Now you can use the Strikemaster Lithium 40v battery for more than just powering the ice drill motor. With this adapter you can use the 40v battery to power your sonar, charge your phone, tablet or camera for example.The adapter is equipped with: 2 USB-A ports. 5V at maximum 1A 1 USB-C port. 5V at maximum 1A Universal connectors, positive and negative. 12v at maximum 10A Quick connectors with crocodile clips Illuminated main switch Average number of charges from a fully charged 40v battery: Smartphone: 8 charges Tablet: 3 charges Laptop: 4 charges Action camera: 250 charges 40V 5Ah corresponds to approx. 15Ah 12V. An average 7 inch fishfinder consumes about 1A/hour.Only works with StrikeMaster's 40v battery.