Salvage EV cell advice

Batteries, Chargers, and Battery Management Systems.
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Yermommy   1 W

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Salvage EV cell advice

Post by Yermommy » Nov 07 2018 7:01pm

I've done some reading on ES about salvage battery packs from cars like Nissan Leaf, Chevy Volt, Tesla, etc. Is it really as simple as buying something like this and assembling them into a 72v pack? Link below:
https://www.ebay.com/itm/Nissan-Leaf-Ba ... :rk:5:pf:0


Aside from a bms for charging, this seems like a pretty cost effective way to build a 4.7kwh battery that can put out thousands of watts. Is there something I'm missing, aside from the fact that these are used cells?

999zip999   100 GW

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Re: Salvage EV cell advice

Post by 999zip999 » Nov 07 2018 8:14pm

What's it for ? And all are connected a little to a lot of different ways. Most times they give a little big and heavy for a bike. Many theads hear on E.S. So what's it for ?
Last edited by 999zip999 on Nov 07 2018 10:01pm, edited 1 time in total.

Yermommy   1 W

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Re: Salvage EV cell advice

Post by Yermommy » Nov 07 2018 9:30pm

999zip999 wrote:
Nov 07 2018 8:14pm
What's it for ? And all are connected a little to a lot of different ways. Most times they give a little big and heavy for a bike. Many theads hear on E.S. So what's it for ?
I'm welding a custom frame for a small e-motorcycle to commute around the city. I figured if I get the dimensions of the battery, I can design a battery box to fit into the frame. I'm more concerned about the functionality of the cells rather than the dimensions/weight.

mark5   100 kW

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Re: Salvage EV cell advice

Post by mark5 » Nov 07 2018 9:48pm

Yermommy wrote:
Nov 07 2018 7:01pm
I've done some reading on ES about salvage battery packs from cars like Nissan Leaf, Chevy Volt, Tesla, etc. Is it really as simple as buying something like this and assembling them into a 72v pack?
Here's someone's example using Nissan Leaf batteries:

Leaf Cells in a Scooter by Benjamin Nelson
http://300mpg.org/2016/06/02/leaf-cells-in-a-scooter/

Installing Nissan Leaf Batteries in an Electric Scooter by Benjamin Nelson (length: 18m44s)
https://www.youtube.com/watch?v=pO08NL_J5vA


Nissan Leaf Lithium Module Conversion from 2S2P to 4S1P by qwqehwekrhlfjghdklfj (length: 27m54s)
https://www.youtube.com/watch?v=kAznO_p_rEY

Yermommy   1 W

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Re: Salvage EV cell advice

Post by Yermommy » Nov 07 2018 10:04pm

Those are both excellent videos, thanks for providing them @mark5

miro13car   1 MW

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Re: Salvage EV cell advice

Post by miro13car » Nov 08 2018 5:57pm

I am riding on Leaf 11S second generation cells.
You probably know that 4cell modules are 1st gen
8cell modules are 2nd gn modules.
Eplus, Bionx

Grantmac   10 kW

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Re: Salvage EV cell advice

Post by Grantmac » Nov 08 2018 9:00pm

What is the configuration on the 8 cell 2nd Gen modules?

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