DaveinOlyWA
Posts: 13338
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Feb 2018
Leaf Number: 314199
Location: Olympia, WA
Contact: Website

Re: GCC: INL study suggests fast charging can take longer in cold temperatures

Fri Aug 10, 2018 1:18 pm

WetEV wrote:
alozzy wrote:Good luck trying to get your battery more than a few degrees above ambient during winter, unless you are driving around a lot. When it's cold out, DCFC charging is going to be SSSSLLLLOOOOWWW unless you're lucky enough to find an L3 EVSE in a heated parkade.


I took a long trip in winter from near Seattle to Vancouver area. The first QC was slow. The second, third and fourth QCs were fairly fast.


Or you can plug in for 5 minutes, heat the pack, unplug and restart the charge.
2011 SL; 44,598 miles. 2013 S; 44,840 miles.2016 S30 deceased. 29,413 miles. 2018 S40; 11,987 miles, 485 GIDs, 37.6 kwh 110.89 Ahr , SOH 96.00, Hx 115.22
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

alozzy
Posts: 1205
Joined: Fri Jan 20, 2017 4:25 pm
Delivery Date: 18 Jan 2017
Location: Vancouver, BC
Contact: Website

Re: GCC: INL study suggests fast charging can take longer in cold temperatures

Fri Aug 10, 2018 3:15 pm

:roll:

Image
Vancouver, CA owner of a 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
Loving my first BEV :D

arnis
Posts: 906
Joined: Sat Jan 23, 2016 3:21 pm
Delivery Date: 23 Jul 2014
Leaf Number: 015896
Location: Estonia, Europe

Re: GCC: INL study suggests fast charging can take longer in cold temperatures

Mon Aug 20, 2018 9:52 am

Leaf always limits DC charging according to temperature reading in the pack AND highest voltage reading.
AFAIK, maximum voltage allowed is 4.13V for Leaf.
With warm pack, my Leaf starts to throttle at around 63%. This is the moment when Leaf actually charges at 396*120=47kW.
With cold pack, voltage limit arrives way way sooner. And there is also another limitation with very cold pack even without voltage
limitation.

Difference is around 50%. Best case scenario 24kWh Leaf gets 6-6.5kWh within 10 minutes, bad (not worst) case 3.6kWh within 10 minutes.
Both at low state of charge (less than 20%).

Charging rate can increase during charging session as pack warms up while charging. No need to unplug and try again.

Tesla is even worse. It will NOT CHARGE at all when chemistry is below freezing (literally, 0*C). I mean 0kW. This includes regen.
Short range EVs <30kWh -- Medium range: 30-60kWh -- Long range: >60kWh
Charging: Trickle <3kW -- Normal 3-22kW -- Fast 50-100kW -- Supercharging >100kW

GetOffYourGas
Posts: 1945
Joined: Tue Dec 20, 2011 6:56 pm
Delivery Date: 09 Mar 2012
Location: Syracuse, NY

Re: GCC: INL study suggests fast charging can take longer in cold temperatures

Mon Aug 20, 2018 12:23 pm

alozzy wrote::roll:

Image


:lol:

FWIW, I agree that this whole "study" is absurd. It's well-known and didn't need (probably tax-payer-) money thrown at it.
~Brian

EV Fleet:
2011 Torqeedo Travel 1003 electric outboard on a 22' sailboat
2012 Leaf SV (traded for Bolt)
2015 C-Max Energi (302A package)
2017 Bolt Premier

Return to “Batteries & Charging”