Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
BMS in LG CHEM ESS modules
#1
Does anyone know a way to talk to these? If not any idea what kind of connection this is? These are the ones battery hookup had a few weeks ago.
Thanks,
Will

Reply
#2
If those are the 9.6 khw ones, I just got them. I was told on another forum that the way to communicate with the BMS is by using an RJ48 connector to connect to the CAN H and CAN L inputs on the inverter.
Reply
#3
They are the 9.6kwh. There is no RJ48 on them that I can find. There is a pair of 8 pin connector's on the front though. If you have any other info or could PM me a link I would appreciate it.
Thanks,
Will

Reply
#4
Ok. Another user from Australia provided me that info in another forum and also sent me a couple of picks. I will check first and also take a look at mine this weekend and then PM you.
w0ss likes this post
Reply
#5
FYI - The guy i chatted with had the smaller (6.3kwh i think) version with the rj48 cable connection on the front. I have the larger version like you do and am still trying to figure out how to connect/access the BMS. I will let you know if I get anything figured out.
w0ss likes this post
Reply
#6
Ok, thanks for the info. I bought a connector on digikey that I need to verify it fits. If it does. I will just make a converter board to turn it into a JST connector. All this is assuming I can't figure out the BMS
Reply
#7
OK Please let me know if you have any success.
Reply
#8
no success on the BMS but figured out the connector and pinout. Balance is not the greatest on these if you trust the ISDT BG-8S

Connector is the "MFG : TE Connectivity AMP Connectors / 1318853-2" which cost $5 quantity 1

Reply
#9
That's great progress. Thanks for sharing. I haven't found the time to touch mine since mounting them. What inverter are you using?
Reply
#10
I have a pair of Sunny Island inverters.
Reply


Forum Jump:


Users browsing this thread: 2 Guest(s)