I have 2x10kWh 91kg GSO brand Chinese managed batteries with 1 phase Multiplus II 5000 with a Cerbo. Testing them for 3 phase EES setup that I plan to install next year with 80kWh of capacity. cost basis per battery being 1000USD + shipping and taxes.
Everything worked almost perfectly with 16.4. firmware with said batteries via CAN bus to cerbo.
I got all the information that is specced by Victron, but I kept receiving errors every 1 to 3 months with “internal failure” message.
I googled if that was a known issues and with the BMS, that had a firmware fix. I could not find the issue with Seplos, but found the same problem with some Pylontech customers:
https://community.victronenergy.com/questions/182659/pylontech-us3000c-us5000-internal-failure-problem.html
I sent the link to my alibaba battery supplier that communicated the issue and my findings and problems to Seplos. After a few days they sent me a new firmware to test to fix this issue.
So far after little over a month I have not received any errors for internal failures. Fingers crossed that this has finally resolved the entire problem.
The latest firmware that I found in some German forums for Seplos V2 was 16.6.6 in some places. This firmware I got was dated 27.5.2024 and version number 16.6.10
CAN1101[V16.06.10_PN01_240527].ehex
Just FYI if anyone else is having this issue and have a older version in use.
