pipestem
Posts: 37
Joined: Tue Sep 26, 2017 6:03 pm
Delivery Date: 23 Sep 2017
Leaf Number: 327753
Location: North Carolina

Re: The perfect commute

Fri May 11, 2018 8:05 am

I am not charging at night. I charge in the afternoon at work. Minimal RT is 33 miles, and with an errand or bar run I am typically charging 50 to 60%.

Leftie, it would be nice to max it at 80% but I am using a shared L2 charger pool so I take what I can get. We plug each others cars in and out so I don't normally have control over that. It's a good community we have.

But no complaints, the car is great.
2015 Leaf S. Red. 34K+ miles.

SageBrush
Posts: 2790
Joined: Sun Mar 06, 2011 2:28 am
Delivery Date: 13 Feb 2017
Location: Colorado

Re: The perfect commute

Fri May 11, 2018 8:11 am

LeftieBiker wrote:
pipestem wrote:Nope. I drive 16.5 each way. I fill up at work each day, at home or otherwise only on some weekends. The point is the GOM and the %charge suddenly seem a lot more reasonable, as if the car as turned over a new leaf.

Side note. I have come to realize I should keep it charged out of responsibility to others. A few months ago, an old friend called me at work and asked me to visit his disabled aunt who was in a hospital about 30 miles away. Fortunately I had charged. I realized it could have been one of my daughters calling.


You may want to experiment with charge timers

A pretty good estimate is available with minor arithmetic, you just have to know the kW rating of the EVSE and the kWh used per day.
Then time to charge in hours is kWh/kW

E.g,
If 16.5 miles a day takes 4 kWh;
An L2 at 240 v EVSE run at 16 amps charges the battery at 0.240*16= 3.8 kW. Figure 90% makes it to the battery
Then it takes about 75 minutes a day.
2013 LEAF 'S' Model with QC & rear-view camera
Bought off-lease Jan 2017 from N. California
Car is now enjoying an easy life in Colorado
3/2018: 58 Ahr, 28k miles
-----
2018 Tesla Model 3 LR, Delivered 6/2018

pipestem
Posts: 37
Joined: Tue Sep 26, 2017 6:03 pm
Delivery Date: 23 Sep 2017
Leaf Number: 327753
Location: North Carolina

Re: The perfect commute

Fri May 11, 2018 9:53 am

yeah, math is no problem. walking out to the parking lot several times a day to see if anyone has plugged me in is a problem. first world problem no doubt.
2015 Leaf S. Red. 34K+ miles.

DaveinOlyWA
Posts: 13198
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Feb 2018
Leaf Number: 314199
Location: Olympia, WA
Contact: Website

Re: The perfect commute

Fri May 11, 2018 10:15 am

pipestem wrote:I am not charging at night. I charge in the afternoon at work. Minimal RT is 33 miles, and with an errand or bar run I am typically charging 50 to 60%.

Leftie, it would be nice to max it at 80% but I am using a shared L2 charger pool so I take what I can get. We plug each others cars in and out so I don't normally have control over that. It's a good community we have.

But no complaints, the car is great.


Ah that clears it up. Not good to charge during day but if keeping SOC at 60% that is a very good plan!
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;

bukatony
Posts: 1
Joined: Wed May 30, 2018 8:46 am
Delivery Date: 30 May 2018
Leaf Number: 664854

Re: The perfect commute

Wed May 30, 2018 8:53 am

I have problem, when i charging it is not going full, over 70% :((
Enjoy for this y8 - stick war hacked

DaveinOlyWA
Posts: 13198
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Feb 2018
Leaf Number: 314199
Location: Olympia, WA
Contact: Website

Re: The perfect commute

Thu Jun 07, 2018 7:42 am

draftman wrote:Nope. I drive 16.5 each way. I fill up at work each day, at home or otherwise only on some weekends.


I have a 24 mile RT commute and only charge to full if planning a 150+ mile drive and then only sometimes. Today I will do about 130 miles. Right now my LEAF is about 60%? I will stop by the QC for a charge and lunch.

Based on past track records, I would avoid higher SOCs at least until we have some baseline user experiences.
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;

techiefan
Posts: 19
Joined: Sun May 27, 2018 2:22 am
Delivery Date: 27 May 2018
Leaf Number: 304600

Re: The perfect commute

Fri Jun 08, 2018 4:17 am

DaveinOlyWA wrote:
draftman wrote:Nope. I drive 16.5 each way. I fill up at work each day, at home or otherwise only on some weekends.


I have a 24 mile RT commute and only charge to full if planning a 150+ mile drive and then only sometimes. Today I will do about 130 miles. Right now my LEAF is about 60%? I will stop by the QC for a charge and lunch.

Based on past track records, I would avoid higher SOCs at least until we have some baseline user experiences.


2018 LEAF in Question here

I agree that more data is needed but what is the real SOC % to go by, I hear 80% but that's based on previous models with different battery sizes. Why not 90% or 95%, I get 100% is a no-no but as said here but charging to a lower number cuts the distance down and one never knows when they will need to or want to do a spur of the moment trip. Why is 5% not enough breathing room or 10%?

Other pain and my grip right now is having to managing charging as such.

powersurge
Posts: 1053
Joined: Wed Oct 21, 2015 10:24 am
Delivery Date: 06 Dec 2014
Location: Long Island, NY

Re: The perfect commute

Fri Jun 08, 2018 5:09 am

All this "charge managing" is in the hopes that not overcharging the battery will add years of life to the battery....

I don't think we really know, but I think all of us are trying crazy charging schemes towards this goal.... I think it is like vegetarians thinking and planning their meals in order to live a longer life.....

I think the key is to not obsess about how many KW you put into your battery... I just try to keep the battery at 40-70% charge every night overnight and charge in the morning what I will use... I don't care that it charges to 100% because I will surely use it up on my way to work...

DaveinOlyWA
Posts: 13198
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Feb 2018
Leaf Number: 314199
Location: Olympia, WA
Contact: Website

Re: The perfect commute

Fri Jun 08, 2018 9:00 am

techiefan wrote:
DaveinOlyWA wrote:
draftman wrote:Nope. I drive 16.5 each way. I fill up at work each day, at home or otherwise only on some weekends.


I have a 24 mile RT commute and only charge to full if planning a 150+ mile drive and then only sometimes. Today I will do about 130 miles. Right now my LEAF is about 60%? I will stop by the QC for a charge and lunch.

Based on past track records, I would avoid higher SOCs at least until we have some baseline user experiences.


2018 LEAF in Question here

I agree that more data is needed but what is the real SOC % to go by, I hear 80% but that's based on previous models with different battery sizes. Why not 90% or 95%, I get 100% is a no-no but as said here but charging to a lower number cuts the distance down and one never knows when they will need to or want to do a spur of the moment trip. Why is 5% not enough breathing room or 10%?

Other pain and my grip right now is having to managing charging as such.


The SOC parameter is not a line in the sand. First off, lets examine the basics.

**Li prefers life at 50% SOC. Obviously this is not convenient when moving electrons is the ONLY state that benefits us. So the SOC swing should have an arc as centered as feasibly possible.

** One of the degrading factors is the effects of voltage on the anode. High voltage apparently degrades the connection reducing its ability to convert which in turn lowers its capacity. This phenomena is slow which benefits us. So the less time at high SOC, the better. Slow might be good but it all adds up.

** Then we have heat. This accelerates any chemical process. So imagine you get home, batts are warm like 100º and you charge to full stopping at an SOC deemed "ok" by the BMS but your charge finishes early and the pack continues to cool so you get up in the morning and batts are now 75º. Is that "safe" SOC still safe?

Finally; Nissan picked a chemistry that is now known as one of the least robust for high SOC tolerance when a little (woefully little) heat is added.

So the synopsis? Its my take that I will not charge to a level more than I expect to need. The small inconvenience of stopping to charge is something I can easily accept over the HUGE inconvenience of a car 5 years from now that barely meets my needs.

The bottom line is really what is your comfort level and your need? Some need a lot of extra range to reduce range anxiety. For me? I spent $50 on LEAF Spy and removed all that. ;)
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;

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