Help please! I have a DIY renuable energy system att my property. I have no utility run 100% off grid. I recently added a 3rd kodak FL5.2 battery module to my system. The new battery was added as slave no2 and pin out was done according to manual. The inverter have communication with master battery and all 3 batteries seem to communicate. When the batteries charge all batteries charge to 100%. Att the time off discharge the new battery stay att 100% and the other batteries discharge to 30% then the system shutdown at 10% SOC while the 3rd battery has 4 green light and seem to be full. What can i do to balance the batteries for an equal discharge?