This GODOX PB960 Power Pack, as a professional power supply product, is designed to charge speedlites with external power input ports, including on-camera flashes such as the Nikon SB900/SB910 (also some Canon speedlights)
With the GODOX PB960 power pack it takes only one second to charge a Nikon SB900/SB910 at maximum power.
With the MCU circuit design, this product integrates software protection and hardware protection and adopts heat-resistant nylon plastics, ensuring higher safety and reliability.
Enormous Power: 4000mAh Large-capacity lithium battery, up to 1800 flashes per charge at full power for the Nikon SB900/SB910
Quick Recycling: With the PB960 it takes only 1second to charge Nikon SB900/SB910. Only 3 hours' charging time is needed.
Dual Output:Separately powering two flashes at the same time without reducing recycling speed
Interchangeable Battery:Provides more flashes with spare batteries.
LED Power Capacity Indicator: Press the button and you can clearly see the power capacity with the 4 led light (eg: 4 lights-Full; 1 light-Low)
Battery: Lithium battery 11.1V/4000mAh
Charging Time: Approx. 3 hours
Cycling Time: Within 1s (at full power)
Number of flashes: Approx.1800 times (for one NikonSB900/SB910 at full power)