I just leased an SV Tech on Christmas eve 2020 and knew what I was getting into for 2 years - but also wanted to see exactly how bad things could get in my area - Northern California. I did a triangle between Half Moon Bay, Hollister EVgo, Seaside EVgo, Santa Cruz EVgo, and then back to HMB. Used the EVgo DC charge systems at each stop. I was either driving fast or connected to an EVgo DC system for the whole time which was about 7 hours total. Ambient temperature was around 57F the whole trip. I didn't have Leaf Spy at the time so I don't have specific pack temperatures but the back-to-back DC plus fast highway driving (60-75) is your worst case for overheating.
Location, ODO, Charge Level, Charge rate
Left Half Moon Bay, 1445, 100% @ 11am
- mostly highway at 50-65mph (via Highway 1, not 101)
Hollister, 1534, 30% => 60%, DC 44kW charge rate for 17 minutes = 13.2kWh
- slow country road 30-40mph & highway 50-60mph
Seaside, 1589, 13% => 76%, DC 31kW charge rate for 42 minutes = 20.15kWh
- mostly freeway at 70-75mph
- on the 70mph climb of the steep grade near La Selva, the turtle appeared with the high temp warning to slow down, assume pack temp was in the red
Santa Cruz, 1626, 41% => 57%, DC 15kW charge rate for 20 minutes = 4.84kWh
Santa Cruz, 1629, 57% => 60%, Level 2 6.6kW charge rate for 20 minutes = 1.2kWh
Half Moon Bay, 1676, 15% @ 6pm
- the pack temperature was at the top tick just at the red boundary from La Selva to Half Moon Bay
Works out to 231 miles using 73.4kWh.
Lessons learned... I was too impatient at Hollister - should have waited a few more minutes for 80%, and then the second DC would have been less painful, and the 3rd DC may not have been necessary. I'm going to redo the trip with a smarter charging approach and see what I end up with.
I'm posting to let people know what a worst case trip is like where you are literally either driving fast or doing a DC charge for 7 hours. Not complaining so the Leaf police don't need to write me a ticket. Figures are approximate - I didn't recalculate for additional accuracy.