Non OEM Leaf battery upgrade?

Nissan EV Interest Group
User avatar
g4qber
Senior Member
Posts: 2029
Joined: Sat, 31 Jul 2010, 06:27
Real Name: Joseph
Location: Perth
Contact:

Re: Non OEM Leaf battery upgrade?

Post by g4qber »

https://youtu.be/FVxEOETTWnQ

Return of the LEAF: Robert drives his range extended EV home from Holland

2021 Model 3 PW MIC RWD FSD - Mon 28 Jun ‘21 - k kms 89
2021 Kia Niro EV Sport - k kms 22

2009 Tango - http://www.evalbum.com/211
Aptera
Cybertruck
On order

Past EVs
2011 i-MiEV
2012 Volt
2014 i3 REx
2014 Model S
2020 FRERWD
drlizau
Groupie
Posts: 135
Joined: Tue, 22 Sep 2020, 17:54

Re: Non OEM Leaf battery upgrade?

Post by drlizau »

I disagree on never changing the battery in a later model. It isn't far to go anywhere in the UK, so a small range can still be useful, but I would see the benefit from a longer range car battery. For example I don't travel to Hay (145km) in the Leaf, because if caught short I would be needing a trip on truck to get to the charger. Then I would have the same problem getting home. A longer range would be worth the price for another battery. I am interested in the NZ one with 500km range !
2017 Leaf 30kWh battery
2nd hand Japanese import
Solar powered as much as practical
RayEllison
Noobie
Posts: 6
Joined: Fri, 04 Dec 2020, 17:21
Real Name: Ray Ellison

Re: Non OEM Leaf battery upgrade?

Post by RayEllison »

This one could be a game changer even for us Aussies.
I'm going to get in touch with them.
rhills
Site Admin
Posts: 608
Joined: Fri, 25 Jul 2008, 01:57
Real Name: Rob Hills
Location: Waikiki, WA

Re: Non OEM Leaf battery upgrade?

Post by rhills »

Hi Chris,
jonescg wrote: Thu, 16 Aug 2018, 16:26 These look to be a generic brand Samsung SDI cell, and could be a winning formula for cost effective, high energy density storage.
http://www.liyuanbattery.com.cn/en/prod ... 81261.html

Their 135 Ah cell promises 220 Wh/kg - about twice that of the original Leaf battery capacity. Weighing in at 2.2 kg each, you would be adding about an extra 50 kg over the original weight.

I think there are a few Leafs out there with lacklustre battery packs in need of a replacement. These could be a good way to shoe-horn 35-45 kWh worth of fresh battery into a Leaf...

I'm keen if you are!
I'm interested to resurrect this discussion a few years (and one pandemic!) down the track as I'm becoming more and more interested in the Nissan eNV200 van which I believe has very similar battery internals to the Leaf? Do you know if such an upgrade would be readily do-able with the eNV200? If so, which cells might be the go today and what sort of cost might be involved?

Cheers,
Rob Hills
AEVA Webmaster
  • 2022 Tesla M3 MIC LR
  • 2014 Mitsubishi Outlander Aspire PHEV
    Petrol Usage to last refill: Jul 2014 - Jul 2022
    Total Petrol: 889.8L
    ODO: 88417
    Av Consumption: 1.01 L/100km
francisco.shi
Senior Member
Posts: 770
Joined: Mon, 17 Sep 2018, 16:30
Real Name: Francisco
Location: Brisbane, Strathpine

Re: Non OEM Leaf battery upgrade?

Post by francisco.shi »

I am working on the leaf now.
I am going to miss the Imiev.
I worked out I can get 40kwh if I use the cells I am using on the Pajero without having to modify the box. The only issue would be to make the wiring harness to connect to the original BMS.
It is early stages. The communications on the leaf are a lot more complicated than on the Imiev. The way some of the data is coded looks like they weren't thinking too much. It also has a mixture of big endian and little endian and the values are spread out over two bytes but do not alone with the byte boundaries. It looks like a big mess. More like they were trying to save space but went to a lot of trouble to save not much.
Rusdy
Groupie
Posts: 306
Joined: Mon, 09 Jun 2014, 16:45
Real Name: Rusdy
Location: Australia
Contact:

Re: Non OEM Leaf battery upgrade?

Post by Rusdy »

francisco.shi wrote: Tue, 25 Jan 2022, 17:13 .... The only issue would be to make the wiring harness to connect to the original BMS.
It is early stages. The communications on the leaf are a lot more complicated than on the Imiev....
To cheer you on here. Loads of leaf owners will count on you Francisco! Keep it up!
rhills
Site Admin
Posts: 608
Joined: Fri, 25 Jul 2008, 01:57
Real Name: Rob Hills
Location: Waikiki, WA

Re: Non OEM Leaf battery upgrade?

Post by rhills »

francisco.shi wrote: Tue, 25 Jan 2022, 17:13 I am working on the leaf now.
I am going to miss the Imiev.
I worked out I can get 40kwh if I use the cells I am using on the Pajero without having to modify the box. The only issue would be to make the wiring harness to connect to the original BMS.
It is early stages. The communications on the leaf are a lot more complicated than on the Imiev. The way some of the data is coded looks like they weren't thinking too much. It also has a mixture of big endian and little endian and the values are spread out over two bytes but do not alone with the byte boundaries. It looks like a big mess. More like they were trying to save space but went to a lot of trouble to save not much.
Reminds me of the fun of programming Z80 and 68000 machine code. I never got very far with it!

But keep up the fabulous work! I'm very keen to see this come to fruition.
Rob Hills
AEVA Webmaster
  • 2022 Tesla M3 MIC LR
  • 2014 Mitsubishi Outlander Aspire PHEV
    Petrol Usage to last refill: Jul 2014 - Jul 2022
    Total Petrol: 889.8L
    ODO: 88417
    Av Consumption: 1.01 L/100km
drlizau
Groupie
Posts: 135
Joined: Tue, 22 Sep 2020, 17:54

Re: Non OEM Leaf battery upgrade?

Post by drlizau »

Those of us who gave our email addresses to EVs Enhanced got a link to Youtube with some Qs and As
https://www.youtube.com/watch?v=JKJ7tEws5mo

2017 Leaf 30kWh battery
2nd hand Japanese import
Solar powered as much as practical
francisco.shi
Senior Member
Posts: 770
Joined: Mon, 17 Sep 2018, 16:30
Real Name: Francisco
Location: Brisbane, Strathpine

Re: Non OEM Leaf battery upgrade?

Post by francisco.shi »

If the battery will cost the same as buying a new car I think it will be difficult to justify doing the replacement.
drlizau
Groupie
Posts: 135
Joined: Tue, 22 Sep 2020, 17:54

Re: Non OEM Leaf battery upgrade?

Post by drlizau »

I thought the price would be about one-third the cost of a new car. Then a Leaf owner would have two batteries, old and new, and the old ones can be sold or used as part of a house power system.
From https://evsenhanced.com/aftermarket-battery/ "16 Blade is being designed to outperform and the outlast the batteries found in new EVs. With this in mind, would you consider our battery at a third of the cost of an equivalent new vehicle to be good value?"
2017 Leaf 30kWh battery
2nd hand Japanese import
Solar powered as much as practical
User avatar
brendon_m
Senior Member
Posts: 1074
Joined: Sat, 28 Oct 2017, 11:00
Real Name: Brendon McCarrol
Location: Perth, Western Australia

Re: Non OEM Leaf battery upgrade?

Post by brendon_m »

Yep, at 1:50 he says approximately a 1/3 of a new car which seems reasonable to me
https://youtu.be/JKJ7tEws5mo?t=109
User avatar
brunohill
Groupie
Posts: 301
Joined: Thu, 08 Feb 2018, 22:32
Real Name: Phil
Location: Wangaratta

Re: Non OEM Leaf battery upgrade?

Post by brunohill »

A fellow in Yakandandah that imports Japanese LEAFs was telling me about CATL replacement batteries today.
I suspect it was these :- https://m.made-in-china.com/product/202 ... 10015.html

A module:-https://www.youtube.com/watch?v=PCarvE0nsMU

I see another one complete here :-https://www.bonnenbatteries.com/product ... ssan-leaf/
Post Reply