A portable cooler (100) includes an insulated body (110) that defines a main interior storage space, and a lid (130, 140) structured to at least partially cover the main interior storage space. The lid (130, 140) includes an integrated blender (170) or an integrated blender drive. Components of the blender (170) may include a source of electrical power, an electric motor, and a blender spindle mounted through a surface of the lid (130, 140) and coupled to the electric motor. Other embodiments include integrated accessories, such as an integrated storage compartment, a set of wide wheels to minimize drag, an overall cooler shape that promotes ease of use over soft ground, quiet wheels, an improved drain, integrated plate and utensil storage, a telescoping handle with leverage plate, an integrated tie- down system, a unique lid system, and a system for utilizing the integrated battery for various purposes.