DaveinOlyWA
Posts: 14389
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Nov 2019
Leaf Number: 319862
Location: Olympia, WA
Contact: Website

Re: Aftermarket charge to 80%, opinions wanted!

Thu Nov 28, 2019 8:18 am

TBH; Having 80% on the 24 kwh was understandable but was more needed on the 30 kwh. But 40 kwh and up? Need custom charge settings. I wouldn't do 80% setting. I can do better manually. Need AT LEAST 2 other settings. How about 65%? That would still be well more than double what I would normally. :roll: :lol:
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; 2640.9 mi, 99.37% SOH
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

Titanium48
Posts: 148
Joined: Thu Jan 31, 2019 7:33 am
Delivery Date: 25 Jan 2019
Location: Edmonton, AB

Re: Aftermarket charge to 80%, opinions wanted!

Thu Nov 28, 2019 12:04 pm

If a single fuel bar can be illuminated or flashed as an indicator, it might make sense to have 100%, 92%, 83%, 75% and 67% charge settings that could be toggled through.
2016 SL

LeftieBiker
Moderator
Posts: 13749
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 30 Apr 2018
Location: Upstate New York, US

Re: Aftermarket charge to 80%, opinions wanted!

Thu Nov 28, 2019 1:20 pm

Titanium48 wrote:
Thu Nov 28, 2019 12:04 pm
If a single fuel bar can be illuminated or flashed as an indicator, it might make sense to have 100%, 92%, 83%, 75% and 67% charge settings that could be toggled through.
That would work, although replacing 67% with ~60% would be desirable.
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
BAFX OBDII Dongle
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

Titanium48
Posts: 148
Joined: Thu Jan 31, 2019 7:33 am
Delivery Date: 25 Jan 2019
Location: Edmonton, AB

Re: Aftermarket charge to 80%, opinions wanted!

Thu Nov 28, 2019 1:50 pm

Or you could just use the next bar down for a 58% setting. I'm not sure why you would want to charge a car that gets used regularly to less than 2/3 though. You are significantly reducing your margin for unexpected trips, and there isn't much additional improvement to battery life to be made, is there?
2016 SL

LeftieBiker
Moderator
Posts: 13749
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 30 Apr 2018
Location: Upstate New York, US

Re: Aftermarket charge to 80%, opinions wanted!

Thu Nov 28, 2019 3:42 pm

Titanium48 wrote:
Thu Nov 28, 2019 1:50 pm
Or you could just use the next bar down for a 58% setting. I'm not sure why you would want to charge a car that gets used regularly to less than 2/3 though. You are significantly reducing your margin for unexpected trips, and there isn't much additional improvement to battery life to be made, is there?
Lithium batteries are happier in the middle SOC range than the upper. I typically charge my 40kwh Leaf to 60-80%, but don't recharge again until it's below 50%. 70 miles of range available is what I had with my previous Leaf at 100% charge.
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
BAFX OBDII Dongle
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

DaveinOlyWA
Posts: 14389
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Nov 2019
Leaf Number: 319862
Location: Olympia, WA
Contact: Website

Re: Aftermarket charge to 80%, opinions wanted!

Fri Nov 29, 2019 8:31 am

Titanium48 wrote:
Thu Nov 28, 2019 1:50 pm
Or you could just use the next bar down for a 58% setting. I'm not sure why you would want to charge a car that gets used regularly to less than 2/3 though. You are significantly reducing your margin for unexpected trips, and there isn't much additional improvement to battery life to be made, is there?
Actually VERY shallow cycling does prove to work better. The vaunted Prius pack was diff chemistry but mechanics are similar. That pack cycled from 40 to 80% as much as several dozen times a day.

Li voltage is different so it prefers 50%. So 40-60% is good. I tend to run between 25 to 70%. Is it limiting? I don't really see that. The range covers my entire commute for my 4 day work week. Roughly 110 miles. In fact, I just did this this week, starting at 71% and ending at 22% during colder than normal weather so I even used heat. It worked. For the most part, I am only QCing twice a week.

Now it will change when my free charging runs out but not dramatically so. I plan to likely charge to around 65% for the start of the work week then plug in for 85 minutes every morning. I should end the week around 40%.

This allows plenty of cushion for random side trips if needed. I look at the 25% lower end of my SOC range as all buffer. That's another 65-70 miles added to whatever my SOC happens to be. For longer trips than that, they would be known in advance.

Having looked at unexpected trips I have done and there are several but in town stuff. Picking up kid from school, etc. Small stuff. Seatac is the only destination that comes to mind having had to pick someone up last minute twice this past Summer but they now have DCFC in the cellphone lot so I only need the 52 miles of range it takes to get there. I am more than covered.
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; 2640.9 mi, 99.37% SOH
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

Titanium48
Posts: 148
Joined: Thu Jan 31, 2019 7:33 am
Delivery Date: 25 Jan 2019
Location: Edmonton, AB

Re: Aftermarket charge to 80%, opinions wanted!

Fri Nov 29, 2019 11:28 am

I can see how the lower settings could be more useful on the 40 and 62 kWh cars. I couldn't see using anything below about 75% on a 24 or 30 kWh car though, unless I wasn't going to be driving it for a week or more.
2016 SL

DaveinOlyWA
Posts: 14389
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Nov 2019
Leaf Number: 319862
Location: Olympia, WA
Contact: Website

Re: Aftermarket charge to 80%, opinions wanted!

Fri Nov 29, 2019 2:48 pm

Titanium48 wrote:
Fri Nov 29, 2019 11:28 am
I can see how the lower settings could be more useful on the 40 and 62 kWh cars. I couldn't see using anything below about 75% on a 24 or 30 kWh car though, unless I wasn't going to be driving it for a week or more.
Well, I guess you just justified something. 8-)
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; 2640.9 mi, 99.37% SOH
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

Titanium48
Posts: 148
Joined: Thu Jan 31, 2019 7:33 am
Delivery Date: 25 Jan 2019
Location: Edmonton, AB

Re: Aftermarket charge to 80%, opinions wanted!

Sun Dec 01, 2019 9:34 am

I suppose if implementing multiple charge level settings and clear indications is not significantly more difficult than just an 80% setting it would make sense to have settings down to 50%.
2016 SL

Dala
Posts: 146
Joined: Sun Oct 28, 2018 11:24 am
Delivery Date: 01 Jan 2015
Leaf Number: 316851

Re: Aftermarket charge to 80%, opinions wanted!

Mon Dec 02, 2019 4:44 am

Wow, thanks for all the feedback! And yeah, this is mainly for the 30/40/62kWh upgrades, that you really want to protect your battery after investing in a costly battery upgrade. This should be especially beneficial for the 40kWh pack that charges to 4.20V per cell, which is quite high SOC (compared to 4.13V on 24kWh packs).

For the initial version, I'll add 4 different charge settings, (75, 84, 92, 100). I personally feel that if you go lower than this you'll risk limiting your use of the car.

I'll try to use the cruise control cancel button, and this menu is accessed by holding it for longer than 1second. Then depending on how long you hold the button, you'll set the max charge %.
I'll use the capacity bars to temporarily show the max charging %, I'll post a video when I have it working.

Thanks for all the feedback and great ideas!

Return to “General / Main Owners Forum”