How far have you driven in one day? How fast?

[David99]

So, how long does it take to charge at a super charger? From 10% ish to 100% in an S90D?

You really don't want to charge to 100% if you are on a road trip charging st Superchargers. It charges really fast in the beginning and as you get closer to 100% the slower it gets. The last 10% are especially slow. The ideal is to arrive at a relatively low battery level and then only charge as much as you need (plus some buffer) to make it to the next Supercharger. This way you always stay within the fastest charge rate.

 

[RYCO]

Ok. But how long are you actually there? From say 10% to 90%? 10 min, 30 min, 2 hours?

 

[David99]

Ok. But how long are you actually there? From say 10% to 90%? 10 min, 30 min, 2 hours?

10% to 90% would be about 40-50 min depending on what car you have.

 

[RYCO]

Thanks David99. I have a freshened S90D

 

[MyJoule]

On my long trip to Indiana in 2015, I drove from Santa Rosa NM to Topeka Kansas in one day. It was too far, especially since I was trying to stay ahead of a spring storm and the Perry Supercharger was down that day, and I had to spend an hour at an RV park just over the border in Kansas. I think the distance that day was 720 miles and I averaged right at 50MPH including charging for the day. 400 to 425 miles in one day is about the right amount. you start fully charged, stop for lunch and get a full charge mid day and then finish the day needing a charge. Of course the superchargers would have to be spaced just right for that to occur, so you can do it with a short 1st stop, a longer stop around lunch and finally a mid afternoon short stop. Stopping for the night somewhere you can fully charge before morning. With the filling in of the supercharger network , 400 mile days should become very easy anywhere in the US pretty soon, it's almost that way already, except for I-10 in West Tx, NM and AZ.

 

[David99]

Thanks David99. I have a freshened S90D

Here is a video of a 100D charging to 90%. It should be very similar to the 90D.

If you start at 10% it will take 55 min to charge to 90%

 

[Missile Toad]

@David99 That was, hands down, the most informative video I've seen here on the forums, and I've seen dozens. Well done!

My favorite take aways from this October 2016 video:

1. You can go about 10MPH above the yellow 'slow down' warnings;
2. Never let the predicted SOC graph touch the 0% line;
3. Avoid skipping chargers unless they are bunched up <50 miles apart;
4. Higher road speeds are best when relying on Superchargers;
5. Avoid fully filling the battery, except overnight;
6. Trip graph accounts for climate controls;
7. Going to max rated PSI on the tires gives 6%+ more range.

 

[WannabeOwner]

Ok. But how long are you actually there? From say 10% to 90%? 10 min, 30 min, 2 hours?

P90D:.

10% - 60% 5 mins per 10%
60% - 70% 7 mins
70% - 80% 9 mins
80% - 85% 6 mins
85% - 90% 7 mins
90% - 95% 12 mins
95% - 100% 28 mins (i.e. 100% first shown)
100% - 100% 24 mins (i.e. balancing of cells)

so Supercharging to 60% is the sweetspot for me

 

[Chrisizzle]

the faster you go in a tesla the longer it takes to get there.

This is not accurate but you must have the nerve to arrive at each supercharger at 0% charge.

Consider the charge speed with an empty battery is easily 600km of range per hour. I don't know about you, but I can't drive that fast. So, the fastest point-to-point times mean pulling in empty and charging just long enough to get where you're going.

I read about some Tesla drivers who always want 20% safety buffer. I can't fault the wisdom, but they are charging at a reduced speed right off the bat.

The road trip I posted earlier meant I had no choice but to roll in empty (once 5km past 0% with warning lights flashing and speed severely limited). So, I got more comfortable than I should be with the bottom end of the battery and I have complete faith in my Tesla's range predictions.

 

[jbcarioca]

...
.
I read about some Tesla drivers who always want 20% safety buffer. I can't fault the wisdom, but they are charging at a reduced speed right off the bat.

The road trip I posted earlier meant I had no choice but to roll in empty (once 5km past 0% with warning lights flashing and speed severely limited). So, I got more comfortable than I should be with the bottom end of the battery and I have complete faith in my Tesla's range predictions.

I am one of those 20% people. Zero question, I spend more time at charging stations than I would were I to have a higher risk tolerance. I don't have any risk tolerance for low SOC, and never did for ICE fuel reserves either. Maybe being an airplane pilot trained me to have an acute sense of risk from the unexpected.

The many situations of accidents, unexpected weather, ICE'd charge stations, inoperative ones, etc all make me want reserves and a known alternate; always. Sure, the alternate planned beforehand recalls IFR trip planning. I have had to use my alternates only twice.
As for running to zero or close to it in order to save a few minutes, not for me!

 

[twonius]

Yeah I blew past the Prim Supercharger last week thinking I'd make it to Vegas no problem with 9% to spare. 5 minutes later the estimate dropped to 3% and then 0%. Had to stop at a Type 2 at the M casino for 30 minutes just to get enough to make it to the SC.

Note the temperature was 40F and It was raining pretty hard, so it's possible I should've looked up headwinds etc. before pushing it this far.

From now on I'll probably do a full charge in Barstow but I've got a software limited battery so I'm still pulling 45kw at the top end so it's worth it.

 

[kort677]

Y
Note the temperature was 40F and It was raining pretty hard, so it's possible I should've looked up headwinds etc. before pushing it this far.

that's a good assessment, wind, temps and precipitation all can have big negative impacts on range. You could have slowed down and drafted someone to conserve your power.

 

[twonius]

that's a good assessment, wind, temps and precipitation all can have big negative impacts on range. You could have slowed down and drafted someone to conserve your power.

I was drafting a Toyota Minivan with a ski box most of the way there, which was great. Unfortunately even at 55 I wasn't going to make it, and at that point the trucks are going faster. Drafting Semis does really help the consumption though. I did it this summer and got down to 200 Wh/mile @ 55-65 mph.

Maybe I could've said damn the torpedoes and gone for it but I had already missed my flight at that point due to a 2 hour traffic jam in the mountain pass so if I was ever going to have to give up and slow charge, this was the time to do it. I had to call Delta to reschedule the flight anyway.

 

[Bridor]

2,270 miles in 50 hours - single driver with three children under 12. Left Saturday morning at 6:30 am and pulled into the Ark Encounter in Kentucky at 8:30 am on Monday. I just took cat naps at the superchargers at night. I reached speeds up to 120 miles per hour at times (no other traffic on the road), but I averaged about 75 mph in order to make the best use of the electricity.

Brent