used Samsung batteries

[RST]

Hello all,

This is my first post. I have a non-EV but related battery question. I am a solar contractor in Northern California. I have a customer who wants me to install 12 used batteries he purchased for his off-grid cabin. Here is the battery description: Samsung SDI ESS 16S 60 Volt - Used 13.2 kWh Rack Mount Mega 3.3. They apparently came from EV West, which sells them on their website. EV West doesn't want to provide me with any information or instructions for the batteries.
My question is about whether it is safe to install these batteries without hooking them up to a BMS control. If not, is there an aftermarket BMS control that could be added?

Thanks in advance,

Richard

 

[amberwolf]

if evwest won't talk ot you because your'e not the purchaser, yo ushould give your questions to the purchaser and have them pass them on to evwest. if evwest won't talk to them either, then you could see if he can talk to their accounting department about returning / refunding the purchase, since a place that won't even talk to their customers, and sells stuff that *requires* support to get going, is not a place anyone should be purchasing from.


anyway....this page
https://www.evwest.com/catalog/product_info.php?products_id=486
says it already has a monitoring board inside. what exactly that does, and how it works, it doesn't say.

but it does say the modules are actually at another company, Gravity BCI, who may have more info. (though i can't seem to find a website for them, so you may have to do some digging to find out who they are).

a google search on the product name finds a number of sites, including this one
https://jag35.com/blogs/news/samsung-sdi-48v-ess-lithium-battery-rack-mount-modules
that says it will show "you" how to build a diy powerwall out of these units. haven't read it, so you'd have to see if it does what you're after.


if not, there are other bms units you could use; don't know what would suit your purpose without more details about the system and usage (and budget).

 

[RST]

Thanks for the reply amberwolf,
i guess my customer bought them from a third party, not from evwest. the guy at evwest has responded to my emails with simple answers, so he's not being a butthead. he told me i should just remove the samsung bms and add my own favorite one. i've never done one so i'm trying to figure it out. can you recommend an aftermarket bms that would work with the samsung 16s batteries? we have 12 individual batteries- they came in 4 packs.

thanks, Richard

 

[999zip999]

? So 12 batteries of 16s packs in 4 groups of 3 . Each 16s having it's own BMS ? 4.2v x 16 = 67.2v fully charged.

 

[flippy]

check the bluetooth BMS thread, you can get a couple good ones that also have LCD screen options.
rip out the existing boards and slap the cells together to make it 1 big battery, do not make it separate units.
dont forget to program the BMS with the correct values.

set the charge controller to no go higher then 4.1V per cell.

 

[999zip999]

How are the packs going to match his needs for solar storage.