Separate names with a comma.
I've seen overtemp, power limited messages before, but it's always been for the PEM not the battery. That's what makes the Roadster a not-so-good...
Range charging does at least two things for the 3.0 battery. One is that it balances better with a full charge than with a standard (80%) charge....
My pads are wearing out, and I need to replace them. I got the Carbotech Bobcat 1521's. Are there different sizes that I need to worry about, or...
Meh. I think that the damage caused by a range charge is pretty minimal. While doing it every day probably isn't a good idea (which is why they...
My 3.0 battery in range mode no longer makes it to 300.
I was going to point out the same things about the laws of physics. Then I saw the smilies in the post, twice. It's a joke. No need to tell the...
This has been out for two days, I'm surprised it's not here. Only a few seconds, but it looks like a special effect rather than a real car....
IIRC, some of the 2.0's got upgraded to have some of the 2.5 features, and people were calling them 2.25's.
You could try that. Or maybe you have a bad memory stick, often they're pretty low quality. What's the error you're getting?
OK, here's the update. I've got new data for 33, 181, 277 (EU), 330 (EU), and 670, which happen to be the five highest mileage cars in the study....
Don't bother until you've driven it a little. The CAC algorithm doesn't update at all when the car isn't driven, so all I'll get will be the same...
Thanks. So far, I've only gotten an update from Steve Casner, so I'll hold off posting the update for a little while until I get yours and...
I haven't made an update in the graph for months. It seemed like doing updates with only a little new data didn't add very much. However, it's...
I bought the hard top with my Roadster with the idea that I'd use it in the winter. I find that I rarely bother, and then only so I don't feel...
The motor is perfect as far as I can tell. The battery is extremely well documented in the "3.0 battery longevity" thread (this is #670)....
I took a freeway exit that I didn't need just so I could stop and get the picture.
In a little less than 9.5 years, and countless sets of rear tires. Has anyone got more (150K miles is about 250 km)? [ATTACH]
Offer him a ride in your Roadster and then see if he reciprocates. Seems nice, not pushy.
Here's an update for #541 (EU) from simonog. Thanks, Simon! This is one of the older batteries in the set and had moderate mileage on it, so...
Yup. I'm at 9+ years and 147K on mine. As others have pointed out, things break on the Roadster. I've had my PEM die (which seems to happen to...
OK, then more like a month ago. I'm at 37K miles. But the rest of you sill have a long while.
I think it was two years on the battery, in which case it expired last week. The warranty on the car expired forever ago.
#2 is a straight line because it's never driven, and the CAC only updates after some number of miles are put on. It's got 132 miles on the new...
Updates for #573 and #209 (first from its new owner). 209 is smack in the middle of the I-never-range-charge curve with a bunch of other cars at...
Yes. Make a USB with a directory called "VehicleLogs" in the top level (capitalization matters). Plug it in the car, and it will download the...
Here's an update with new data for three cars: #277 (EU), #255 and #670 (mine). There's most of a year's new data for the first two, which is...
Remember, this only happened when I was intentionally trying to get the battery to low SOC. A little while earlier it was Vmin 3.57, Vmax 3.65...
I managed to get Vmin down to 2.6V (and VMax 3.5V). I did this by parking the car and letting the AC/heat run. As soon as I noticed this, I...
Yes, NEMA 14-50.
I finally managed to make it into this thread! The guy taking the picture owns the Model S on the left, and was very interested in everything...
Here's the latest version of the graphs, with updated data from four cars: mine (670), and 2, 33, and 330(EU). Thanks for the data, slcasner and...
As others have said, the best way to evaluate the battery is the CAC. Follow the instructions to pull the logs, and then the parser app will show...
CAC going up after range charging is consistent with what I've seen both in my car and in the data. I suspect that it's just because the...
I think it's all three. And I suspect that there's really a plateau on the battery. My car has been holding at roughly the same CAC (~189) for...
Not only were there a lot of colors for the original Roadster, but Tesla would paint it any color you wanted for an extra fee. Someone got a...
I just ordered an el-cheapo cell tester from China. I'll get some LH HG2 cells and do some cycle lifetime tests. It'll take a month for the...
If we use 300 miles as one complete cycle (it's probably a little less, but roughly) then I'm a little over 100 cycles, and certainly nowhere...
Here's an update with more data for my car (670) and thebabydoc's new car (1434). I'm sorry, thebabydoc, that it's taken me so long to get back...
One thing I've discovered from looking at many people's R80 logs is that CAC decline is both a function of mileage and time, with time being the...
This might lead to your battery being unbalanced, because the time after it charges is when balancing happens. When you look in the logs (or in...
Your average brick does, so most likely so does your best. My average is 192.97, yours is 200.32, so they're not even close.
So it's an interesting question why the BMS thinks the capacity of the bricks varies so much. It would also be interesting to see the voltages...
It's also possible that #33 actually has a bad brick, and it's a special case. I should look at more cars and see how their balance is, but of...
From the last log I have for you, you're at 195.9 avg, 192.5 min, so not nearly as far off as #33.
No, they're not in the logs. All I have is the car's estimate of the min and average Ah capacity of the bricks, which as you observe is at best...
Here's a chart of #33's battery balance (ave brick - min brick, 0 is perfect) over time. You can see right at the end that it drops a little,...
Updating with data from slcasner #33, and a most recent few weeks of my car. #33 did multiple range charges and has its CAC jump up a few Ah....
So here's a hypothesis. The CAC algorithm doesn't get any data unless you range charge the car or run it to very low SOC. Otherwise, it's a...
Maybe. If you look at the pattern, you'll see it drop down to about 185 Ah and then climb back up to about 190Ah over and over. The climbs...
For some reason, the non-zoomed version of the by-mileage graph didn't upload correctly. Here it is. [ATTACH]