BMS for nissan leaf modules


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s4sajii

New member
Joined
Jul 16, 2020
Messages
4
Hi,
Can some one recommend me affordable BMS for nissan leaf modules.

regards.
 

Crimp Daddy

Member
Joined
Feb 21, 2018
Messages
974
Very vague question... What type of load and what is your price point. How much balancing current do you require? If your cells are well balanced then you can get away without a high balance current and move into a more affordable monitoring only solution like a Bluetooth board.
 

daromer

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Oct 8, 2016
Messages
5,662
Define affordable?

What are your must and nice to have demands?
 

slimf

Member
Joined
Sep 26, 2017
Messages
223
You can use the WM4 with the leaf mons or the WM5 (I have WM5 for my leaf wall) the leaf mons and WM4 will balance a pack faster thou.
 

s4sajii

New member
Joined
Jul 16, 2020
Messages
4
slimf said:
You can use the WM4 with the leaf mons or the WM5 (I have WM5 for my leaf wall) the leaf mons and WM4 will balance a pack faster thou.

Any other BMS that can work... other than wm4/wm5 ?

Regards
 

copec

New member
Joined
Apr 22, 2020
Messages
18
s4sajii said:
Hi,
Can some one recommend me affordable BMS for nissan leaf modules.

regards.
I'm using a cheap generic 60A BMS, but then using a dc/dc buck converter with a Tyco contactor. That handles the voltage constraints for each cell and whole battery. I also have it fused with a type-T fuse (which you should anyways even if you have a BMS that can use a shunt to monitor current and shutdown).

I have one of those 2A active balancers too.

I'll eventually get a full featured BMS.

I'm only using this on 14 leaf modules right now, although I'm working on adding 49 more.

Also, the offgridsolar book guy sells https://ogsolarstore.com/collections/store-battery-pack/products/bms-and-stack-switch-gear but it cost more then what i've spent collecting 63 leaf modules so far.
 
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