# Forum

Bli med i fellesskapet

Long Range Road Trips...

Hey all!

We are planning on taking our Roadster on a 280 mile road trip in July that will take us from Sacramento to Mount Shasta. I’m estimating the 280 miles on not only physical door to door, but the usual side trips that go with road trips.

The questions I have for you are:

- Has anyone attempted this run yet?
- How did you do it?
- Was there a range cost with regards to the almost 2500 feet elevation change involved?
- Did you use a J1772 converter? How practical was it and how long did it take to charge?
- Any advice beyond what I have already touched on?

Any help would be appreciated.

--- Cherif

A couple more tips for long-range-road-trippers that are in a hurry to get somewhere is to not try to fully charge if you don't need to in order to get to your next charging location. The charging current above 80% or 90% charge is a lot slower so you may have to wait another half hour or more for that last 10%.
Once your charging current drops below the maximum (70 Amp for Tesla HPC, 40 Amps for UMC on a NEMA 14-50 at RV parks, or 30 Amps at most J-1772), you're better off getting back on the road to your next charging location where you can charge at the full current.
Regarding charging stations: Some operate at 208 volts and others at 240 volts. Some may have line drops and may not even get that high. Remember that a 240 volt charger will charge ~13% faster than a 240 volt one.
Remember that charging speed is proportional to the power available. Power (Watts) = Voltage (Volts) X Current (Amps).

Right. I've assumed that I'd go for range mode charging on overnight stops and standard on the rest. That is, if I ever get my Model S.

E&N;
"Remember that a 240 volt charger will charge ~13% faster than a 240 volt one."
Trying to guess what the 3rd number was supposed to be. Failing.
;p

I think he(they) meant 212V. 13% above that is about 240V.

Yeah, the 'rithmetic is obvious at that level -- but I've never heard of such a voltage standard. Seems like an odd comparison to make.

For you math wizzes out there: the 3rd number should have been 208 volts. 208 Volts is very common in the US as it is one leg of a 3-phase circuit. Public charging stations often just use 208 volts as it obviates the need to put in a transformer. Unfortunately, the result is slower charging. Of course, we also often see reductions from both 208 volts and 240 volts because of line losses.

So ... waiting with bated breath ... for Cherif's trip report ;-0

I just got back from a road trip where I got to use my new J-1772 adapter. Spent over 30 hours charging, averaged a little over 21 miles of charge per hour. All but one location had voltages between 195 - 205 volts. Probably started at 208 before the line drop.

Cherif -

I am in the Sacramento area, just 30 miles east. You can find me over on the TeslaMotorsForum.com under the same user name. Shoot me a private message over there if you see this post.

Best regards,
Bonnie

My experience is that J-1772 chargers are poping up everywhere and most are only 208V (one leg of 3 phase power) and 30 amps. I have yet to find a J-1772 above 30 amps. The DOT money only specifies a 30 amp unit and it seems like that is what is being put in.

While charging this way is painfully slow it definately beats 110V.

Here's a blog about a coast-to-coast trip I'm making. Will include some tables of charge times, range, etc. (I still have just the old MC...)

It may be worth noting that there is a guy called Rafael De Mestre who is currently on a journey with his Tesla around the world. He is sharing his experience via his website:
http://www.1e-race.com/

From the text history on the /history sub-page:

﻿11.5.2012 RACE STARTED in Barcelona - exact 3 months later than the French - including the risk to fail due to missing papers for US.
15.5.2012 Arrival in Strasbourg
17.5.2012 Arrival in Cologne
18.5.2012 Ready to transport in Frankfurt - US insurance still missing. Without the insurance the car will be blocked in NY ...
21.5.2012 Yeah! Got the US insurance!
22.5.2012 Car and driver in NY now
23.5.2012 Departing heading west
05.6.2012 Arrival in San Francisco - China drive through license still not available
07.6.2012 Waiting in LA for transfer - China drive through license for 25.6. confirmed - will loose [lose] 14 days ...
17.6.2012 Car arrived China. Following the newest calculations I have to drive 400km per day starting with 26.6. to reach Barcelona 80 days after the start, race turns to a mission impossible ...﻿

I don't know the route and charging circumstances, but I'd have to agree that doing the full range per day is pretty chancy. Keeping the speed below 80 kph might help with range, without much time penalty.

Nice guy. And entertaining! I had dinner with him, my son, and a couple of other Sacramento-area Roadster owners the night before he arrived in SF.

Damn. Bad news for a around a globe drive. Apparently a "pileup" caused by some BMW seven cars ahead of this one (based on explanation on facebook page).

Close enough for government work: 23,400 miles! Give him the award anyway.
>:)

Seems like he still wants to finish anyway, even if two or three weeks late. Attempts are made to repair his Roadster...

Just tweeted that car will be ready at 17h (probably meaning 5pm german time) today. No weeks, just three days after the crash. Great job Tesla!!

Here is more news on the 'round-the-world race:
http://www.teslamotors.com/forum/forums/just-600-miles-short-driver-ok