Non OEM Leaf battery upgrade?

Nissan EV Interest Group
User avatar
brunohill
Groupie
Posts: 115
Joined: Thu, 08 Feb 2018, 22:32
Real Name: Phil
Location: Wangaratta

Re: Non OEM Leaf battery upgrade?

Post by brunohill »

192 E63 LG Batteries (the ones Francisco is using) can be made to fit in a leaf battery box. I guess that makes the battery pack twice the original capacity.
Possibly premade packs. 10 packs x 18 batteries and 2 packs of 6 x batteries
Last edited by brunohill on Tue, 29 Jan 2019, 21:26, edited 1 time in total.

User avatar
jonescg
Senior Member
Posts: 3237
Joined: Thu, 21 Jan 2010, 23:05
Real Name: Chris Jones
Location: Perth, WA.

Re: Non OEM Leaf battery upgrade?

Post by jonescg »

Yeah for sure - the energy density of those cells is very impressive.

I'm just trying to find the quickest approach and I think prismatics would be it. I reckon you could also use 18650 cells and a Tesla-style cooling loop, but it's all just weeks and weeks of work. My aim is to swap them out in a day if possible.
AEVA National Secretary, WA branch chair.

User avatar
brunohill
Groupie
Posts: 115
Joined: Thu, 08 Feb 2018, 22:32
Real Name: Phil
Location: Wangaratta

Re: Non OEM Leaf battery upgrade?

Post by brunohill »

jonescg wrote:
Fri, 11 Jan 2019, 13:06
https://www.youtube.com/watch?v=d-ka4-mG_0I
In this video the guy explains how retaining the vehicle's original BMS was the easiest way to keep the vehicle's onboard computer happy.
So I might try and re-pack a Leaf battery with a new BMS and wiring, but have it so you can swap the BMS at the last minute.
Looks like this confirms the problem and provides the answer http://evsenhanced.com/products/hv-batt ... ring-tool/

User avatar
brunohill
Groupie
Posts: 115
Joined: Thu, 08 Feb 2018, 22:32
Real Name: Phil
Location: Wangaratta

Re: Non OEM Leaf battery upgrade?

Post by brunohill »

I am not sure how his extender battery boxes would go in the sunny summers here but his experiments and CANbus knowledge would sure be a useful resource.

https://www.youtube.com/watch?v=MC1NBwZICrQ

User avatar
jonescg
Senior Member
Posts: 3237
Joined: Thu, 21 Jan 2010, 23:05
Real Name: Chris Jones
Location: Perth, WA.

Re: Non OEM Leaf battery upgrade?

Post by jonescg »



Now this looks very promising!
AEVA National Secretary, WA branch chair.

antiscab
Senior Member
Posts: 2550
Joined: Mon, 26 Nov 2007, 05:39
Real Name: Matthew Lacey
Location: Perth, WA

Re: Non OEM Leaf battery upgrade?

Post by antiscab »

Blimey, that's amazing. 44kwh.

I wonder what cells they're using
Matt
2017 Renault zoe - 25'000km
2007 vectrix - 156'000km
1998 prius - needs Batt
1999 Prius - needs batt
2000 prius - has 200 x headway 38120 cells

User avatar
brendon_m
Senior Member
Posts: 467
Joined: Sat, 28 Oct 2017, 11:00
Real Name: Brendon McCarrol

Re: Non OEM Leaf battery upgrade?

Post by brendon_m »

Going by what he said they are LG chem pouch cells that are "numpt" kwh
But the box says 170wh
Screenshot_2019-07-25-04-53-07-354_com.google.android.youtube.png
Screenshot_2019-07-25-04-53-07-354_com.google.android.youtube.png (857.14 KiB) Viewed 1847 times
Screenshot_2019-07-25-04-53-02-279_com.google.android.youtube.png
Screenshot_2019-07-25-04-53-02-279_com.google.android.youtube.png (688.36 KiB) Viewed 1847 times

francisco.shi
Groupie
Posts: 282
Joined: Mon, 17 Sep 2018, 16:30
Real Name: Francisco
Location: Brisbane, Strathpine

Re: Non OEM Leaf battery upgrade?

Post by francisco.shi »

They are probably the LG 63Ah.
They are the only cells that I know of that have the terminals on opposite sides. I have been looking for other pouch cells with terminals on opposite sides and I haven't been able to find any.

User avatar
brendon_m
Senior Member
Posts: 467
Joined: Sat, 28 Oct 2017, 11:00
Real Name: Brendon McCarrol

Re: Non OEM Leaf battery upgrade?

Post by brendon_m »

170wh at 3.6v (my guess is they are ncm cells because they use the original bms) is 47ah.
So 44kwh at 315v is 140ah that makes it 88s3p

francisco.shi
Groupie
Posts: 282
Joined: Mon, 17 Sep 2018, 16:30
Real Name: Francisco
Location: Brisbane, Strathpine

Re: Non OEM Leaf battery upgrade?

Post by francisco.shi »

At 3:33 on the video you can see the cells with a size reference and the text. I can't see the part numbers but they look exactly the same as the LG63 cells I have and if they are LG they will be the 63Ah because the 63Ah are the only cells LG makes that have the terminals on opposite sides.

User avatar
jonescg
Senior Member
Posts: 3237
Joined: Thu, 21 Jan 2010, 23:05
Real Name: Chris Jones
Location: Perth, WA.

Re: Non OEM Leaf battery upgrade?

Post by jonescg »

I see 179 Wh on the side of the box, but yes I suspect they are the LG63 cells. A Leaf needs multiples of 96 of them.
AEVA National Secretary, WA branch chair.

User avatar
brendon_m
Senior Member
Posts: 467
Joined: Sat, 28 Oct 2017, 11:00
Real Name: Brendon McCarrol

Re: Non OEM Leaf battery upgrade?

Post by brendon_m »

So 96s2p of 3.6v 63ah cells gives 44kwh

User avatar
brunohill
Groupie
Posts: 115
Joined: Thu, 08 Feb 2018, 22:32
Real Name: Phil
Location: Wangaratta

Re: Non OEM Leaf battery upgrade?

Post by brunohill »

bruno hill
bruno hill
12 hours ago
@Oid Polar Are they LG E63 batteries?



Oid Polar
Oid Polar
7 hours ago
@bruno hill out of the availability list from here: http://queenbattery.com.cn/our-products ... -cell.html yes, they are e63 - there are no alternatives made by LG Chem.

esyjam
Noobie
Posts: 5
Joined: Thu, 31 Jan 2019, 01:34
Real Name: ERICK MWAMBIJE

Re: Non OEM Leaf battery upgrade?

Post by esyjam »

I would also say definitely LG E63 Batteries.

esyjam
Noobie
Posts: 5
Joined: Thu, 31 Jan 2019, 01:34
Real Name: ERICK MWAMBIJE

Re: Non OEM Leaf battery upgrade?

Post by esyjam »

Testing Package has arrived. About 8Kwh of usable Energy.
20190910_214208.jpg
20190910_214208.jpg (2.65 MiB) Viewed 1458 times
Regards,

doggy
Groupie
Posts: 256
Joined: Tue, 24 Jul 2018, 09:59
Real Name: David Kerr
Location: Sydney
Contact:

Re: Non OEM Leaf battery upgrade?

Post by doggy »

LG E63 are the same ones used in the Renault Zoe which has the same 96sp2 configuration and the same kWHrs (45, 41 usable, 40 claimed= Z.E.40)
Regds,
Dave

RV6
Noobie
Posts: 1
Joined: Tue, 18 Aug 2015, 03:45
Real Name: Neil Bell
Location: Brisbane

Re: Non OEM Leaf battery upgrade?

Post by RV6 »

Hi Guys, I hope the upgrade is all going well. Have just purchased 24kw version leaf and intend to do an upgrade, be it a direct replacement with a larger genuine pack with a man in the middle CAN BUS adaptor ( thats if I can source a battery ) or failing that I will try to build my own pack. Was wondering how progress is going with the LG cells ?

User avatar
brunohill
Groupie
Posts: 115
Joined: Thu, 08 Feb 2018, 22:32
Real Name: Phil
Location: Wangaratta

Re: Non OEM Leaf battery upgrade?

Post by brunohill »


antiscab
Senior Member
Posts: 2550
Joined: Mon, 26 Nov 2007, 05:39
Real Name: Matthew Lacey
Location: Perth, WA

Re: Non OEM Leaf battery upgrade?

Post by antiscab »

so he cut the cans open to replace the pouch cells

That looks like a lot more effort than I would have thought necessary
Matt
2017 Renault zoe - 25'000km
2007 vectrix - 156'000km
1998 prius - needs Batt
1999 Prius - needs batt
2000 prius - has 200 x headway 38120 cells

User avatar
brunohill
Groupie
Posts: 115
Joined: Thu, 08 Feb 2018, 22:32
Real Name: Phil
Location: Wangaratta

Re: Non OEM Leaf battery upgrade?

Post by brunohill »

It may be easier than replacing the bus bars and BMS wiring. Less chance of making a wiring error also.
Attachments
New Battery 2.png
New Battery 2.png (1.01 MiB) Viewed 293 times
New Battery.png
New Battery.png (725.62 KiB) Viewed 294 times

User avatar
brunohill
Groupie
Posts: 115
Joined: Thu, 08 Feb 2018, 22:32
Real Name: Phil
Location: Wangaratta

Re: Non OEM Leaf battery upgrade?

Post by brunohill »

There should even be 6 mm of room in the middle of the new nodule for a cooling plate. To fix the display you could use this... https://www.tindie.com/products/muxsan/ ... rt-rev-25/ once you work out how to program it.

Post Reply