Motorhome 100ah Bluetooth Lithium Batteries VS Acid Batteries

Anthony from Drury Tires sells and recommends bluetooth Lithium Batteries, He converted to two Lithium batteries to replace three deep cycle Acid batteries. The Acid battries could not keep the voltage above 12 volts when higher voltage items where plugged such as the electric jug and the TV. The invertor uses alot of power and as the batteries were tied they would trip and contol unit would beep to warn that the voltage had dropped below 12 volts.Once it voltage dropped below 12 volts error codes came up on the truma control panel, which need to be cleared.