Any recommendations for 14S 30A BMS?

[Dubem]

Hi everyone,

Please does any one have any reliable 14S 30A 48V BMS you can recommend?
I want to use it on a used Lithium battery bank I want to purchase. Any pointers/advise will be well appreciated.

 

[cass3825]

Take a look at the Chargery 16T BMS. @Craig usually has them in stock if you’re stateside.

 

[Dubem]

Thanks a lot @cass3825 for your quick response unfortunately, no Chargery BMS is suitable for 14S 48V.

I need 20 pieces of that BMS.
On AliExpress, I saw this one https://www.aliexpress.com/item/328...earchweb0_0,searchweb201602_,searchweb201603_

It is a Daly so probably good right? A bit pricey for me, considering the number I need.
@Will Prowse and DIYers, any cheaper alternatives please?

 

[Dubem]

Actually, it is 14s 51.8v BMS that is needed.

 

[cass3825]

What is your battery chemistry?

 

[Dubem]

lithium ion battery modules

 

[cass3825]

Thanks a lot @cass3825 for your quick response unfortunately, no Chargery BMS is suitable for 14S 48V.

I need 20 pieces of that BMS

Take another look at this Chargery unit. Why would it require 20pcs?

 

[Dubem]

It cannot charge it; they are for 16s, 24s, etc.

My used Lithium Ion battery bank comprises modules of 14 cells in series (14s). I will need a BMS for each battery module and maybe two spares. Each module is about 3KWH. It is not possible to use the initial BMS it came with because they were in series (high voltage DC)

 

[cass3825]

So if I understand correctly, you have multiple 14S packs arranged in parallel? If so then I agree the best solution is a dedicated BMS per pack.

 

[Dubem]

Each 14s packs actually has a BMS I cannot use. I want replace it with a suitable BMS. Thereafter, I can parallel connect the entire lot.