I got an expansion 300K and plugged it into my existing AC500 and the original better. When I got the battery connected, I got a 103 BMS Communication Cable Error. Any ideas on why I am getting this on the expansion battery connection
Hi @cweb, We would like to know how you connected the B300K. Please make sure that the locks on both ends of the cable are securely locked. Otherwise, it can cause a 103 error.
If this doesn’t resolve the issue, please try connecting the B300K to a different battery expansioni port on the AC500 to rule out any issues with that port.
Does this help?
That fixed it, thanks for the quick feedback.
1 Like
Hi @cweb, Thank you for letting us know, I am glad to hear that!
We hope everything goes smoothly from here!
Please feel free to contact us if you need our help.