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Dala
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Posts: 209
Joined: Sun Oct 28, 2018 11:24 am
Delivery Date: 01 Jan 2015
Leaf Number: 316851
Location: Finland
Contact: Website

Re: Battery Upgrades are very possible

Sat Apr 25, 2020 6:46 am

coleafrado wrote:
Sat Apr 25, 2020 5:55 am
Is he using a re-programmed original BMS?
Yeah, the only way to make a bruteforce upgrade tolerable is to use a Muxsan CAN bridge and add more GIDS to the communication between battery and car. It is inferior compared to using a natively bigger BMS such as the 30/40/62kWh BMS, but it will be better than nothing. More explained here. https://github.com/dalathegreat/Nissan- ... e-Upgrade/

ginetto
Posts: 3
Joined: Mon Sep 16, 2019 11:32 pm
Delivery Date: 17 Sep 2019

Re: Battery Upgrades are very possible

Sat Apr 25, 2020 7:18 am

coleafrado wrote:
Sat Apr 25, 2020 5:55 am
The lack of vertical mechanical barriers is a little concerning. Is he using a re-programmed original BMS?
as far as i know the bms remain the same of the 24kw, e.g. for the the same number of battery modules. No idea if Jesus planned to reprogram it to fit new battery protections paramters.

DaveinOlyWA
Posts: 14810
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Nov 2019
Leaf Number: 319862
Location: Olympia, WA
Contact: Website

Re: Battery Upgrades are very possible

Sat Apr 25, 2020 3:35 pm

Since the pack remains an item you cannot directly purchase, part numbers will be hard to find along with any associated pricing. The current "sale" price is apparently not an official price as some dealers tell me the catalog (that we can't see) still lists the pack at $6 K "after" exchange.
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; 10,081 mi, 95.03% SOH
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

LeafKorolev
Posts: 1
Joined: Fri Apr 17, 2020 4:06 pm
Delivery Date: 23 Oct 2018
Location: Russia Korolev

Re: Battery Upgrades are very possible

Sat May 30, 2020 2:32 pm

Dala wrote:
Sat Apr 25, 2020 6:46 am
coleafrado wrote:
Sat Apr 25, 2020 5:55 am
Is he using a re-programmed original BMS?
Yeah, the only way to make a bruteforce upgrade tolerable is to use a Muxsan CAN bridge and add more GIDS to the communication between battery and car. It is inferior compared to using a natively bigger BMS such as the 30/40/62kWh BMS, but it will be better than nothing. More explained here. https://github.com/dalathegreat/Nissan- ... e-Upgrade/
I'd like to make changes at current sensor's signal. What's type the current sensor Leaf hi voltage battery: analog or digital? I'd like to integrate CAN-bridge with current sensor corrector.
Leaf 2011 ZE0. SOH 70%. Russia, Korolev.

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Dala
Forum Supporter
Posts: 209
Joined: Sun Oct 28, 2018 11:24 am
Delivery Date: 01 Jan 2015
Leaf Number: 316851
Location: Finland
Contact: Website

Re: Battery Upgrades are very possible

Thu Jun 04, 2020 10:52 pm

LeafKorolev wrote:
Sat May 30, 2020 2:32 pm
Dala wrote:
Sat Apr 25, 2020 6:46 am
coleafrado wrote:
Sat Apr 25, 2020 5:55 am
Is he using a re-programmed original BMS?
Yeah, the only way to make a bruteforce upgrade tolerable is to use a Muxsan CAN bridge and add more GIDS to the communication between battery and car. It is inferior compared to using a natively bigger BMS such as the 30/40/62kWh BMS, but it will be better than nothing. More explained here. https://github.com/dalathegreat/Nissan- ... e-Upgrade/
I'd like to make changes at current sensor's signal. What's type the current sensor Leaf hi voltage battery: analog or digital? I'd like to integrate CAN-bridge with current sensor corrector.
Check out this fork of the bruteforce upgrade, they are constantly improving it https://github.com/DanVidLop/Nissan-Lea ... ce-Upgrade
This was used to integrate a 64kWh battery with the original 24kWh LBC

dean
Posts: 5
Joined: Tue Dec 10, 2019 1:30 pm
Delivery Date: 11 Aug 2017
Leaf Number: 425967

Re: Battery Upgrades are very possible

Fri Jun 12, 2020 9:29 am

The renovables del sur guys in Spain have a new video out showing their new battery replacement.

https://www.youtube.com/watch?v=b4a_HJQ-Yd4

They appear to gut the entire existing pack and replace it with new cells. Not sure what they use of the existing BMS and what-not. Looks like they are able to fit in 64 kWh into the new pack.

Says they are shipping to Europe and Mexico, US to stay tuned. https://evbatteryrebuilds.com/en/ev-battery-rebuilds/

ginetto
Posts: 3
Joined: Mon Sep 16, 2019 11:32 pm
Delivery Date: 17 Sep 2019

Re: Battery Upgrades are very possible

Sat Jun 13, 2020 2:20 am

dean wrote:
Fri Jun 12, 2020 9:29 am
Not sure what they use of the existing BMS and what-not.
They use the original BMS. Does not change battery topology, but only chemical and capacity bue voltage remain the same for each module.
as far as I know here is not BMS reprogramming... just used the original one.

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Marktm
Gold Member
Posts: 560
Joined: Thu Jan 21, 2016 10:49 am
Delivery Date: 09 Jan 2016
Leaf Number: 022737
Location: Houston, TX

Re: Battery Upgrades are very possible

Sat Jun 13, 2020 9:30 am

dean wrote:
Fri Jun 12, 2020 9:29 am
The renovables del sur guys in Spain have a new video out showing their new battery replacement.

https://www.youtube.com/watch?v=b4a_HJQ-Yd4

They appear to gut the entire existing pack and replace it with new cells. Not sure what they use of the existing BMS and what-not. Looks like they are able to fit in 64 kWh into the new pack.

Says they are shipping to Europe and Mexico, US to stay tuned. https://evbatteryrebuilds.com/en/ev-battery-rebuilds/
Great find and post!

Some musings:

A true 120 mile range would work for me in a (2011-2015) Leaf. So..... what if economies of scale allow this to take off in South Texas? A SWAG for me could be (comments requested as it's probably simply a WAG!):
- Realistic value of such a Leaf with 8 bar or less battery - say $4000 for solid condition except worn out battery, IF I had to go out and purchase
- Sell the old battery for $1000 or some type of realistic "credit"
- A local "evbatteryrebuilds" installs a new ~34 kWh LG battery pack - $10,000 all in with GOM "fix" and all battery swap labor/materials as part of deal
- With all in of around $13,000 to $14,000 I'd have a Gen II Leaf that would hopefully go at least 100 miles for several years with low degradation

Still not sure I'd go for it, or continue to look for a 2016 Leaf for around $11,000 - $12,000 with either a great battery OR one that will be replaced under warranty.

IMO If you could get a good condition (say 2012 or 2103) Leaf and the LG battery for $10,000 all in, likely a no-brainer, however that would require some serious reduction in the cell pack costs.

Can this eventually happen? The video "prototype" indicates that it's real rather than Fenix Power's hype. If so, I might be just a matter of time and demand from all the Leaf's out there!
2012 Leaf SL; 46,000 miles. Battery replaced November 1st, 2016.

DaveinOlyWA
Posts: 14810
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Nov 2019
Leaf Number: 319862
Location: Olympia, WA
Contact: Website

Re: Battery Upgrades are very possible

Sat Jun 13, 2020 9:36 am

Marktm wrote:
Sat Jun 13, 2020 9:30 am
dean wrote:
Fri Jun 12, 2020 9:29 am
The renovables del sur guys in Spain have a new video out showing their new battery replacement.

https://www.youtube.com/watch?v=b4a_HJQ-Yd4

They appear to gut the entire existing pack and replace it with new cells. Not sure what they use of the existing BMS and what-not. Looks like they are able to fit in 64 kWh into the new pack.

Says they are shipping to Europe and Mexico, US to stay tuned. https://evbatteryrebuilds.com/en/ev-battery-rebuilds/
Great find and post!

Some musings:

A true 120 mile range would work for me in a (2011-2015) Leaf. So..... what if economies of scale allow this to take off in South Texas? A SWAG for me could be (comments requested as it's probably simply a WAG!):
- Realistic value of such a Leaf with 8 bar or less battery - say $4000 for solid condition except worn out battery, IF I had to go out and purchase
- Sell the old battery for $1000 or some type of realistic "credit"
- A local "evbatteryrebuilds" installs a new ~34 kWh LG battery pack - $10,000 all in with GOM "fix" and all battery swap labor/materials as part of deal
- With all in of around $13,000 to $14,000 I'd have a Gen II Leaf that would hopefully go at least 100 miles for several years with low degradation

Still not sure I'd go for it, or continue to look for a 2016 Leaf for around $11,000 - $12,000 with either a great battery OR one that will be replaced under warranty.

IMO If you could get a good condition (say 2012 or 2103) Leaf and the LG battery for $10,000 all in, likely a no-brainer, however that would require some serious reduction in the cell pack costs.

Can this eventually happen? The video "prototype" indicates that it's real rather than Fenix Power's hype. If so, I might be just a matter of time and demand from all the Leaf's out there!
I personally think its better to stick with LEAF packs. Moving to 40 kwh is available thru out the country. But my real question is how many application of these LG cells exist without TMS?

Since posting this, 3 more have started up and there are "rumors" (places claiming to do this but I have yet to see the result of any of their work on social media) of more.

https://daveinolywa.blogspot.com/2020/0 ... es-to.html
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; 10,081 mi, 95.03% SOH
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

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Marktm
Gold Member
Posts: 560
Joined: Thu Jan 21, 2016 10:49 am
Delivery Date: 09 Jan 2016
Leaf Number: 022737
Location: Houston, TX

Re: Battery Upgrades are very possible

Sat Jun 13, 2020 5:08 pm

mux wrote:
Fri Nov 15, 2019 1:07 am
Well, that's going to take another year at least then.
mux;
After watching the "LG install video" from evbatteryrebuilds, it appears physically, they are doing the conversion. I'd sure like your opinion on the reality of pack construction, connector viability (appears quite "home built"), vibration resistance, heat dissipation, re-wiring techniques, BMS fit for service, potential CAN bridge success, etc. etc. The fact that they had no safety process and used a fork lift for assembly make me question the reality of their eventual viability as a professional supplier. I guess if it's just a prototype...........
2012 Leaf SL; 46,000 miles. Battery replaced November 1st, 2016.

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