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

Aftermarket charge to 80%, opinions wanted!

Wed Nov 27, 2019 6:06 am

Hi forum,
I'm working on adding 80% charging (or any wanted % really) to any 2013-2019 Leaf, with the magic that is the Muxsan CAN bridge. The rough code is ready, but I need to decide on what button on the Nissan Leaf (that is available on the EV-CANbus!) should activate this mode.

Here are a few suggestions
-SteeringWheelButtons, ECO?
-Last used shifter position before charging
-ClimateControlButtonPress
-Fanspeed
-HVAC setting (recirculating/fresh air/defrost) (face/feet/defrost)
-Rear defrost ON

Which one would you want to use as a secondary trigger for charging to 80%? Remember that quick double tapping is also possible! Very thankful for suggestions!

EDIT: Oh, and would any feedback that the 80% max is on be wanted? Like it dropping all the capacity bars or something?

LeftieBiker
Moderator
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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!

Wed Nov 27, 2019 7:17 am

What about using the cruise control button, with the command being recognized as only toggling 80% mode if the button is pressed with the car not moving?
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.

webeleafowners
Posts: 1009
Joined: Mon Oct 05, 2015 5:37 pm
Delivery Date: 06 Oct 2015
Location: Okanagan Valley British Columbia

Re: Aftermarket charge to 80%, opinions wanted!

Wed Nov 27, 2019 7:37 am

How about to the left of the steering wheel where the original 80 percent button was. Down by the heated steering wheel switch is.

I would be interested...if it didn’t compromise warranty.
2015 Smart Electric Drive convertible.
2016 Nissan Leaf SV 30KWh
EV only Family...well except for the big diesel motorhome. :shock:

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!

Wed Nov 27, 2019 9:39 am

A display to indicate which mode has been chosen would be very helpful if the mode is toggled by a button press. Maybe have the top SOC indicator bar flash a few times when 100% is selected, and the 9th bar flash a few times when 80% is selected? If a display is difficult to implement, the position of a physical switch might be a better selector than a button.

Any idea how well this will integrate with the charging and climate control timers?
2016 SL

lorenfb
Posts: 2296
Joined: Tue Dec 17, 2013 10:53 pm
Delivery Date: 22 Nov 2013
Leaf Number: 416635
Location: SoCal

Re: Aftermarket charge to 80%, opinions wanted!

Wed Nov 27, 2019 10:02 am

Charging to 80% is simple for me:

Time (hrs) ~= (80% - SOC) X 40 kWh / 5 kW
Time (hrs) ~= (80% - SOC) X 8 hrs

Example for SOC = 20%, Time ~ 5 hrs

Notes:
1. 40 kWh Leaf
2. My L2 ~ = 5 kW

For me, it's not critical to charge to exactly 80%. Obviously over time as degradation occurs, the 80% will increase.
#1 Leaf SL MY 9/13: 74K miles, 48 Ahrs, 5.2 miles/kWh (average), Hx=70, SOH=78, L2 - 100% > 1000, temp < 95F, (DOD) > 20 Ahrs
#2 Leaf SL MY 12/18: 4.5K miles, 115 Ahrs, 5.5 miles/kWh (average), Hx=98, SOH=99, DOD > 20%, temp < 105F

alozzy
Posts: 1423
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Location: Vancouver, BC
Contact: Website

Re: Aftermarket charge to 80%, opinions wanted!

Wed Nov 27, 2019 2:15 pm

You beat me too it :-) I had the same thought, using the muxsan CANBUS MITM bridge this way and selling it as an aftermarket product.

Fortunately, I have a 2013 LEAF and so I don't need 80% charging.

I think this will sell very well, as the muxsan CANBUS bridge looks like it's easy to install and your plan for activating the feature using an existing button is smart.

Good luck!
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

cwerdna
Posts: 9994
Joined: Fri Jun 03, 2011 4:31 pm
Delivery Date: 28 Jul 2013
Location: SF Bay Area, CA

Re: Aftermarket charge to 80%, opinions wanted!

Wed Nov 27, 2019 3:36 pm

webeleafowners wrote:
Wed Nov 27, 2019 7:37 am
How about to the left of the steering wheel where the original 80 percent button was. Down by the heated steering wheel switch is.
What original button are you talking about?

'11 and '12 folks had to enable 80% via timers. '13 folks could but also could via an added menu option on the nav system on '13 and '14 SV/SL. Not sure about '13 S method... it's probably thru the tiny dash display on the 2 buttons on the left.)

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

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

LeftieBiker
Moderator
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Re: Aftermarket charge to 80%, opinions wanted!

Wed Nov 27, 2019 4:06 pm

I was wondering about that too. He may mean the timer override button. That wouldn't, I think, work out well.
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.

jjeff
Posts: 2022
Joined: Wed Jan 13, 2016 9:10 am
Delivery Date: 13 Jul 2014
Leaf Number: 422121
Location: MSP MN

Re: Aftermarket charge to 80%, opinions wanted!

Wed Nov 27, 2019 6:38 pm

cwerdna wrote:
Wed Nov 27, 2019 3:36 pm
webeleafowners wrote:
Wed Nov 27, 2019 7:37 am
How about to the left of the steering wheel where the original 80 percent button was. Down by the heated steering wheel switch is.
What original button are you talking about?

'11 and '12 folks had to enable 80% via timers. '13 folks could but also could via an added menu option on the nav system on '13 and '14 SV/SL. Not sure about '13 S method... it's probably thru the tiny dash display on the 2 buttons on the left.)
Correct, to set the 80% mode you need to use those 2 buttons, they stay at whatever you've set them to.
2012 SL purchased used 2/'16
2013 S w/QC purchased new
Juicebox Premium 60a L1/L2 EVSE, Ebusbar 16a L1/L2 EVSE
'12 EVSEupgrade'd 20a L1/L2 EVSE, '13 EVSEupgrade'd adjustable 6-20a L2, 6-13a L1 EVSE
Zencar 13, 20, 30a L1/L2 portable EVSE
GE Durastation 30a

webeleafowners
Posts: 1009
Joined: Mon Oct 05, 2015 5:37 pm
Delivery Date: 06 Oct 2015
Location: Okanagan Valley British Columbia

Re: Aftermarket charge to 80%, opinions wanted!

Thu Nov 28, 2019 7:29 am

cwerdna wrote:
Wed Nov 27, 2019 3:36 pm
webeleafowners wrote:
Wed Nov 27, 2019 7:37 am
How about to the left of the steering wheel where the original 80 percent button was. Down by the heated steering wheel switch is.
What original button are you talking about?

'11 and '12 folks had to enable 80% via timers. '13 folks could but also could via an added menu option on the nav system on '13 and '14 SV/SL. Not sure about '13 S method... it's probably thru the tiny dash display on the 2 buttons on the left.)
I did not know that. I though there was an 80 percent button. Maybe I made that up in my head...out of strong wishful thinking. :).

It would be handy. We tend to use the timers a lot right now.
2015 Smart Electric Drive convertible.
2016 Nissan Leaf SV 30KWh
EV only Family...well except for the big diesel motorhome. :shock:

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