Operate Berkleys Power Pack fishing lights or other 12-volt accessories on the go with the Power Pack Battery System. USB connection even allows you to charge smartphones, tablets and other electronic devices. Also features two posts for battery clips, vehicle plug outlet and battery meter. Pack supplies power for up to 12 hours. Includes battery pack and AC charger. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Battery Packs.