inphoenix
Posts: 271
Joined: Sun Aug 30, 2015 8:54 am
Delivery Date: 30 Sep 2015
Location: Phoenix! AZ

New Leaf : some observations on charging

Tue Apr 25, 2017 12:49 pm

It was time for the old Leaf to go back (lease ended) so it was replaced with a new 2017 Leaf S30. I didn't plug in the OBD II yet, so no stats from LeafSpy but here are some observations and a question. I drove about 60 miles on the freeway (about 70/75 mph) to get home with 22 miles left on GOM. (I know freeway driving would mess it up so wasn't too concerned about the lower number).

I set the charging time for the car to be ready at 5 AM and plug it in. When I woke up, I see two emails from my EVSE which confirmed that it started charging at 2:33 AM. But here's where it gets interesting. Second email at 3:06 AM says "Charging added 24.074 kWh in 33 min 2 sec". What?? Did they upgrade the OBC and forgt to tell us? Something doesn't sound right as it would take about 3 hours to charge this much on my previous Leaf. The car was fully charged and GOM showed 141 miles (124 with AC on).

Any thoughts on this? Does it need to go through a few charge cycle before it can spit out more accurate info?

..... and yes, I will get the LeafSpy stats soon. :)
Last edited by inphoenix on Tue Apr 25, 2017 1:26 pm, edited 1 time in total.
2014 S/QC - dropped first bar at 28K, second at 32.5K, Lease ended in April '17.
2015 Tesla MS
2017 S/QC - 2 year lease (going back in April '19)
JuiceBox Pro 40A EVSE

LeftieBiker
Posts: 6126
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 31 May 2013
Location: Upstate New York, US

Re: New Leaf : some observations on charging

Tue Apr 25, 2017 1:16 pm

The first, rough guess is that you have one or more bad cells, and they are screwing up both charging and range.
2013 "Brilliant Silver" SV with Premium Package and no QC, and 2009 Vectrix VX-1 with 18 Leaf cells.

The most offensive, tasteless phrase in use here is "Pulled the trigger." I no longer respond to posts that use it.

alozzy
Posts: 348
Joined: Fri Jan 20, 2017 4:25 pm
Delivery Date: 18 Jan 2017

Re: New Leaf : some observations on charging

Tue Apr 25, 2017 3:59 pm

Do you recall what the SOC% showed when the GOM was indicating 22 miles remaining? Based on driving for about 60 miles at freeway speeds, you used up at least 15 kWh of pack charge, so you should have been at around 50% SOC or less (assuming of course that you started at 100% SOC) on a 30 kWh battery.

You mentioned though that your EVSE indicated that
"Charging added 24.074 kWh in 33 min 2 sec"


Bizzare! at 6 kw charging rate, at most it would have added roughly 3 kWh to the pack. Sounds like an issue with the EVSE, as it wouldn't have been relying on the Leaf to track the kWhs it delivered.

Maybe the Easter bunny brought you a 50 kW DCQC :lol:
Canadian with a US 2013 Ocean Blue SV + QC, purchased 01/2017 in WA
Zencar 12/20/24/30A L1/L2 portable EVSE
1-1/4" Curt #11396 hitch
After market, DIY LED DRLs
LeafSpy Pro + Konnwei KW902 ELM327 BT OBDII dongle
Big grin, enjoying my first BEV :D

inphoenix
Posts: 271
Joined: Sun Aug 30, 2015 8:54 am
Delivery Date: 30 Sep 2015
Location: Phoenix! AZ

Re: New Leaf : some observations on charging

Tue Apr 25, 2017 6:53 pm

So the thought of bad cell scared me enough to hook up the OBD II and get some data from the car. Here are some screenshots.

http://imgur.com/a/p5U4x (three images)


The car shows 87% battery with 129 miles on GOM.

SOH = 100%
AHr = 82.34
Hx = 100.13%

The only other thing I noticed that I had the config data for the old leaf in my EVSE app. I just updated that today so let's see what happens tomorrow. Not planning to charge it tonight.
2014 S/QC - dropped first bar at 28K, second at 32.5K, Lease ended in April '17.
2015 Tesla MS
2017 S/QC - 2 year lease (going back in April '19)
JuiceBox Pro 40A EVSE

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