I have a Quattro 24/5000/120 connected to a pair of 12V lithium batteries in series, with a BMV 712 monitoring them.
After the Quattro completes its absorption cycle, and goes to float, I am seeing a constant .7 amp “parasitic” draw that is being reported equally by the BMV and the battery BMS.
It starts almost immediately after absorption is complete and float starts. It shifts from 0 amps, growing to .7 over the span of a few minutes.
That draw will remain constant for hours/days without any action on behalf of the inverter/charger. Even if the battery SOC continues to drop (below 85% at last test).
That draw appears to be caused by the Quattro itself. I established that as follows:
1) there is no other 24V device in circuit. It’s just the Quattro, the bmv, and the batteries.
2) I shut off the Quattro and watched the load drop to 0 amps, as reported by both the bmv and the BMS. Turned it back on and watched it happen again.
Does that behavior make sense?
Is the Inverter supposed to generate a constant draw? I understand it needs its own internal power consumption, but assumed it would come from shore power -which is currently connected.
Will the Quattro at some point stop discharging and return to keeping the batteries, well, floated? Last time I let it get to 85% before forcing a bulk cycle (out of float) by triggering a (heavy) discharge.
The entire time the display on the CCGX just says float and idle.
This is not a grid tied system. Just an RV with 50 amp shore power.
I have rebooted/power cycled both the Quattro and the bmv and removed the batteries from circuit and put back in, for troubleshooting.
Thanks in advance for your help.
