I have an off-grid system with a Multiplus 24/5000, MPPT 100/35 and a fronius primo 3.0 on the ac out. After the batteries have charged at 100% and the absorption is finished, they begin to slightly discharge althoug there is a lot of solar power to manage the loads and keep them charged. In detail the mppt 100/35 turns of and does not provide power.
The system is working with an ess assistant with "keep batteries charged" enabled. Any ideas?