EXCALIBUR 9017 -WC Weather Channel Battery Booster. 12-foot, 16 AWG cable gives you plenty of length to connect to another cars battery. Built-in circuit-breaker protects against overloads and surges. LED eliminates guessing by indicating charging and OK status. The Battery Booster is very simple to use. Just plug both ends into each cars cigarette lighter receptacle. In about 10-15 minutes you have enough power to start your car again.