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MarkH67
510 posts

Ultimate Geek


  #3007396 8-Dec-2022 15:17
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boland:

 

Lots of people have done it via the 12V battery. As long as you stay below ~1800W you are fine. Just need to keep the car On.

 

 

Exactly this!  As long as you are aware of how much power you can get away with drawing and keep your power draw within that, I can't see any real issue.  A fridge and a freezer might peak a bit high on startup, but the average draw per hour would be well within the capabilities of the Leaf system, the 12V battery should be fine and with however many kWh your main battery still has, this should all work for quite a while (several days probably).

 

My setup is different, as you would expect as I'm living full-time off-grid and powering a lot more than my fridge/freezer (which uses very little power as it is a 12/24/240V running off 12V.  My Sous Vide unit is running today for ~6hrs to cook a 1.7kg chicken, but the battery was going up despite that and is now just sitting on 100%.  My stove/oven & hot water are LPG, but each of my 9kg gas cylinders lasts more than 10 weeks so that costs me less than $4 per week.  I'm also only paying $50 per week to park my home where I do, so my living costs are pretty reasonable.

 

Obviously you could set up a system somewhere in between, with a LiFePO4 battery providing enough power to run a few things in the house and solar panels recharging it every day.  Basically you can spend from a little up to several tens of thousands, depending on what you want to do.  You could set up a house with enough solar, batteries & inverter power to run it completely off-grid and if you could then take power from the car when the solar is not getting enough sun, that would be a super handy backup without needing a petrol or diesel generator.


 
 
 

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boland
510 posts

Ultimate Geek


  #3009484 13-Dec-2022 14:13
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How long does it take before the SOH stabilizes for an import? We bought a 2016 Leaf 30kwh with 74% SOH (pre-auction in Japan). It seemed a little inflated, as it has had many QC's, and I guess it hasn't driven for about 5 months, but it was priced accordingly. 

 

It has gone down every time I checked and it's 71% now, after 3 weeks.

 

We only charge it slowly, up to 80%, so I'm hoping it will stabilize at some point and not degrade slower than it has been.


gravisus
11 posts

Geek


  #3009492 13-Dec-2022 14:32
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it took 4 months for me. although i didn't ride it too much at that time (150km per week)

 

2019-10 87% (purchased)
2019-11 82%
2019-12 84%
2020-01 83%
2020-02 83%




GV27
5545 posts

Uber Geek


  #3011551 18-Dec-2022 13:24
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So I have my Leaf! First thoughts:

 

Holy balls the seats are uncomfortable - the drivers more than the passenger. To be fair I probably need to shift a few kilos anyway, but those are some narrow ass bolsters. 

 

Out the window charging is inelegant but it works. My EVSE is trying to tell me the temperature of something it's reading is 55 degrees plus. Leaf Spy Pro tells me the battery temperature is around 22 degrees, which feels about right considering I only drove it up the driveway to charge it. 

 

It's effortless up hills but I miss the snap-crackle of a downshift before going up a hill. 

 

The GOM is near useless in the wet... but I've only driven it in the wet and I've yet to do the tyre pressures, which will be tonight's job. 

 

The 2020/2021 refreshed screen is really good but there is already a bit of wear on the screen itself from just being used as a touch screen. Hopefully by the time it's really unusable I'll have some options for what I can swap it with. 

 

This week I'll be getting quotes for my wall unit and maybe if I'm lucky, getting it installed. It looks like mine has done 30 QCs and the rest are all L1/L2 - so I'm guessing overnight home charging given it's roughly a year old and has had 360 odd charges. The wall unit works but it is not a sustainable solution. 


boland
510 posts

Ultimate Geek


  #3011572 18-Dec-2022 16:00
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@GV27 check your tires indeed. Ours were between 28 and 32PSI. I've set them to 40PSI and efficiency went up from 6.6 to 7.2km/kWh.

 

One other question, perhaps a stupid question, but what is that little antenna thingie at the left front? I've seen that in other cars as well in New Zealand.
We're from Europe and I've never seen that before.


DumKopf
70 posts

Master Geek


  #3011573 18-Dec-2022 16:05
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I believe they are just to help people visualize the front of their car when parking.

boland
510 posts

Ultimate Geek


  #3011574 18-Dec-2022 16:06
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DumKopf: I believe they are just to help people visualize the front of their car when parking.

 

Really? I don't need that :D 




RunningMan
8094 posts

Uber Geek


  #3011633 18-Dec-2022 17:38
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GV27:

 

Out the window charging is inelegant but it works. My EVSE is trying to tell me the temperature of something it's reading is 55 degrees plus. Leaf Spy Pro tells me the battery temperature is around 22 degrees, which feels about right considering I only drove it up the driveway to charge it. 

 

Check that isn't the power plug.


GV27
5545 posts

Uber Geek


  #3011880 19-Dec-2022 08:24
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RunningMan:

 

Check that isn't the power plug.

 

 

There's not a lot of documentation for it, so I'm unsure what it's measuring. 

 

Either way, it has prompted me to get my arse into gear for getting my wall charger fitted.


Scotdownunder
193 posts

Master Geek

Subscriber

  #3011898 19-Dec-2022 09:15
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boland:

 

what is that little antenna thingie at the left front?

 

 

I would guess its for the Japanese automatic road toll system .


Technofreak
6205 posts

Uber Geek

Trusted

  #3011945 19-Dec-2022 12:09
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Scotdownunder:

 

boland:

 

what is that little antenna thingie at the left front?

 

 

I would guess its for the Japanese automatic road toll system .

 

 

No, I don't think so there are other devices that do that.  I'm pretty sure it's this https://www.geekzone.co.nz/forums.asp?forumid=162&topicid=191715&page_no=243#3011573 





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GV27
5545 posts

Uber Geek


  #3013375 23-Dec-2022 07:37
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So my Leaf has been parked for a week while I try and sort out some sort of viable home-charging before I get my wall unit installed in the new year.

 

I've been stymied by a lack of accessible three-pronged sockets. But it also looks like we are going to move at some point in the new few months so I'm not too cut up about it. 


lmnop
22 posts

Geek


  #3013562 23-Dec-2022 16:39
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Technofreak:

 

 

No, I don't think so there are other devices that do that.  I'm pretty sure it's this https://www.geekzone.co.nz/forums.asp?forumid=162&topicid=191715&page_no=243#3011573 

 

 

Yep. For the parking-challenged.

 

 

On my road leaf, there is a small round switch on the dash just to the left and below where the charge port door button is that switches it on and off.

 

 


boland
510 posts

Ultimate Geek


  #3013576 23-Dec-2022 18:36
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I've been reading a bit about charging to 80 vs 100%. I use the charge timer to ensure it's charged to 80% only, which should prolong battery life.

 

I have read in some other topics that it may be useful to charge it to 100% once in a while such that it will re-balance the cells? No idea if it's true.

 

I understand it's mainly an issue if you keep it at 100% for a long time.


DumKopf
70 posts

Master Geek


  #3013582 23-Dec-2022 19:16
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boland:

I've been reading a bit about charging to 80 vs 100%. I use the charge timer to ensure it's charged to 80% only, which should prolong battery life.


I have read in some other topics that it may be useful to charge it to 100% once in a while such that it will re-balance the cells? No idea if it's true.


I understand it's mainly an issue if you keep it at 100% for a long time.



I don’t think there’s much official information, but your assumptions seem right.

Hard to confirm if 80% charging balances cells or not, so a 100% extended time (charge to 100% and leave it charging for another 12-24 hours) is probably a good idea.

Also keeping the battery chemistry at 100% long term doesn’t seem like a good idea, so that assumption seems right too.

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