REC has just identified an issue with the standalone 2Q and have issued an update:
Firmware update link: https://rec-bms-na.com/download/41/rec-2q-series-bms/1340/rec-2q-firmware-update-1_2_18-aug-2023.zip
Thanks!
Rick
From REC:
Dear Customers
We have found a software bug on the new stand-alone 2Q BMS units. In case of error 10 (wrong cell measurement – below/above normal ) above normal the BMS still performs balancing while signaling error. We apologize for the situation.
Please update to the newest firmware version.
2Q BMS serials under the number 24 should be updated with the 17.bin, while above with 18.bin. REC WiFi module should be used to perform updates.
Slave firmware is OK.