first extended drive in my 2014 Leaf

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rawlins02

Well-known member
Joined
Jan 29, 2017
Messages
99
Location
southern Delaware
I've had the car one week. Last night I drove 50 miles to an event. I was aware of a Level 2 charger 2 blocks from destination. Started the trip with 92% charge and GOM at 82 miles. I have all 12 bars showing on this 2014 Leaf S w/ 36,500 miles. Most of the route was highway and I averaged between 55-60 mph. Air temperature in upper teens. I did not run the heater on way there.

After 50 miles the battery was at about 30% and GOM had an estimated 25 miles remaining.

My car has a 6.6 kW charger. Over 3.5 hours at the Level 2 the battery accepted 17.6 kWh, up to 100%. Interesting that the battery showed it had around 30% of a charge but still gained 17.6 kWh. This would suggest it can hold > 22 kWh. The sign next to station said cost was $0.25 per kWh. Chargepoint shows no charge on my account. That would be nice.

I used the heater sparingly on the way home. Takes several minutes longer to warm up than I'd thought. Made 50 mile drive home, in 12 degree weather and light snow going 60-65 mph, up and down hills, with plenty of range to spare. Battery from 100% down to 30%. Averaging around 3.5 miles per kWh.

Pretty pleased with performance on this first adventure.
 
rawlins02 said:
I've had the car one week. Last night I drove 50 miles to an event. I was aware of a Level 2 charger 2 blocks from destination. Started the trip with 92% charge and GOM at 82 miles. I have all 12 bars showing on this 2014 Leaf S w/ 36,500 miles. Most of the route was highway and I averaged between 55-60 mph. Air temperature in upper teens. I did not run the heater on way there.

After 50 miles the battery was at about 30% and GOM had an estimated 25 miles remaining.

My car has a 6.6 kW charger. Over 3.5 hours at the Level 2 the battery accepted 17.6 kWh, up to 100%. Interesting that the battery showed it had around 30% of a charge but still gained 17.6 kWh. This would suggest it can hold > 22 kWh. The sign next to station said cost was $0.25 per kWh. Chargepoint shows no charge on my account. That would be nice.

I used the heater sparingly on the way home. Takes several minutes longer to warm up than I'd thought. Made 50 mile drive home, in 12 degree weather and light snow going 60-65 mph, up and down hills, with plenty of range to spare. Battery from 100% down to 30%. Averaging around 3.5 miles per kWh.

Pretty pleased with performance on this first adventure.

Thanks for posting. Those 6.6 chargers make a big difference. I wish I had one. I've been averaging 3.5 miles per kwh this winter too. In August, I was getting 4.8kwh. So, when the weather gets warmer, you'll have more range. I love the Leaf. So happy I bought mine last year.

By they way, if you have Eversource for your electricity, they are offering a clipper creek L2 charger for your home for $500. http://www.plugmyride.org This is the one: https://store.clippercreek.com/level2/level2-20-to-32/cs-40-32-amp-ev-charging-station it also comes with itron web enabled so you can track your charging.
 
Amped said:
By they way, if you have Eversource for your electricity, they are offering a clipper creek L2 charger for your home for $500. http://www.plugmyride.org This is the one: https://store.clippercreek.com/level2/level2-20-to-32/cs-40-32-amp-ev-charging-station it also comes with itron web enabled so you can track your charging.

Good to see Eversource making these available at that cost. I plan to use the car infrequently enough to make L1 at home viable. But at $500 the L2 might be worth investigating.
 
With your setup I'd figure ~30%/hr gain using a full power 30a EVSE, ~20%/hr with a 20a EVSE and ~15%/hr with a basic 16a L2 EVSE(or if you had the 3.6kw Leaf charger).
IMO the faster L2 is really worth it in cases like yours, without it in 3.5hrs I figure you'd have only gained ~50% charge, bringing you up to 80%. I guess since it only took ~70% for your one way trip you still would have been OK but I personally like to have more than a 10% cushion if possible and with the faster L2 it was easy to get a nice large cushion like you got, in hind site you could have run heat at a much warmer setting for comfort but again only with the faster L2 charger.
 
When you talk about the "GOM" do you mean the guestimator on the dash? Because the car has a much more accurate range estimator in the Nav system - assuming it's not an S. If it is an S, then subtracting about 30% from the range shown will give a fairly accurate estimate.
 
Was the miles/kWh meter reset before the trip ?
I will guess not, since the numbers would not make sense.

Say your battery is in excellent shape and has 22 kWh usable capacity
Since you left home with a SOC of 92%, you would have started with 22*0.92 = 20.24 kWh,
and 1.76 kWh 'empty'

Since the refill accepted 17.6 kWh, the trip consumed (17.6 - 1.76) = 15.84 kWh
That implies a consumption rate of (50/15.84) = 3.16 miles/kWh

It also means you had (20.24 - 15.84) = 4.4 kWh left in the battery upon arrival to the destination
so the SoC should have been (4.4/22) = 20%

Conclusion ?
You drove a lot more efficiently than 3.16 miles/kWh, and I suspect you do not have a 22 kWh battery capacity.

What does LeafSpy tell you regarding Ahr capacity ?
 
LeftieBiker said:
When you talk about the "GOM" do you mean the guestimator on the dash? Because the car has a much more accurate range estimator in the Nav system - assuming it's not an S. If it is an S, then subtracting about 30% from the range shown will give a fairly accurate estimate.

Yes on GOM. And it is an 'S' model. Subtracting 30% sounds like a lot. Are they that inaccurate?
 
SageBrush said:
Was the miles/kWh meter reset before the trip ?
I will guess not, since the numbers would not make sense.

Say your battery is in excellent shape and has 22 kWh usable capacity
Since you left home with a SOC of 92%, you would have started with 22*0.92 = 20.24 kWh,
and 1.76 kWh 'empty'

Since the refill accepted 17.6 kWh, the trip consumed (17.6 - 1.76) = 15.84 kWh
That implies a consumption rate of (50/15.84) = 3.16 miles/kWh

It also means you had (20.24 - 15.84) = 4.4 kWh left in the battery upon arrival to the destination
so the SoC should have been (4.4/22) = 20%

Conclusion ?
You drove a lot more efficiently than 3.16 miles/kWh, and I suspect you do not have a 22 kWh battery capacity.

What does LeafSpy tell you regarding Ahr capacity ?


I don't have LeafSpy. Salesman at dealer said they don't use it. So I do not know actual capacity.

Regarding efficiency during trip. I arrived at destination with about 30% on battery. So assuming 22 kWh capacity, estimate of usage would be

22*0.92 = 20.24
22*0.3 = 6.6

20.24 - 6.6 = 13.64 kWh used during drive to destination

50 miles / 13.64 kWh = 3.6 miles per kWh. Interesting. That's exactly what I guessed it to be after watching the efficiency readout during the drive. I'm planning on resetting the efficiency meter, after recording mileage and average efficiency, on the 15th of each month.

Unless I'm wrong, the fact that the battery took in 17.6 kWh when plugged in at 30% (~6.6 kWh of power) would suggest a fairly high capacity.
 
jjeff said:
With your setup I'd figure ~30%/hr gain using a full power 30a EVSE, ~20%/hr with a 20a EVSE and ~15%/hr with a basic 16a L2 EVSE(or if you had the 3.6kw Leaf charger).
IMO the faster L2 is really worth it in cases like yours, without it in 3.5hrs I figure you'd have only gained ~50% charge, bringing you up to 80%. I guess since it only took ~70% for your one way trip you still would have been OK but I personally like to have more than a 10% cushion if possible and with the faster L2 it was easy to get a nice large cushion like you got, in hind site you could have run heat at a much warmer setting for comfort but again only with the faster L2 charger.

Agree that having the 6.6 kW charger and the close access of an L2 station was ideal. And given the number of L2 chargers in my area, I'm thinking I'll be fine with this S, since it has QC package. The fact that the battery has held up well is really great.
 
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