A site registering device that registers a site allowing charging where a vehicle battery can be charged, the device including: a position acquisition unit that acquires position information on a charging site where charging of the battery has been conducted; and a registering unit that specifies, on the basis of an actual charging result in the charging site, a category to which the charging site belongs among a plurality of categories, associates the charging site with the specified category and the position information, and registers the thus associated charging site as the site allowing charging.