2k1Toaster
Posts: 498
Joined: Mon Nov 18, 2013 5:45 pm
Delivery Date: 12 Nov 2013
Leaf Number: 420903

Re: Battery Upgrades are very possible

Mon Feb 25, 2019 11:56 am

Oilpan4 wrote:The only payments I'll do are realestate.

Even then if the payment is zero intrest I will still have get to full coverage insurance which will at least double the cost of my liability only insurance.
I have been driving for 20 years and never had an at fault crash so I don't see the need for full coverage.
Plus me and my wife keep a spare car on hand. That's the best "car insurance" I have ever had.
Don't have to be at fault. If the car is stolen you need full coverage. If the car is broken into, you need full coverage. if the interest rate is less than 8%, take the money. At 0%, it is free money.
2013 Nissan Leaf SV with every option
2013 Prius C Package 4
2012 Lexus RX450h
2006 Prius Gen II, pIV
2005 Honda Civic Hybrid
2001 Honda Civic EX
1997 Honda Prelude SH
1981 DeLorean DMC12
and more...

Oilpan4
Gold Member
Posts: 715
Joined: Wed Jan 09, 2019 10:51 pm
Delivery Date: 10 May 2018
Leaf Number: 004270

Re: Battery Upgrades are very possible

Mon Feb 25, 2019 3:10 pm

I don't think any one around here will steal an 8 year old electric car.
Plus I usually park it in my garage.
Making stealing it and breaking in that much more difficult.
Where I work is gated and there are a ton of cameras, don't really have much issue with people stealing anything.

In 20 years I have only had stuff stolen out of my car once and homeowners insurance covered it and at that house I didn't have a garage to put the car in.
2011 white SL leaf with 2014 batt.
Chargers: Panasonic brick moded for 240v, duosida 16a 240v and a 10kw setec portable CHAdeMO
Location: 88103

DaveinOlyWA
Posts: 14028
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Feb 2018
Leaf Number: 314199
Location: Olympia, WA
Contact: Website

Re: Battery Upgrades are very possible

Wed Feb 27, 2019 7:23 am

Oilpan4 wrote:The 2018 nissan leaf right now is going for $22,000 to $25,000.
That's about $15,000 more than I ever want to spend on a vehicle.
I buy vehicles outright, I don't do payments.
So your plan is get a wrecked 2018 with battery, BMS, etc etc etc intact for $7-10,000? But then again, you wouldn't know if they were "all" ok since it would appear you need all of it to work. That is quite the gamble.
2011 SL; 44,598 miles. 2013 S; 44,840 miles.2016 S30 deceased. 29,413 miles. 2018 S40; 15,000 miles, 478 GIDs, 37.0 kwh 109.81 Ahr , SOH 94.61, Hx 120.15
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

Oilpan4
Gold Member
Posts: 715
Joined: Wed Jan 09, 2019 10:51 pm
Delivery Date: 10 May 2018
Leaf Number: 004270

Re: Battery Upgrades are very possible

Thu Feb 28, 2019 6:50 am

Not for 7,000 to $10,000.
For one I don't need it right now and I can wait till I can find one in the condition I want at the price I like.
2011 white SL leaf with 2014 batt.
Chargers: Panasonic brick moded for 240v, duosida 16a 240v and a 10kw setec portable CHAdeMO
Location: 88103

james33zz
Posts: 3
Joined: Tue Mar 12, 2019 8:48 am
Delivery Date: 09 Apr 2017
Leaf Number: 303483

Re: Battery Upgrades are very possible

Wed Mar 13, 2019 8:29 am

Oilpan4 wrote:I would be looking for a totalled one at an insurance auction.
The cost would be about 20% of what a new non wrecked one would be.
Good advice, you can also use online car auction like this one https://abetter.bid/en/car-finder/type- ... model-leaf and buy totalled leaf even cheaper. I have replaced my battery already and my friend replaced his tesla battery using this way too.

Oilpan4
Gold Member
Posts: 715
Joined: Wed Jan 09, 2019 10:51 pm
Delivery Date: 10 May 2018
Leaf Number: 004270

Re: Battery Upgrades are very possible

Wed Mar 13, 2019 10:37 am

What? A tesla needed a battery replacement?
Do tell more.
2011 white SL leaf with 2014 batt.
Chargers: Panasonic brick moded for 240v, duosida 16a 240v and a 10kw setec portable CHAdeMO
Location: 88103

bkvszomorito
Posts: 13
Joined: Sun Jul 22, 2018 2:45 pm
Delivery Date: 22 Jul 2013
Leaf Number: 403789

Re: Battery Upgrades are very possible

Fri Apr 19, 2019 12:39 am

My car has 30kWh pack, with 40kWh pack modules. Those modules are from scrapyard, from a vehicle with very low mileage, and perfect SOH. Currently I can drive only 220km with the pack, and it can store approximately 27kWh according to LEAFSpy. This seems to mean, that the 30kWh BMS is limiting the capacity. The pack voltage is 332V around 0% SOC (turtle mode on), and it is 397V when the pack is fully charged. The strange thing is, that the SOH value according to LEAFSpy is 90%, and the Hx is 74%. This means, that the chemistry and the internal resistance is different in case of the 30 and the 40kWh modules.

Do you have any idea, how to get the full capacity of the 40kWh modules? The 40kWh BMS is not compatible with the VCM of the 30kWh car, so it cannot be mounted directly. With this setup, the real SOH (not the calculated one by 30kWh BMS) of the 40kWh should last quite "forever", but it would be nice, to have more range out of the pack.

As I saw, the 40kWh pack with the original BMS should be around 405V with 100% SOC, so there might be the "missing" capacity, but the 30kWh BMS is limiting the voltage around 397Volts, so charging further is not possible.

Any help, to find a solution is appreciated!

LeftieBiker
Moderator
Posts: 12767
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 30 Apr 2018
Location: Upstate New York, US

Re: Battery Upgrades are very possible

Fri Apr 19, 2019 12:59 am

What happens when you fully charge it? Does it try to equalize the cells longer, or for the usual amount of time, at a lower voltage than they can safely accept? I'm not sure why the BMS isn't just trying for the usual top voltage, and more fully charging the 40kwh modules than it is...
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: 14028
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Feb 2018
Leaf Number: 314199
Location: Olympia, WA
Contact: Website

Re: Battery Upgrades are very possible

Fri Apr 19, 2019 6:37 am

bkvszomorito wrote:My car has 30kWh pack, with 40kWh pack modules. Those modules are from scrapyard, from a vehicle with very low mileage, and perfect SOH. Currently I can drive only 220km with the pack, and it can store approximately 27kWh according to LEAFSpy. This seems to mean, that the 30kWh BMS is limiting the capacity. The pack voltage is 332V around 0% SOC (turtle mode on), and it is 397V when the pack is fully charged. The strange thing is, that the SOH value according to LEAFSpy is 90%, and the Hx is 74%. This means, that the chemistry and the internal resistance is different in case of the 30 and the 40kWh modules.

Do you have any idea, how to get the full capacity of the 40kWh modules? The 40kWh BMS is not compatible with the VCM of the 30kWh car, so it cannot be mounted directly. With this setup, the real SOH (not the calculated one by 30kWh BMS) of the 40kWh should last quite "forever", but it would be nice, to have more range out of the pack.

As I saw, the 40kWh pack with the original BMS should be around 405V with 100% SOC, so there might be the "missing" capacity, but the 30kWh BMS is limiting the voltage around 397Volts, so charging further is not possible.

Any help, to find a solution is appreciated!
Don't quote me but it seems with others, you simply need a wholesale switch over of the LBC, BMS to make it work. So getting more range will be spendy or you could simply use as is and have a 30 kwh pack that will take years, maybe decades before it starts showing any degradation.

What gets me is your 332 volts to turtle? That is far far far above any previous LEAF pack of any size?

Remember the LBC math error that was forcing the BMS to report false degradation which led it to restrict full usage of the pack? Sounds like you got the same thing going on there.
2011 SL; 44,598 miles. 2013 S; 44,840 miles.2016 S30 deceased. 29,413 miles. 2018 S40; 15,000 miles, 478 GIDs, 37.0 kwh 109.81 Ahr , SOH 94.61, Hx 120.15
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

bkvszomorito
Posts: 13
Joined: Sun Jul 22, 2018 2:45 pm
Delivery Date: 22 Jul 2013
Leaf Number: 403789

Re: Battery Upgrades are very possible

Fri Apr 19, 2019 6:55 am

What gets me is your 332 volts to turtle? That is far far far above any previous LEAF pack of any size?

Remember the LBC math error that was forcing the BMS to report false degradation which led it to restrict full usage of the pack? Sounds like you got the same thing going on there.
The BMS upgrade has already been done on the 30kWh pack before the modification. Unfortunately the original 40kWh BMS does not work with the systems of the 30kWh LEAF.

For me, it seems, that the turtle mode is not only depending on the voltage of the pack, but some other factors, as the internal resistance or different calculations.

Yesterday, I measured the charging power, and I have consumed 24.5kWh, to charge from 22% to 100% (according to the 30kWh BMS / displayed percentage) by means of 32A wall box / 6.6kW onboard charger.

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