spent at the cell phone lot would have instead been spent hooked up to a free charger at the airport, with free parking.
Sounds like it. At least both cases of "draining it" have occurred at relatively sedate highway speeds - you at 55 mph and the OP at 65 mph. Interestingly - both have occurred within 2 miles of the final destination.klapauzius said:Actually I would prefer to have less mileage initially, e.g. start with 73 instead of 83 miles range, and some "hidden" reserve on empty instead, but maybe that is just a matter of reconditioning my brain.
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