We just purchased but haven’t taken possession of an Influence 3704 and it comes standard with a 320w solar panel to run the 12 volt fridge. We upgraded to a 2000w inverter so we can use some things while not connected to power. I am seriously considering purchasing a Battleborn 270ah battery for the rig. My question is, how well will a 320w panel keep up with charging if we used things like lights, the tv on occasion and small appliances like a coffee maker, etc. Will this one panel be sufficient or should I be looking into adding another panel?