Battery (song)

"Battery" is the opening track on Metallica's 1986 album Master of Puppets. The song is known for its fast tempo, complex arrangement, and aggressive lyrics. It is considered a thrash metal classic and a staple of Metallica's live performances.

The song begins with a clean, acoustic guitar intro that gradually builds in intensity. This section is followed by a sudden, dramatic shift into a high-energy thrash metal riff, characterized by heavy distortion and rapid-fire drumming.

Lyrically, "Battery" explores themes of aggression, energy, and the feeling of being charged up and ready for action. The lyrics refer to a sense of pent-up emotion and the need to release it in a powerful and intense way. Some interpretations suggest a connection to the mosh pit culture prevalent at metal concerts, equating the collective energy of the crowd to a "battery" of power.

The composition is attributed to James Hetfield and Lars Ulrich, the band's vocalist/rhythm guitarist and drummer, respectively. The guitar solo is performed by Kirk Hammett. The song's structure is complex, featuring multiple tempo and time signature changes, showcasing the band's technical proficiency. "Battery" is frequently cited as one of Metallica's most challenging and rewarding songs to play.