I have a Victron Multiplus3000 inverter/charger, a Victron MPPT 100/50 solar regulator, a Victron Smart Panel display and the Victron USB interface providing the power control in my caravan. I also have two 200Ah lithium batteries. With the solar regulator it starts each day in bulk mode but then drops back to absorption mode after a while. Does this regardless of battery charge. For example the battery may be at say 75% and regardless of this it will still drop into absorption mode and reduces the power coming from the panels. I would have thought that it would stay in bulk mode until the battery is in a more charged state then go to absorption/float mode as battery approaches capacity. I know the battery is still needing/taking charge as when it goes to absorption mode I hook up the generator and it will take whatever the generator can put out until it gets to around 95% or so as displayed on the smart panel then winds itself back. Seems to me the Solar charger modes are simply working off a timer and not necessarily on a charge required basis. Is there a setting that needs to be changed or is this normal and correct operation? I have the rotary dial set on 7 (Lithium battery) on the 100/50. Any ideas, or this normal operation?
