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I should probably know the answer to this, but I don't. In my new adventure, I'm building a houseboat and want to keep the mini-fridge running 24/7 even when I'm not there so here's my question: realistically, how long can two group 31 batts (each rated at 110AH) connected in series to power a fridge that the specs claim draws 1.1 amps? The batts will be fed with two 100W PV panels and a 24V inverter (and of course, a controller), but I'm wondering what will happen if we get a long period of no/little sun during the day. At what point will the batts be damaged if the SOC drops too low?