SOC Setting?

[Max*]

Using the REST API, I see 350-352 kW sustained from a warm battery at 90% SOC and I cannot get much more than 310-320 kW at 50%.

For comparison:
90% SOC: 352kW (472hp)
50% SOC: 310kW (415hp)

So a 57hp is enough, for me, to justify charging at 90% and I don't see real battery range degradation after 18 months.

Hmm... I may need to reconsidering my charging ideas.

 

[Cyclone]

Using the REST API, I see 350-352 kW sustained from a warm battery at 90% SOC and I cannot get much more than 310-320 kW at 50%.

For comparison:
90% SOC: 352kW (472hp)
50% SOC: 310kW (415hp)

So a 57hp is enough, for me, to justify charging at 90% and I don't see real battery range degradation after 18 months.

I was simply going by the speedo in the power use/regen bar. I would be impress to see the UI is overstating the power usage this much -- however, I wouldn't be surprised as the speedo is using a progressive graph and makes estimations very hard. It would take a long time before I could get someone to film the speedo while I floor it as I'm not about to film myself doing it!

 

[beeeerock]

This thread is a good read on thermal management in the Model S. To directly answer your question, active cooling doesn't kick in until the battery reaches 55C, which isn't likely to happen simply from ambient summer temperatures. The only time the BMS steps in to actively cool the battery is during Supercharging, or if you're spending a day at a track.

Model S Overall Thermal Management

Fantastic thread - thanks very much!

 

[mknox]

Now at 28k miles, 90% gives me 231mi and I get 258mi at 100%. I see the degradation as minimal so why get a reduced power car everyday?

That's quite amazing, really. When my car was brand new, I never saw over 245 miles @ 100%. With a hair under 50,000 miles I now see 241 miles @ 100% and around 218-220 @ 90%.

 

[Kalud]

That's quite amazing, really. When my car was brand new, I never saw over 245 miles @ 100%. With a hair under 50,000 miles I now see 241 miles @ 100% and around 218-220 @ 90%.

I had 429km (267mi) brand new.

Here are the REST API data for my last charging sessions:

90% target, 373km (232mi) http://s13.postimg.org/ityx90def/june_2015_90_373km_232mi.png
100% target 415km (258mi) http://s21.postimg.org/f6riwyrfb/june_2015_100_415km_258mi.png

 

[clea]

I had 429km (267mi) brand new.

Here are the REST API data for my last charging sessions:

90% target, 373km (232mi) http://s13.postimg.org/ityx90def/june_2015_90_373km_232mi.png
100% target 415km (258mi) http://s21.postimg.org/f6riwyrfb/june_2015_100_415km_258mi.png

I haven't done a range charge in while but my 90% charge also nets me 374 km every morning (at 27 months and 46K km on 6.2 v2.4.239) ...