Advantage 1: No exposed metal, no fear of bad weather, no  more worries about leakage accidents 

Advantage 2: Dislocation offset does not affect the charging  rhythm, and you no longer have to worry about tearing off the wires. 

Advantage 3: Stop and charge, go when full, convenient and fast,  no need for personnel to plug and unplug the battery at high risk 

Advantage 4: Power changes have minimal impact on  transmission efficiency, suitable for various types of largecapacity electric ships 

Advantage 5: no mechanical contact, long service life, no loss,  low overall cost