Good morning everyone I have a question I hope can be answered about charging. I have put together a simple backup power system consisting of four 100 amp hour AGM batteries in parallel I just installed a Renogy battery monitor. I am using a 55 AM PowerMax AC charger. I am not using a charge controller since my solar panels are connected to the grid. And this battery system is purely for grid down situations. If the grid goes down I will simply plug the charger inTo one of my sun power inverters which has 120 V AC output. My question is why do I not see That the system is charging in my battery monitor, it is constantly reading discharge. My inverter is on drawing 7 W but I have no loads connected to the inverter but yet the battery meter is still reading discharge. Is my power max charger too small or is the voltage too low I am currently reading 13.7 V in the system again with no loads connected other than the inverter powered on.