jmurtagh13
Posts: 32
Joined: Sun Nov 01, 2015 4:54 am
Delivery Date: 10 Mar 2018
Leaf Number: 300844
Location: Atlanta GA

Re: The 40KWH Battery Topic

Sat Jan 16, 2021 7:05 am

DougWantsALeaf wrote:
Fri Jan 15, 2021 2:43 pm
Whats the climate where you live? Is car garaged?
I live in Atlanta, yes it's hot here in the summer. The car is parked under a large tree so it does not get any direct sun. The battery temperature stays mostly between 80 and 85 Deg. during the summer. During the work week the car is in a parking garage during the day.
2018 Leaf March 10, 2018
34 months, 24,732 miles
SOH 88.84

jmurtagh13
Posts: 32
Joined: Sun Nov 01, 2015 4:54 am
Delivery Date: 10 Mar 2018
Leaf Number: 300844
Location: Atlanta GA

Re: The 40KWH Battery Topic

Sat Jan 16, 2021 7:10 am

SageBrush wrote:
Fri Jan 15, 2021 5:13 pm
jmurtagh13 wrote:
Fri Jan 15, 2021 4:56 pm
I set my car time to the following settings, the "Full charge has priority" is the key one. I then have a timer on my charger that shuts it off at 7:00am. Then regardless of the charge level by 7:00am it will always be at or about 70%. I only charge at 3KW so my stop time is way out to 11:00am but if you're charging at 6KW it would probably by more like 10:00am for 70%
I like it !
Clever.

To be clear for others, 'charger' refers to the EVSE
Yes that's correct, my bad.
2018 Leaf March 10, 2018
34 months, 24,732 miles
SOH 88.84

SageBrush
Forum Supporter
Posts: 5787
Joined: Sun Mar 06, 2011 2:28 am
Delivery Date: 13 Feb 2017
Location: NM

Re: The 40KWH Battery Topic

Sat Jan 16, 2021 8:13 am

jmurtagh13 wrote:
Sat Jan 16, 2021 7:10 am
SageBrush wrote:
Fri Jan 15, 2021 5:13 pm
jmurtagh13 wrote:
Fri Jan 15, 2021 4:56 pm
I set my car time to the following settings, the "Full charge has priority" is the key one. I then have a timer on my charger that shuts it off at 7:00am. Then regardless of the charge level by 7:00am it will always be at or about 70%. I only charge at 3KW so my stop time is way out to 11:00am but if you're charging at 6KW it would probably by more like 10:00am for 70%
I like it !
Clever.

To be clear for others, 'charger' refers to the EVSE
Yes that's correct, my bad.
No worries.

If I may clarify one other sentence of yours for others --
"Then regardless of the charge level by 7:00am it will always be at or about 70%. "
means regardless of the starting SoC, the car SoC will be at 70% at 7am.

jmurtagh is taking advantage of the predictable and consistent time it takes his EVSE to increase the car SoC from 70 to 100%. As I said -- Clever.
Last edited by SageBrush on Sat Jan 16, 2021 10:31 am, edited 1 time in total.
2013 LEAF 'S' Model with QC & rear-view camera
Bought Jan 2017 from N. California
Two years in Colorado, now in NM
03/18: 58 Ahr, 28k miles
11/18: 56.16 Ahr, 30k miles
09/20: 54.3 Ahr; 38k miles
-----
2018 Tesla Model 3 LR, Delivered 6/2018

SageBrush
Forum Supporter
Posts: 5787
Joined: Sun Mar 06, 2011 2:28 am
Delivery Date: 13 Feb 2017
Location: NM

Re: The 40KWH Battery Topic

Sat Jan 16, 2021 8:34 am

jmurtagh's solution is elegant in that he doesn't have to calculate anything, or remember a particular time to plug/unplug.
He plugs in when he arrives home, and is DONE.

He did not say how he turns off power at the EVSE at 7am. I think the JuiceBox has that feature, but others with dumb EVSEs could wire in a timer that costs ~ $50
2013 LEAF 'S' Model with QC & rear-view camera
Bought Jan 2017 from N. California
Two years in Colorado, now in NM
03/18: 58 Ahr, 28k miles
11/18: 56.16 Ahr, 30k miles
09/20: 54.3 Ahr; 38k miles
-----
2018 Tesla Model 3 LR, Delivered 6/2018

SageBrush
Forum Supporter
Posts: 5787
Joined: Sun Mar 06, 2011 2:28 am
Delivery Date: 13 Feb 2017
Location: NM

Re: The 40KWH Battery Topic

Sat Jan 16, 2021 8:45 am

Learjet wrote:
Fri Jan 15, 2021 7:56 pm
You get the point...works for me.
Heh.

There would be revolution in the air if my wife had to fiddle with the charge timer settings after every drive. Even I would tire of that requirement pretty darned quick.
2013 LEAF 'S' Model with QC & rear-view camera
Bought Jan 2017 from N. California
Two years in Colorado, now in NM
03/18: 58 Ahr, 28k miles
11/18: 56.16 Ahr, 30k miles
09/20: 54.3 Ahr; 38k miles
-----
2018 Tesla Model 3 LR, Delivered 6/2018

jmurtagh13
Posts: 32
Joined: Sun Nov 01, 2015 4:54 am
Delivery Date: 10 Mar 2018
Leaf Number: 300844
Location: Atlanta GA

Re: The 40KWH Battery Topic

Sat Jan 16, 2021 9:14 am

SageBrush wrote:
Sat Jan 16, 2021 8:34 am
jmurtagh's solution is elegant in that he doesn't have to calculate anything, or remember a particular time to plug/unplug.
He plugs in when he arrives home, and is DONE.

He did not say how he turns off power at the EVSE at 7am. I think the JuiceBox has that feature, but others with dumb EVSEs could wire in a timer that costs ~ $50
I installed a pool pump timer that just turns on/off the outlet the EVSE is plugged into.
I have it set to turn off at 7:00am and then back on at 5:00pm.

This was the only way I could get my wife to charge the car in keeping it at 70%, all she has to do is plug it in.

https://www.amazon.com/Intermatic-T101- ... r=8-7&th=1
Last edited by jmurtagh13 on Mon Jan 18, 2021 12:56 pm, edited 1 time in total.
2018 Leaf March 10, 2018
34 months, 24,732 miles
SOH 88.84

DaveinOlyWA
Posts: 15423
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Nov 2019
Leaf Number: 319862
Location: Olympia, WA
Contact: Website

Re: The 40KWH Battery Topic

Sat Jan 16, 2021 9:23 am

SageBrush wrote:
Sat Jan 16, 2021 8:34 am
jmurtagh's solution is elegant in that he doesn't have to calculate anything, or remember a particular time to plug/unplug.
He plugs in when he arrives home, and is DONE.

He did not say how he turns off power at the EVSE at 7am. I think the JuiceBox has that feature, but others with dumb EVSEs could wire in a timer that costs ~ $50
His process isn't that far off from mine. I had my 40 kwh set to finish a charge at 10 AM same setup. but always left for work at 7 AM so no EVSE shut off needed, I simply unplugged and left. Was at 65% +/- 2% or so every day. I only did this during Winter. During Summer, it was too easy to DC instead when it was free.
2011 SL; 44,598 mi, 87% SOH. 2013 S; 44,840 mi, 91% SOH. 2016 S30; 29,413 mi, 99% SOH. 2018 S; 25,185 mi, SOH 92.23%. 2019 S Plus; 16,686 mi, 91.51% SOH
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

SageBrush
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Joined: Sun Mar 06, 2011 2:28 am
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Location: NM

Re: The 40KWH Battery Topic

Sat Jan 16, 2021 10:25 am

DaveinOlyWA wrote:
Sat Jan 16, 2021 9:23 am
SageBrush wrote:
Sat Jan 16, 2021 8:34 am
jmurtagh's solution is elegant in that he doesn't have to calculate anything, or remember a particular time to plug/unplug.
He plugs in when he arrives home, and is DONE.

He did not say how he turns off power at the EVSE at 7am. I think the JuiceBox has that feature, but others with dumb EVSEs could wire in a timer that costs ~ $50
His process isn't that far off from mine. I had my 40 kwh set to finish a charge at 10 AM same setup. but always left for work at 7 AM so no EVSE shut off needed, I simply unplugged and left. Was at 65% +/- 2% or so every day. I only did this during Winter. During Summer, it was too easy to DC instead when it was free.
In your case, *you* are the timer. Your solution is the same one I thought of when people would come to the forum looking for a solution. It's obvious weakness is that it only works well when the time of departure is about the same each day the car is plugged in.
2013 LEAF 'S' Model with QC & rear-view camera
Bought Jan 2017 from N. California
Two years in Colorado, now in NM
03/18: 58 Ahr, 28k miles
11/18: 56.16 Ahr, 30k miles
09/20: 54.3 Ahr; 38k miles
-----
2018 Tesla Model 3 LR, Delivered 6/2018

DaveinOlyWA
Posts: 15423
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Nov 2019
Leaf Number: 319862
Location: Olympia, WA
Contact: Website

Re: The 40KWH Battery Topic

Sat Jan 16, 2021 10:33 am

SageBrush wrote:
Sat Jan 16, 2021 10:25 am
DaveinOlyWA wrote:
Sat Jan 16, 2021 9:23 am
SageBrush wrote:
Sat Jan 16, 2021 8:34 am
jmurtagh's solution is elegant in that he doesn't have to calculate anything, or remember a particular time to plug/unplug.
He plugs in when he arrives home, and is DONE.

He did not say how he turns off power at the EVSE at 7am. I think the JuiceBox has that feature, but others with dumb EVSEs could wire in a timer that costs ~ $50
His process isn't that far off from mine. I had my 40 kwh set to finish a charge at 10 AM same setup. but always left for work at 7 AM so no EVSE shut off needed, I simply unplugged and left. Was at 65% +/- 2% or so every day. I only did this during Winter. During Summer, it was too easy to DC instead when it was free.
In your case, *you* are the timer. Your solution is the same one I thought of when people would come to the forum looking for a solution. It's obvious weakness is that it only works well when the time of departure is about the same each day the car is plugged in.
Yep, work commute so departure time varied in a 5 minute window. I did the same on days off with roadtrips planned. I am not a jump out of bed and take off person. I do coffee routine that lasts AT LEAST an hour before I do anything else. On days I wanted a full charge, I simply plugged in at bedtime. My normal SOC meant charge completion and departure was no more than a few hours. On other times when full charge wasn't desired, I would set it to start at like 4 AM or whatever based on my expected departure time and a 10% per hour charge rate.

In either case, it is hardly inconvenient.
2011 SL; 44,598 mi, 87% SOH. 2013 S; 44,840 mi, 91% SOH. 2016 S30; 29,413 mi, 99% SOH. 2018 S; 25,185 mi, SOH 92.23%. 2019 S Plus; 16,686 mi, 91.51% SOH
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

SageBrush
Forum Supporter
Posts: 5787
Joined: Sun Mar 06, 2011 2:28 am
Delivery Date: 13 Feb 2017
Location: NM

Re: The 40KWH Battery Topic

Sat Jan 16, 2021 11:00 am

DaveinOlyWA wrote:
Sat Jan 16, 2021 10:33 am
In either case, it is hardly inconvenient.
To you. Or to me. Both of us look at the SoC gauge every time we park at home.

However, the country is stuffed with people who only add fuel to their cars when the car beeps and flashes an "ADD GAS" alert. These people have no clue about the status of their fuel tank (or battery SoC, as the case may be) at any other time and they want to keep it that way. Moreover, realize that a sizable fraction of EV drivers are like this, AND are driving an EV in no small part either to save money or because of a pushy spouse. Accommodating EV idiosyncrasies is not part of their daily agenda.

As jmurtagh so cheerfully noted, he was lucky to convince his wife to plug in daily. The rest was on him and the car. In case you are wondering, no particular perceptiveness on my part. But my wife does have a similar outlook and fuse.
2013 LEAF 'S' Model with QC & rear-view camera
Bought Jan 2017 from N. California
Two years in Colorado, now in NM
03/18: 58 Ahr, 28k miles
11/18: 56.16 Ahr, 30k miles
09/20: 54.3 Ahr; 38k miles
-----
2018 Tesla Model 3 LR, Delivered 6/2018

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