Gaoneng GNB 11.4V 300mAh 80C 3S XT30 Plug Lipo Battery for URUAV UR85/UR85HD Mobula7 HD Sailfly-X RC Drone Joystick Made of rubber material

Made of rubber material

• Double steering 55KG metal gear steering servo

but maybe there are one or two boats without water cooling system

4V (4S)   Charging Limit Voltage 17

Gaoneng GNB 11.4V 300mAh 80C 3S XT30 Plug Lipo Battery for URUAV UR85/UR85HD Mobula7 HD Sailfly-X RC Drone Joystick Made of rubber materialDescription: Battery Parameter: Gaoneng GNB 11. 4V 300mAh 80C 3S Capacity: 300mAh Plug: XT30 Plug Continuous Discharge Rate: 80C Weight: 28. 5g Size: 19*17*54mm Colors: Standard Colors Caution: Don't over charge, or over discharge batteries. Don't put it beside the high temperature condition. Don't throw it into fire. Don't throw it into water. Package Included: 1 x Gaoneng GNB 11. 4V 300mAh 80C 3S Lipo Battery