DaveinOlyWA
Posts: 12992
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Feb 2018
Leaf Number: 314199
Location: Olympia, WA
Contact: Website

Re: Battery % w/o Nissan Connect

Wed Nov 22, 2017 11:22 am

tanyaviola wrote:I just got a new Leaf and have now charged it twice when in town (we do not have a home charger yet). Is there any way to see what the % of battery you have without being in the car? I know you can do all that if you have NissanConnect, which did not come with this car. I watch the Chargepoint app and I can see approx how many miles it's adding, but it would be nice to see when it hits 80% or so and I can "stop" the charging from the app. Otherwise it's just a guess.

Not a huge deal, but I'm just wondering if there's an app that can connect to the car without Nissan's Connection?

PS- we were told it's not a good idea to charge the battery beyond 80%. Is that a good tip? Obviously, if we need to go on a long trip, we'll want to charge to 100%, but that's rare.

Thanks,
T.


So you got 30 kwh LEAF? Congrats! As far as best charging practices. In your area, its Winter and range is reduced due to several factors NOT including heat and defrost. So even if bundling up, your LEAF won't go as far. Some tips

http://daveinolywa.blogspot.com/2016/12 ... t-100.html

So the concern over charging to full or something less is heat related. So my advice; charge to 100% overnight in Winter for all days you plan to drive the next day. The flakiness of Winter Weather means your range could be anywhere from 60 to 100 miles no matter how efficiently you drive. So better to be prepared. There is very little downside to a fuller charge when the temps are low.

In Summer; its a different story. A GREATLY DEBATED subject is at what temperature you need to be concerned with.

**all that follows is my opinion based on nothing but 7 years of casual observation involving my 3 LEAFs and hundreds of other user reported experiences from all over the United States**

Your main concern should be "time" that your LEAF is at high state of charge (SOC) when its warm out. By warm, I mean your concerns should start as low as 80º. The best rule to follow is to maintain the lowest possible SOC that will cover your needs with a buffer. So you need 50 miles? Add 20% and charge to that level. What that level is is something you need to determine for yourself. Everyone's driving performance, conditions and terrain is different.

This also does not mean that you shouldn't charge to 100% in Summer. That is perfectly fine. What isn't fine is letting the car sit for 2 hours before you run that charge down. Now, a lot of people think that level 2 charging is ok as long as you leave right away when the charge is complete. Now, if this is your only choice, then do it. Remember; your transportation needs are #1 over all else.

But if you have to use normal charging during the day, park in the shade if you can. Start the charge a few hours before you leave for the day.

But if you can (or are willing) the best option is to stop and grab 15 mins or 20 or whatever at a fast charger instead. This reduces time at high SOC simply because you have less time ramping up your SOC and as soon as you get there, you are running it back down when you drive off.

**edit**

Sorry got so sidetracked that I forgot to answer your question. On the Driver display, you can toggle the info and see estimated charge times based on various speeds

120 volts level 1
3.6 KW Level 2
6 KW level 2

Use the time shown to set your charge time.

For example; you have 6 KW charger and time to 100% says 2 hours 30 mins. Keep in mind, it will not take that long to charge to full. Your Battery management system (BMS) charges to a certain voltage then goes into balancing mode where cells are equalized. So take the time displayed and subtract a percentage. I would start with 30 % (sorry, I don't do this so have no experience to pass on)

Then the next morning, determine whether the charge level is too hot, too cold or "just right" and adjust the percentage taken from the charge time accordingly.

I will actually be testing this to see if results are consistent. now that its cold enough to charge at home. (due to heat, I did not use level 2 charging at my house for more than one hour all Summer long. This was my effort to keep my SOC as low as possible when it was "home for the night" )
2011 SL; 44,598 miles. 2013 S; 44,840 miles.2016 S30 deceased. 29,413 miles. 2018 S40; 5775 miles, 488 GIDs, 38 kwh 113.37 Ahr available, SOH 98.21, Hx 115.75
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

specialgreen
Posts: 94
Joined: Sun Mar 26, 2017 1:21 pm
Delivery Date: 26 Mar 2017
Location: Minnesota

Re: Battery % w/o Nissan Connect

Fri Nov 24, 2017 8:14 pm

DaveinOlyWA wrote:Your main concern should be "time" that your LEAF is at high state of charge (SOC) when its warm out. By warm, I mean your concerns should start as low as 80º.


Western MA, like around Holyoke, has nightly lows of 60F in June/July/August, so if you are leaving for work in the morning, I don’t think you need to worry about being 100% charged for several hours in the morning.

That said, I also have an S, and if you set the “charge ending time” to be about 3 hours later than you actually plan to drive off, then the car should only be around 80% charged when you depart (# of hours depends on your own charger’s KW).

cwerdna
Posts: 7924
Joined: Fri Jun 03, 2011 4:31 pm
Delivery Date: 28 Jul 2013
Location: SF Bay Area, CA

Re: Battery % w/o Nissan Connect

Fri Nov 24, 2017 8:22 pm

VitaminJ wrote:statistics have shown that charging to 100% has no perceptible impact on battery health compared to charging to 80%.

Source?

'13 Leaf SV w/premium package (owned)
'13 Leaf SV w/QC + LED & premium packages (lease over, car returned)
'06 Prius

Please don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

LeftieBiker
Posts: 8907
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 31 May 2013
Location: Upstate New York, US

Re: Battery % w/o Nissan Connect

Fri Nov 24, 2017 9:29 pm

Western MA, like around Holyoke, has nightly lows of 60F in June/July/August, so if you are leaving for work in the morning, I don’t think you need to worry about being 100% charged for several hours in the morning.


That's probably our average low too, but that doesn't mean we don't get pack-damaging nights in the upper sixties to mid seventies often enough to be a problem. I've found that above 64F or so the pack doesn't cool very quickly.
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

DaveinOlyWA
Posts: 12992
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Feb 2018
Leaf Number: 314199
Location: Olympia, WA
Contact: Website

Re: Battery % w/o Nissan Connect

Sat Nov 25, 2017 11:32 am

specialgreen wrote:
DaveinOlyWA wrote:Your main concern should be "time" that your LEAF is at high state of charge (SOC) when its warm out. By warm, I mean your concerns should start as low as 80º.


Western MA, like around Holyoke, has nightly lows of 60F in June/July/August, so if you are leaving for work in the morning, I don’t think you need to worry about being 100% charged for several hours in the morning.

That said, I also have an S, and if you set the “charge ending time” to be about 3 hours later than you actually plan to drive off, then the car should only be around 80% charged when you depart (# of hours depends on your own charger’s KW).


I have been experimenting with using the estimated time to charge and setting the timer so that it will be around 80% charge at a time where you can manually stop it. So far, the results have been quite predictable and with 6 kw charging, most of the time the charge doesn't start till very late.

Yeah, I know is a bit of o hokey work around but actually not all that bad. Simply set the end time to be a few hours than you get up. Still working with it but would like to say " if time to charge is XX, simply subtract Y from XX and use that as your end time on charger timer and unplug the car at ZZ time.
2011 SL; 44,598 miles. 2013 S; 44,840 miles.2016 S30 deceased. 29,413 miles. 2018 S40; 5775 miles, 488 GIDs, 38 kwh 113.37 Ahr available, SOH 98.21, Hx 115.75
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

LeftieBiker
Posts: 8907
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 31 May 2013
Location: Upstate New York, US

Re: Battery % w/o Nissan Connect

Sat Nov 25, 2017 12:06 pm

You'd also need to install a telematics unit (modem). It would be a a huge amount of work.
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

DaveinOlyWA
Posts: 12992
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Feb 2018
Leaf Number: 314199
Location: Olympia, WA
Contact: Website

Re: Battery % w/o Nissan Connect

Sat Nov 25, 2017 10:33 pm

specialgreen wrote:
DaveinOlyWA wrote:Your main concern should be "time" that your LEAF is at high state of charge (SOC) when its warm out. By warm, I mean your concerns should start as low as 80º.


Western MA, like around Holyoke, has nightly lows of 60F in June/July/August, so if you are leaving for work in the morning, I don’t think you need to worry about being 100% charged for several hours in the morning.

That said, I also have an S, and if you set the “charge ending time” to be about 3 hours later than you actually plan to drive off, then the car should only be around 80% charged when you depart (# of hours depends on your own charger’s KW).


this is what i am seeing. Noticed if I set my end time to two hours before leaving, I leave with a full charge. :roll: Great job of estimating Nissan.
2011 SL; 44,598 miles. 2013 S; 44,840 miles.2016 S30 deceased. 29,413 miles. 2018 S40; 5775 miles, 488 GIDs, 38 kwh 113.37 Ahr available, SOH 98.21, Hx 115.75
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

Return to “Range / Efficiency / Carwings”