2nd parallel battery bank installation and BMS failure. Adding 15kWh of storage capacity.

In this video we will install the 2nd battery bank in our storage shelf. This all seems to be straight forward as I will just copy the design from the first battery bank below which works great. I also show you something I found about the clamp terminals I use the for the balance cables.
The installation did not cause any dramas until I wanted to turn on the new HELTEC BMS. It did not work as expected, cell voltages not showing correctly and error messages popping up in the app and display. After 2h of fault finding and troubleshooting I replaced it the with the Overkill Solar BMS. This BMS turned on right away with no problem.
Finally we do our high power test and use the IR camera to check for hotspots on the battery and cable connections.
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