Good Morning community.
Apparently my requirement is very exotic, at least I can't find a solution for it.
But first my equipment:
- Campervan with DIY Lithium battery (Winston LiFeYPo4 cells), ECS-BMS, separate charging and discharging branch, each with Victron Battery-Protect for UVP on OVP protection
- BMV-712 Smart as battery monitor with temperature sensor attached to the Battery
- SmartSolar MPPT 100/20 Charger
- Cerbo-GX connected to the BMV and MPPT via VE-Direct cable
- DVCC function is active
So what is my goal? quite simple: charge the battery and then use available solar power for the current power consumption.
Unfortunately I can't get any further here. The charging process goes well with my settings up to about 90% SOC, but then the MPPT goes into the float phase and the battery is discharged again. Due to the property of lithium battery, the rebulk voltage will not be reached...
How can I configure the system so that the MPPT delivers the current power consumption and keeps the battery on the SOC until there is no longer enough solar energy available?
I hope someone can help, thanks in advance.