one stop would be possible - 65 is going to be better than 70 for range - aerodynamic drag is extreme after 40 mph and has squared component - for comfort I would plan on 2 30 min stops for each trip all the way to LA…watch for head winds that will be the biggest problem for you.
see my posting about my directly experience driving form SJ to SLO and back…
http://www.chevybolt.org/forum/154-...oday/11649-san-jose-san-luis-obispo-bolt.html
for EV road tripping there are factors that you have to be considered
1. Speed
2. Head Winds
3. Temperatures
4. Cabin HVAC settings
5. terrain
range can only be maximize if the following is true:
1. speed is pretty constant 65 or lower
2. terrain is flat
3. air temps are 70f or cooler, but not too cool
4. cabin temperature is minimally maintained
5. you don't encounter a lot of stop/go
6. calm day with out too much wind
speed kills range - let me repeat - speed kills range due to the extra aero drag - you'd be surprised how much further you can go by shaving 3-7 mph off your cruise speed - and there is this strange effect - since you use less energy going slower, you don't have to stop as long at the charger once you get there, so your average trip speed actually goes up by having shorter/fewer charging stops - basically you lose more time stopping/charging than you gain by driving faster…
head winds devastate range - watch your usage and pay attention to what your kw usage is when cruising, if it's higher than normal it could be because of head winds
low temps (below 40F) cause range loss
aggressive cooling/heating can eat a lot of range
hills can be tricky - if your battery is depleted at the bottom of a hill - you might have enough charge to get to your destination, but not enough to get to the top of the hill and benefit from the regen on the other side…
it's always best to know where your charging points are and monitor your range closely - if it looks like you're not going to make it stop and take a break at a charging point to get some additional piece of mind - the drive to LA should be a 2 stop trip maximum and 1 stop if all goes well.
EV road tripping is also easier once you get over the mind set of "filling up" - you can have a 10 minute stop at fast charger to give you just that extra buffer to make the trip go smoothly…it's like charging you phone in the car when you are out driving - you don't wait until you phone is full before you get out of the car, you just take what ever charge you can get in the time it was plugged in.
the plug-share app (and others) is your friend for knowing what your charging options are during your travels - and check-in so that others know you've found a working charger.
for road tripping I consider the following essential for the EV road warrior but YMMV - this is the boy scout approach - be prepared…
1. good mobile charger in car with lots of plug-adapters for 120/240 volts plugs I may need to use
2. a Tesla to J-1772 adapter so I can use Tesla chargers if I have do -
http://shop.quickchargepower.com/JD...197E1DA1C863BD6C90B834B811C56.p3plqscsfapp005
3. a device with Plug-share installed on it along with other charging network apps so that I can find/use chargers should I need them
4. existing accounts with most of the charging networks: chargepoint, blink, EVgo, greenlots so I can use any commercial chargers I might encounter
5. high quality 20 AMP extension cord with a NEMA 5-15/5-20 plug/adapter
6.
https://www.evtripplanner.com is also your friend - you can ball park your trip by using the Tesla Model S 60 or Nissan Leaf settings - and evtripplanner will tell you how much kWh you'll use and it factors in temperature and terrain - I'm not saying it's exact - but evtripplanner says you're going to need 95 kWh to get someplace it's not wrong by more than 10% - and it will show you segment by segment how much power you'll use going up hill and how much you'll gain going back down hill.