after having all the bother with my battery's I ended up getting 6 x 6 volts Trojans T105s fitted , it's the best thing that I have done I am now getting up in the morning to see 80% plus on the smart gauge & victron 700 then after 3 or 4 hrs cruising battery's are back up to 100% on the smart gauge and victron 700 , I have then been putting the genny on and within 15 to 30 minuets the inverter is in float mode , I now just need to master the victron to go into equalize mode happy days