Buy from Amazon.com : http://fave.co/1Ipbbao <br /><br />Canon CPE3 Compact Battery Pack for Speedlite 420EZ/540EZ/550EX/580EX<br /><br />Product Description : <br />Compact battery pack for Canon Speedlite flashes <br />17-second full-power recycling time <br />Up to 432 flashes per charge <br />Renowned Canon quality <br />For use with 420EZ 540EZ 550EX and 580EX Speedlites
