Sailors

Hi. I am new to Lithiums. Just bought 2x Esener 25.6v and had it connected to my S2330 Sun solar inverter, Hybrid 24v 3kva. My inverter does not give me options to set bulk and float higher than 14. The person I bought it from, does not understand why settings does not go higher especially it being a 24v inverter. I then purchased a mppt solar charge controler so that I can at least set the bulk and float to 26. My 2x esener batteries are connected parallel powered by 2x 550w solar panels connected in series. I only have 1x 24v fridge connected to the load into the mppt controler, running all day and night and my wifi router connected to my inverter. At night my tv (150w) and twice a week the eco washing machine. My batteries are on 23 at 4am in the morning. I cannot understand why my batteries are so low every morning. Any advise will be greatly appreciated.