Need a little help reconciling actual miles driven. So everyone talks about how much you can actually drive and how you drive affects the distance you can drive. I've been trying to understand what my real usage at various charge levels would be.
I've heard all types of advice like give yourself 20% cushion and you can drive however you want. So if you want to go 100 miles, you can do that on 120 or more rated miles. Drive conservatively and in general, the MS has such a large battery, it doesn't matter, but on those days when I drive a lot, I'm noticing I'm not getting the actual mileage I was hoping for. The reason I say that is, my average after 8000+ miles is 335 wh/mi, but when I use the trip meter and look at Miles Drive since last charge no matter what the average wh/mi is at the time, it doesn't add up with the rated, even if the wh/mi is < 300wh/mi.
My understanding is rated miles is based on driving @ 300wh/mi.
Please help me reconcile this, as I start to do more and more longer trips this gap does give me a little "range" anxiety. Here are some samples from my trips:
Charged to 80% = 210 rated, Since last charge meter shows 103.1 miles driven, 30.6 kWh used and an average energy of 296 Wh/mi, however my rated range remaining is 96. 96+103 = 199. That's 11 miles less than the rated that I started with and at 296 wh/mi, I should have slight better than rated miles, but instead I have 5% loss when driving below 300 wh/mi.
Charge to 90% = 237 rated
- 100 miles driven 32.6kwh used 326 wh/mi left me with 117 rated range left. (20 miles were lost giving an 8.4% waste, which could be because of driving > 300wh/mi)
- additional 65 miles driven for a total of 165 miles using 55.9 kWh and average 339 wh/mi and left me with only 32 rated miles. This ended up with a 16.9% loss. Even if I applied the 16% loss to the last 32 miles, I would have only gotten 190 actual miles out of 90% charge, which is 20% loss of mileage from rated, even though at 165 it was 16.9%.
Again, I'm not driving in the winter, I'm in nice neutral CA, I don't have the AC running. So in the most tempered climate, I'm not getting close to rated, even when I've driven <300wh/mi. The 339 wh/mi wasn't even a spirited drive, it was just a lot of freeway driving. The 296wh/mi was conservative driving and I still got less than rated.
Gives me a little apprehension for longer trips. I'm sure it's unnecessary worry, but seems odd to me.
Russ
I've heard all types of advice like give yourself 20% cushion and you can drive however you want. So if you want to go 100 miles, you can do that on 120 or more rated miles. Drive conservatively and in general, the MS has such a large battery, it doesn't matter, but on those days when I drive a lot, I'm noticing I'm not getting the actual mileage I was hoping for. The reason I say that is, my average after 8000+ miles is 335 wh/mi, but when I use the trip meter and look at Miles Drive since last charge no matter what the average wh/mi is at the time, it doesn't add up with the rated, even if the wh/mi is < 300wh/mi.
My understanding is rated miles is based on driving @ 300wh/mi.
Please help me reconcile this, as I start to do more and more longer trips this gap does give me a little "range" anxiety. Here are some samples from my trips:
Charged to 80% = 210 rated, Since last charge meter shows 103.1 miles driven, 30.6 kWh used and an average energy of 296 Wh/mi, however my rated range remaining is 96. 96+103 = 199. That's 11 miles less than the rated that I started with and at 296 wh/mi, I should have slight better than rated miles, but instead I have 5% loss when driving below 300 wh/mi.
Charge to 90% = 237 rated
- 100 miles driven 32.6kwh used 326 wh/mi left me with 117 rated range left. (20 miles were lost giving an 8.4% waste, which could be because of driving > 300wh/mi)
- additional 65 miles driven for a total of 165 miles using 55.9 kWh and average 339 wh/mi and left me with only 32 rated miles. This ended up with a 16.9% loss. Even if I applied the 16% loss to the last 32 miles, I would have only gotten 190 actual miles out of 90% charge, which is 20% loss of mileage from rated, even though at 165 it was 16.9%.
Again, I'm not driving in the winter, I'm in nice neutral CA, I don't have the AC running. So in the most tempered climate, I'm not getting close to rated, even when I've driven <300wh/mi. The 339 wh/mi wasn't even a spirited drive, it was just a lot of freeway driving. The 296wh/mi was conservative driving and I still got less than rated.
Gives me a little apprehension for longer trips. I'm sure it's unnecessary worry, but seems odd to me.
Russ