What is batmans main power?

Answer 1

Here are Batman's

Skills, abilities, and resourcesUnlike many superheroes, Batman has no superpowers and instead relies on "his own scientific knowledge, detective skills, and athletic prowess." In the stories Batman is regarded as one of the world's greatest detectiveshttp://www.answers.com/topic/batman-fictional-superhero#cite_note-101In Grant Morrison's first storyline in JLA, Superman describes Batman as "the most dangerous man on Earth," able to defeat a team of superpowered aliens all by himself in order to rescue his imprisoned teammates.http://www.answers.com/topic/batman-fictional-superhero#cite_note-102 He is also a master of disguise, often gathering information under the identity of Matches Malone, a notorious gangster.

Answer 2

None. Batman has no "powers".