DBPOWER makes jump boxes in varying amperage/mAh ratings, and the larger the rating the bigger the engine they can start.
It comes with large alligator clips for attaching to a vehicle batter when jump starting, and comes with both a wall-wort-style charger as well as a standard 12v automotive port charging adapter, too.
It also is where the ports for charging the unit are. The DBPOWER jump box also has two USB ports, one of which is “smart” for charging phones and other mobile devices. The main on-off switch for the unit as well as the power button are also found here.
But charging things isn’t the only feature that the DBPOWER has.
Don’t worry about using it, though. You certainly have a lot of battery capacity!