Hypermiling in a Model 3

[Nagaman]

Being retired we do a lot of ‘pottering around’ @ 80-90 kph and just wondering if anyone has done a max range test of any sort, particularly in the SR+ ?.

[MrD]

In another forum "Lex" posted actual 350kM range in a SR+, two adults, 2 children with luggage at 90kph on a coastal drive. Of course, you should only 'Hypermile' when absolutely necessary (100% to 0%) and generally aim for 90% to 10% for battery health, contingencies (head winds, roadwork or other diversions) and stress free touring.

[Nagaman]

In another forum "Lex" posted actual 350kM range in a SR+, two adults, 2 children with luggage at 90kph on a coastal drive. Of course, you should only 'Hypermile' when absolutely necessary (100% to 0%) and generally aim for 90% to 10% for battery health, contingencies (head winds, roadwork or other diversions) and stress free touring.

Thanks Chris, I’m more interested in the average WH/km rather than 100%-0% range.
One interesting (to me at least) example is a trip over the 6000 ft Mt Hotham with a relatively short, steep/slow windy climb and a faster, longer and straighter descent.
Is one direction better than the other for total range?.

[mikedufty]

In theory the steep climb - gentle descent should be better, since you are not wasting the power that went into gaining altitude on brakes/regen inefficiencies. Would be more interesting to hear from someone who has tried it though.
On the same theory on a bicycle I should put in max effort on the uphills and just coast down but I always do the opposite because it feels better.

[MrD]

Hi Guys - I can confirm that a steep climb at gentle speed....then a long gradual descent works best for Hypermilling. My example is Hartley to Penrith (compared to the reverse) - with a short steep climb at 60kph to Mt Victoria....then the long coast downhill to Penrith. A long downhill descent at the end of a trip is useful when planning a Hypermilling trip - such as reaching the fast chargers at Bathurst from Yetholme (25kms) with virtually no depletion on your predicted range.

[Nagaman]

So does one pedal driving regeneration cope with the steep bits or do you need the wasteful friction brakes as well ?.

[dgh853]

Tesla Bjorn did a range test of an SR+ at 90kph at https://www.youtube.com/watch?v=Gpvg2f7HyQs. Average Wh/km was 122.

You can use https://abetterrouteplanner.com/ and set speed limits and your preferred routes to see what it believes the efficiency and range will be. I've found it to be pretty accurate for the Model 3 SR+.