Update:

New topic here: http://my.teslamotors.com/forum/forums/supercharger-time-calculator-now-... I was able to work around some problems and create a calculator.

----------

Hi,

I just completed a long research into supercharging times. I used the following videos.

Bjorn video 1

Bjorn video 2

KmanAuto video 1

KmanAuto video 2

By that I mean, I took lots of (30-40) range and time numbers from each video and put those on a spreadsheet. Then I compared Bjorn's 85 kWh supercharge times to KmanAuto's 85 kWh supercharge numbers. It was an exact match:

All 85 kWh models have the same battery. Therefore they will all charge to same percentage at same time. For example all 85 kWh batteries will charge to 85% in 60 min. However in terms of accumulated miles, 85% means different things between different 85 kWh models. I created a chart that shows all of them.

Also Bjorn and KmanAuto uploaded S60 supercharge videos. I compared those too. Those didn't match. There was a year difference between the two S60 supercharge videos. Apparently Tesla changed something and it made the S60 supercharge a little slower than it used to. I wasn't sure so I took the average of those. I added that to the chart too. I added S70D data too. This is based on consistency between different trendlines created by the chart. The spreadsheet creates the trendlines (the coloured curved lines) automatically.

Conclusion:

The green graph on the supercharger page is not bad but it is slightly optimistic oversimplifies the slowing down near the end of supercharging. In this image the blue line shows data from Bjorn and KmanAuto's 85 kWh supercharge session. The green line is the graph on the supercharge page.

The zoomed in version of the final graph looks like this:

Full size: http://i.imgur.com/J1GoBSn.gif

Source: You can find the Google spreadsheet

What this means in terms of actual supercharging sessions, is explained here:

In these tables I made the following assumptions:

1. The distance between superchargers is 115 actual miles = 132 rated miles on average

2. You want to arrive with 40 rated miles at each supercharger

3. You want to leave the supercharger with 40+132= 172 rated miles

The table shows how many minutes it will take to supercharge from 40 to 172 rated miles. For example in S85D it takes 30 minutes, in P85D 33 minutes, in 70D 37 min, in S60 50 min. These are for one supercharging stop. The table shows what will happen if you are travelling longer and need to visit more superchargers.

The second table shows time differences compared to S85D. For example, we just saw that S85D would take 30 minutes to supercharge from 40 to 172, whereas P85D would take 33 minutes. That's 3 minutes difference for P85D, 7 min for 70D, 20 min for S60.

You can find the Google spreadsheet here. All those images came from that file.