Patent ID: 7963814

Claim:
A motor-driven watercraft, having a body on which a user at least partially rests or stands and having a flow channel extending through the body for containing a screw driven by an electric motor, wherein the electric motor, batteries, a control device for the electric motor and the screw are at least partially housed in the flow channel, the motor-driven watercraft comprising: the batteries ( 5 , 6 ) housed in a watertight housing ( 9 ) and in heat-conducting contact with at least a portion of the housing ( 9 ), wherein the batteries ( 5 , 6 ) have a voltage of less than or equal to 60 V, the housing ( 9 ) formed at least partially of a material capable of conducting heat and exchangeably connected with the body ( 10 ) of the watercraft, the housing ( 9 ) in heat-conducting contact with flowing water, and a leakage sensor arranged between at least two sealing rings ( 3 . 3 ).