- Synchronised operation for multiple batteries in parallel via CANbus function;- Battery voltage detection to compensate for voltage losses caused by cable resistance;- The right amount of charge: variable absorption time.- BatterySafe mode: preventing damage due to excessive gassing.- Less maintenance and ageing when the battery is not needed: storage mode;- Temperature compensation to extend the battery life.- 185-265 VAC supply.- Provision for possible Li-ion battery charger (Life 904).