Lithium Batteries, Dry Acid, AGM and Gel are longer than the batteries. It provides 60 %effective use of other batteries by discharge for a longer period of time. You should request the BMS (Battery Management System) regulator with Victron Energy Lithium battery. BMS prevents the excessive discharge of the lithium battery and adapts the alternator current to the required voltage and provides the opportunity to charge the lithium battery during cruising.