I appreciate all the earlier feedback.
After a few months, the system started “floating” at 13.5 instead of the earlier 13.7. I wasn’t worried but it was interesting.
Then, 3 weeks ago, i went on a road trip and continued to occasionally check the system remotely via CerboGX. The “float” voltage went up to 14.0 and has stayed there. Note: the system is connected to shore power with the Quattro set to Charge Only.
I got home today and cycled the Quattro off and on but it settled back in at 14.0 with batteries showing 96.4% and charge current fluctuating between small discharge rates and 7amp charge rate.
Any thoughts?
If you have updated the Lynx NG BMS firmware then the voltages have changed to 14.0V and 13.5V. The only time I have seen 14.0V held for a long period is if the cells need balancing. The other reason could be if your battery monitor settings for synchronisation are wrong because the charger stays at 14.0V until synchronised to 100%. Finally, if charging is coming from a device that is not controlled via DVCC.
Thank you.
I will check this all out and respond back.
What is the best way to do a cell rebalance? I have four 200NG batteries in parallel.
I have found setting a low tail current and long synchronisation time keeps the batteries in absorption for longer by delaying the synchronisation to 100%. If you manually reset the SOC 5% lower before the absorption then the BMS waits for the synchronisation which will not occur due to amp hour couting with the 5% offset. However, having said all that the Lynx NG BMS should do this automatically if the cells are not well balanced.
Thank you for all the advice.
I ended up just power cycling the BMS and the problem seems to have corrected itself.
I did discover something interesting during this. My generator is connected to AC in 1 and shore power is connected to AC in 2. However, on my Cerbo GX touch 50 display, they are shown backwards. Any comment or should i just go into settings and rename them?