Monday, January 5, 2015

I want 240V!

Now in the dead of a Montana winter, I really wish I had 240V charging at home.

120V covers me well, but during the reduced-range cold weather driving season it sometimes leaves me wanting. Take this morning for example.

This morning I ran several errands: dropped two kids off at two different schools, made a McDonald's stop, visited Grandma, and then returned home.  Total miles covered according to google maps: 8.8.  Total charge remaining in my Leaf: 50%.

A view of my driveway
First of all, yikes, that is awful range.  If I assume a constant ratio of miles to discharge that gives me a whopping 18-20 miles of range.  Bear in mind that the outside temperature is -8C (18F) and I was running the heater and A/C (for defrosting the windshield) almost the entire time.  But this is real-world use in a cold climate.  Practically speaking I have to operate the defrosting system.  Also I'm not going to freeze my family.  It's Montana, the heater needs to be turned on.

Upon returning home I plugged in as a normally do.  In the back of my mind I'm thinking, "Do I have enough charge to make another errand run?"  The next errand would be to the grocery store, which would be a 6.4 mile round-trip.  Plugging into 120V for two hours does not give me confidence, it gives me range anxiety.  Thus my desire for 240V.  I'm beginning to see why Nissan vetted prospective owners up front to insure they had 240V.

Back to the range issue, I confess that this is one of the first range measurements I've made this winter.  I realize I did not run the car down to low-battery warning, but I ran it to 50%.  In medicine they often only take your pulse for 15 seconds before extrapolating to the minute...can I be that far off with my 18-20 mile range estimate?

Starting this morning at 100% my guess-o-meter said something like 42 miles of range using climate control so bringing the car to 50% after 8.8 miles seems like a big difference.  It may be the Leaf is using the temperature in the considerably warmer garage to make its range estimate.

Because I live in a small town, I can and do get away with a bunch of low-mileage trips.  My big work commute is only 16 miles round-trip.  And of course when we emerge from the depths of winter I expect a tremendous range gain.  I would still love to have 240V in the winter!

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