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Barrel of Batteries is the first EP released by American indie rock band The War on Drugs, released on March 4, 2008 on Secretly Canadian. The release featured five demos that the band was particularly drawn to. Upon its release, the band gave downloads of the EP away for free for a limited time.
The EP was recorded on lead singer Adam Granduciel's digital 8-track. His vocals have been described as "a modern Bruce Springsteen that had inherited Bob Dylan's vocal cadences as guitarist Kurt Vile sprinkled twinkling guitar around the edge."