JJC External Flash Battery Pack replaces Canon， Black (BP-CA1)<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> JJC BP-CA1 battery pack works with a vast array of different flashes (including Canon， Nikon， Sony and Pentax)--just change the connecting cable for the correct flash </span></li><li><span class="a-list-item"> Option to use 4 or 8 AA Alkaline， Lithium or Ni-MH batteries at a time </span></li><li><span class="a-list-item"> Greatly increases the number of flashes and reducing recycling time </span></li><li><span class="a-list-item"> With 1/4-20" screw to attach the battery pack to your camera bottom or other places. Includes a carrying case. </span></li><li><span class="a-list-item"> Replaces Canon CP-E4， for Canon 600EX II-RT /600EX-RT / 580EX II / 580EX / 550EX / 540EZ / 430EZ / MR-14EX / MT-24EX </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41qcDoqtpiL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31bJQ9T3iqL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31zsuEqtqkL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41U19nW2rdL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41mo7aflD9L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/410QmqB9VNL.jpg" noproxy>