Godox Propac PB960 Flash Power Battery Pack Dual Output for Canon Sony Nikon Metz Camera (Orange) Large-capacity 4500mAh lithium battery, removable and replaceable battery module Dual outputs for powering two flashes at the same time without reducing recycling time Takes only 1s to charge Canon 580EX II, Nikon SB900 and Sony F58AM flashes at maximum power Adopts heat-resistant nylon plastics, ensures higher safety and reliability Simple LED panel, full displays the remaining power and working state