Scaramanga
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Joined: Fri Apr 28, 2017 9:31 pm
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Leaf Number: 308884
Location: Tacoma, WA

Re: Post your questions about the '18 LEAF 2 reveal here

Thu Sep 07, 2017 9:28 am

Leafabout wrote:Since the generation 2 or 2018 battery pack fits in the same space, can I get this newer 400 km battery pack for my generation 1 Leaf?


Sorry, no. The connections are different, the firmware is different, the charger is different. Batteries stay with the generation of the car, Gen I, Gen II. Lizard batteries were different, but that's different.
2016 SL Premium - Gunmetal Grey, built 2/2016
2014 S w/ QC - Cayenne Red, built 1/2014
EVSE: ChargePoint 25 32A Plug-In w/ 18' Cord
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Nubo
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Location: Vallejo, CA

Re: Post your questions about the '18 LEAF 2 reveal here

Thu Sep 07, 2017 10:24 am

Scaramanga wrote:
Leafabout wrote:Since the generation 2 or 2018 battery pack fits in the same space, can I get this newer 400 km battery pack for my generation 1 Leaf?


Sorry, no. The connections are different, the firmware is different, the charger is different. Batteries stay with the generation of the car, Gen I, Gen II. Lizard batteries were different, but that's different.



In the end it's just a source of DC power. Connectors and even firmware can be modified or bypassed by 3rd-parties. There are people running Tesla drive-trains off of Nissan cells in Volkswagen chassis.

http://media3.ev-tv.me/news052617-iPhone.mp4

As the number of older EVs accumulates, at some point I'd expect a viable after-market solution for refreshing these cars.
I noticed you're still working with polymers.

Scaramanga
Posts: 111
Joined: Fri Apr 28, 2017 9:31 pm
Delivery Date: 23 Dec 2016
Leaf Number: 308884
Location: Tacoma, WA

Re: Post your questions about the '18 LEAF 2 reveal here

Fri Sep 08, 2017 3:08 am

It just won't be economical to do so, and speaking as a 30 year mechanic, the average idiot would set themselves on fire, or worse, someone else. You 'could' drop an LT series V8 in a Chrysler 300, but people don't because it'd cost s fortune and it's cheaper to just get a good car.
2016 SL Premium - Gunmetal Grey, built 2/2016
2014 S w/ QC - Cayenne Red, built 1/2014
EVSE: ChargePoint 25 32A Plug-In w/ 18' Cord
ELM 327 / LeafSpy Pro
'06 Sentra Compact Spare / Jack
Renault Tow Hook

2016 Murano SL AWD
VW / Audi / Volvo ex-aficionado

LeftieBiker
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Joined: Wed May 22, 2013 3:17 am
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Location: Upstate New York, US

Re: Post your questions about the '18 LEAF 2 reveal here

Mon Sep 11, 2017 9:04 pm

This question is going to be very important to those of us who are howling about the inexcusable lack of a reduced charge limit setting:

* Can the new version of the Nissan Connect app stop charging remotely, as well as start it?
2013 "Brilliant Silver" SV with Premium Package and no QC, and 2009 Vectrix VX-1 with 18 Leaf cells.

The most offensive, tasteless phrase in use here is "Pulled the trigger." I no longer respond to posts that use it.

montreid
Posts: 4
Joined: Mon Sep 11, 2017 9:07 pm
Delivery Date: 12 Sep 2017

Re: Post your questions about the '18 LEAF 2 reveal here

Mon Sep 11, 2017 10:02 pm

mxp wrote:Does V2G or V2H require a special hardware module in the Leaf? The features description did not state it being a product option.
Will V2G or V2H be available for cars sold in the California market?

There is very little being written about this topic and the only thing I can find was that it will be first trialed in Detroit.


I too am interested in this instead of adding the Tesla Powerwall 2 and leverage my EV to do this.

Ran into Nuvve and they are doing V2G already in Denmark and Torrance and now in UCSD pilot pending. Wondering if anyone been able to get a V2H solution going.

cwerdna
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Re: Post your questions about the '18 LEAF 2 reveal here

Mon Sep 11, 2017 10:40 pm

montreid wrote: Wondering if anyone been able to get a V2H solution going.

http://www.nichicon.co.jp/english/produ ... ew124.html was shown LONG ago. Apparently, at least some people use it in Japan. There was a guy in Japan on a Leaf FB group that lost 4 capacity bars within the capacity warranty. I was surprised and he mentioned he used a V2H solution, possibly that one.

I also saw and took pictures of this box intended I think for emergencies (draws power from Leaf via CHAdeMO port) and outputs 100 volts AC (household voltage there) when I was in the Nissan HQ lobby in Yokohama in Nov 2015. I believe at the top is the price of 298,000 yen. Right now, that'd be about $2723 USD.
12188916_10154289444992542_7148961372696655233_n.jpg
12208264_10154289444967542_1369923209611452534_n.jpg

Honda has a similar box for their Clarity FCEV. I saw the vehicle and box pictured at https://longtailpipe.com/2015/10/29/hon ... demo-port/ at Tokyo Motor Show around the same time that year.

At around 2:20 of https://www.youtube.com/watch?v=TQBupeHVJwA, the '18 Leaf Chief Vehicle Engineer said he believes as a result of the previous (currently available Leaf), about 7000 customers already installed the V2H system, including him.
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'13 blue Leaf SV w/premium package (owned)
'13 blue Leaf SV w/QC + LED & premium packages (lease over, car returned)
'06 Prius

montreid
Posts: 4
Joined: Mon Sep 11, 2017 9:07 pm
Delivery Date: 12 Sep 2017

Re: Post your questions about the '18 LEAF 2 reveal here

Mon Sep 11, 2017 11:52 pm

Yeah, seen those and Honda's option for Japan, and a concept one Nissan did powering a concert. Just haven't seen a Nichicon actually on the state side.

Don't know why mild daily cycling of 10kw in V2H application would be anymore draining on battery than driving an additional 40miles.

eg: 100mi battery - drive 40miles and return home with 60% battery left -- plug in and V2H support another 10kw (40mi) leaving 20miles on the battery left. Charge overnight and repeat next day.

This is essentially what we do now with our Spark and Fiat. I presume that's what many Leaf owners do and don't suffer from battery degradation.

cwerdna
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Location: SF Bay Area, CA

Re: Post your questions about the '18 LEAF 2 reveal here

Mon Sep 11, 2017 11:58 pm

montreid wrote: Don't know why mild daily cycling of 10kw in V2H application would be anymore draining on battery than driving an additional 40miles.

eg: 100mi battery - drive 40miles and return home with 60% battery left -- plug in and V2H support another 10kw (40mi) leaving 20miles on the battery left. Charge overnight and repeat next day.

This is essentially what we do now with our Spark and Fiat. I presume that's what many Leaf owners do and don't suffer from battery degradation.

I think you meant kWh for the units, not "kw".

Well, you're putting on extra unnecessary cycles and heating the battery (or keeping it warm) by the charging and discharging vs. letting it cool.

Leaf's battery has no thermal management.

If you search thru TalyorSFGuy's posts, he had a 130 mile/day commute, charging fully on both ends. viewtopic.php?f=31&t=20275&p=431911 has him down 5 bars by 141K miles in a mild climate ideal for the Leaf. I suspect many others in the PNW who have the same age of Leaf that didn't put on as many miles (and thus as many cycles) had less capacity loss.

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

LeftieBiker
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Location: Upstate New York, US

Re: Post your questions about the '18 LEAF 2 reveal here

Tue Sep 12, 2017 2:24 am

Don't know why mild daily cycling of 10kw in V2H application would be anymore draining on battery than driving an additional 40miles.


I have a guess: no air cooling. The Leaf's pack does get cooled when the car is moving and the air temp is below the pack temp. That wouldn't happen with a stationary car.
2013 "Brilliant Silver" SV with Premium Package and no QC, and 2009 Vectrix VX-1 with 18 Leaf cells.

The most offensive, tasteless phrase in use here is "Pulled the trigger." I no longer respond to posts that use it.

montreid
Posts: 4
Joined: Mon Sep 11, 2017 9:07 pm
Delivery Date: 12 Sep 2017

Re: Post your questions about the '18 LEAF 2 reveal here

Tue Sep 12, 2017 6:32 am

Ah, that would make sense; forgot about the lack of thermal management. The question is how much heat does a pull at 3.5kwH generate? That's the amount that is usually being drawn. It can't be that much as both our Spark and Fiat don't turn appear to turn on any circulation system when charging at Level 2.

My hope is that the batteries are better now; and especially with Leaf 2.0 coming online and future LG batteries in the 60 KwH battery.

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