planet4ever wrote:But you are suggesting more than 10% loss in (stored energy) - (recovered energy), which seems astonishingly high to me. All that "lost" energy must be converted to heat, no? Since the LEAF battery has no active cooling, I would think that would make it heat up rapidly under load, such as when climbing a mountain. Why has no one reported this?
Because that heat isn't lost in the batteries - it's lost in the inverter and motor. Basically the LEAF's batteries have an extremely low internal resistance.
The fact that the pack is able to supply 100% power all the way down to near empty (turtle mode) and the lack of any active cooling (not even a fan to circulate air in the pack!) supports this. No one has reported any user-visible change in battery temp under load. I suspect that it's measurable, but it will take CAN-bus eavesdropping and some spirited driving to see it.
Back on topic - I drove a bit over 81 miles yesterday, mostly highway at 65 mph with the AC on in the mid-70s in recirc mode.
Got to destination ~38 miles away using just over 6 bars and dash indicated 4.0 mi / kWh. GOM indicated just right around 40 miles remaining IIRC.
L1 charged for 4 hours picking up 3 bars and drove ~44 miles home - took a bit of a detour to take the scenic route home - dash now indicated 4.2 mi / kWh (thanks to the scenic route, dash was at 4.0 mi / kWh before we left the freeway), had one bar remaining and 13 miles on the GOM. All as planned.
I'm a bit surprised at the dash indicated mi / kWh - the last time I took a very similar trip I took it at 60 mph and recall getting very similar mi / kWh numbers. At 65 mph I would have expected 3.6-3.8 mi / kWh indicated - perhaps the car is breaking in a bit?