Ten different nanotextured TiO2 films were prepared from six commercial and four laboratory synthesized precursors. Krypton adsorption isotherms on the films and parent powders indicate the effect of sintering and agglomeration. Electrochemical characterization of the films was aimed at double-layer charging and Li+ insertion. The relations between the film’s morphology adsorption properties, and electrochemical behavior in the accumulation regime are discussed.