Unfortunately, due to a domestic short circuit, my Quattro Inverter / Charger blew up and had to be replaced with the only available Inverter Charger here in Bolivia which was a MultiPlus 48/5000/70-100. I now have no access to DESS settings and I cannot activate it. My bank of 6 100Ah batteries are just sitting there at 100% charge basically waiting for a power cut. How can I get back to a system where the batteries are being used?