Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Normal
As skipsteel says, you must connect to a point that can support the current you intend to draw. The battery positive is connected via a cable which is sized to carry the maximum charging current of the battery, which will be well below what the converter can output. If that is 60A (a guess), then the most you can draw from that point is 60*12=720W.