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Any bets on max number on brand new 60? What would be the over/under 208? 209?
gg_got_a_tesla
Model S: VIN 65513, Model 3: VIN 1913
Cool. I have it for the weekend as Tesla had to keep my car from a service visit - they were missing a door panel part for a persistent rattle. Will update soon.
mknox
Well-Known Member
Been a while since I chimed in on anything so nice to see you all alive and kicking on here.
Just recently I noticed a drop in full charge that seems fairly significant. When I got my 60 MS the rated range was 208. About 15 months later and just over 10K miles on it, a full range charge gets me 182 miles. Pretty significant difference. I asked Tesla about this and after 4 or 5 emails it was pretty much a clown show. The ultimate answer I got consisted of instructions on how to switch from Rated to Ideal range display, which had nothing to do with my question.
I will have to try the supposed rebalancing techniques and see what happens.
Cheers
PS-Ever since the slider was available I have tried to charge to more like 60-75% for daily use. If this indeed promotes better long term battery life at the expense of short term range reduction due to poor cell balance then I should be a good test case for this theory and should see a significant improvement in trip charge max range as a result. I don't have long trips coming up soon but next time I do I will go through the recommended procedure and report back.
Cheers
Just recently I noticed a drop in full charge that seems fairly significant. When I got my 60 MS the rated range was 208. About 15 months later and just over 10K miles on it, a full range charge gets me 182 miles. Pretty significant difference. I asked Tesla about this and after 4 or 5 emails it was pretty much a clown show. The ultimate answer I got consisted of instructions on how to switch from Rated to Ideal range display, which had nothing to do with my question.
I will have to try the supposed rebalancing techniques and see what happens.
Cheers
PS-Ever since the slider was available I have tried to charge to more like 60-75% for daily use. If this indeed promotes better long term battery life at the expense of short term range reduction due to poor cell balance then I should be a good test case for this theory and should see a significant improvement in trip charge max range as a result. I don't have long trips coming up soon but next time I do I will go through the recommended procedure and report back.
Cheers
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islandbayy
Active Member
Just want to chime in on another update on my 60kW pack. With my "abuse" (using the crap out of my car), at 25,000 miles, my pack shows between 206 and 208 Rated on a 100% charge. Hard to get a accurate reading here in Wisconsin due to the cold skewing the numbers, so I can only measure after supercharging, otherwise my pack has cooled too much before charging complete, and the car adjusts range for cold pack temps. I have not been doing many Range charges lately since my return from Niagara Falls, and it does not appear that running my car to exhausted requiring a tow to a supercharger after car sitting at 5-10 degrees F overnight has caused any issues.
EDIT: Summary: 60kW pack, 8 Months 3 weeks Ownership, 25k Miles, 206-208 Rated at 100% on Warm Pack. Stone cold pack = 189-192 at 100%
EDIT: Summary: 60kW pack, 8 Months 3 weeks Ownership, 25k Miles, 206-208 Rated at 100% on Warm Pack. Stone cold pack = 189-192 at 100%
Your numbers are, I think, the lowest for those of us with 60s posting on the forum. It sounds like your pack has never balanced since you too delivery of it, especially if you're keeping it charged to no more than 60-70% SOC max. I assume you've done few if any range charges since taking delivery.
My rated stops at 174 and my Ideal is 204. I'm even more convinced that the rated got screwed up after the 5.6 update (not 4.5 where standard dropped from 93% to 90% where 10 miles rated disappeared. Had that not happened I would have been 184 and 204 about the same as the loaner you had.
glhs272
Unnamed plug faced villian
I am sure with time and patience, your pack rebalanced will get 206 to 208 rated miles just fine.
90% is not 90%. On other thread, someone did the math and demonstrated the 90% tick on slider is actually 87.5%. All of which happened in a software release, so it is not apples and apples to compare "90%" charge today to "normal" charge back before the slider.
Rlang, your numbers do not seem disturbing. To me, anyway.
Rlang, your numbers do not seem disturbing. To me, anyway.
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Doubt it. VisibleTesla and other Tesla REST API tools report a 90% battery SOC when a 90% standard charge is selected on the slider.
Now whether the 90% SOC algorithm is very accurate or not, including or excluding battery reserves, that's another question...
well, yep. I show 250 rated @ range charge on A battery w/15 months and 13000 mi. When I do charge at any tick on slider, be it 90%, 80, 70, 60 I get less than that % of 250. Far less. That's why I can't buy balancing as the whole problem, algorithm is what I suspect has largest impact.
Well, that phenomenon is because the battery curve is non-linear. You are charging to % coulombs of charge that the battery can store, not % of maximum rated miles you can drive.
The lower the battery charge the fewer miles per coulomb (for same watt power, battery current goes up at lower voltage, current -> dQ/dt goes up, i.e stored electrons get used up faster)
Me either and I wasn't trying to convey otherwise. I am just pointing out how far off the rated range is and how inaccurate I believe it to be. In my case I get an ideal of 231 at a 100% charge which tells me no degradation, but the rated is 197-200 would tell me I have some. People are getting all worked up about losing range, out of balance, etc and they are all using the rated number, (except for AmpedRealtor) they should be using the ideal number if they really want to track this.
Also back before the slider it was ~93% according to REST data, today it is 90% also according to REST.
Awesome, I try to learn something new every day, and today you obliged.
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