Godox Propac PB960 high performance external power pack provides two ports to independently output to two flashes at the same time. Powerful battery improves the working duration, greatly increases flash times and reduces recycling time. It is a necessary for news photography, wedding celebration, and outdoor portrait photography. • Strong power: 4500mAh lithium battery, 1800 times flash at full power, AC charge only 3 hours. • Compact and portable: fashionable design and superior performance, with strap, convenient to carry and shooting. • Replaceable battery: the battery can be removed quickly and simply, a backup battery supports continuous shooting. • LED display: simple LED panel, full displays the remaining power and working state, with tips for low power or high temperature. • High speed recycling time: it takes only one second to charge Canon 580EX II flash at maximum power. • Compatible with different camera flashes from Canon though the battery pack cable PB-Cx. Specifications Model Type: PB960 Color: Orange Battery Unit: Lithium battery 11.1V/4500mAh Battery Charging Time: Approx. 3 hours Flash Charging Time: Approx. 1s (at full power) Number of Flashes: Approx. 1800 times (for one Canon 580EX2 at full power) Dimension: 159 x 133.5 x 49.2mm Weight: 540g Package Includes 1 x PB960 Battery Pack 2 x PB-Cx battery pack cable 1 x AC Charge 1 x Shoulder Strap 1 x Instruction Manual