Outdoor battery pack with good heat dissipation effect

The utility model discloses an outdoor battery pack with a good heat dissipation effect. Wherein a battery is mounted at the upper end of the mounting seat; the upper end of the mounting base is connected with an inner shell; a plurality of first heat dissipation openings are dug in the side end of the inner shell. The outer side of the inner shell is sleeved with an outer shell; a plurality of second heat dissipation openings matched with the first heat dissipation openings are dug in the side end of the outer shell. The upper end of the shell is connected with a cover plate; the lower end ofthe shell is fixedly connected with fixing rings; a second screw hole is formed in the fixing ring; second bolts are connected into the second screw holes, a plurality of positioning holes matched with the ends of the second bolts are dug in one side of the upper end of the mounting base, a pair of sliding blocks are fixedly connected to the side edge of the upper end of the mounting base, a pairof sliding grooves matche