In pass-through mode, the ESS system (with batterylife enabled) is very slowly draining the battery at about -0.5Ah (for 820Ah LFP battery bank) even though:
- It is already 5% below minimum 80% SOC
- Inverter is in pass-through mode since the grid is available - no power failures in past few days
- ESS is in #5 mode, and claims to be slowly charging the battery
It is a Quattro inverter set up with Cerbo GX and SmartShunt battery monitor. The system is grid-tie, and is in pass-through mode. Screenshot attached.
Will appreciate help with resolving it. I looked in ESS manual but found nothing about this condition.