The WB100 Lithium Battery Pack for the Flashpoint XPLOR100 Pro and Godox AD100pro is the rechargeable Lithium-Ion polymer power cell with stamina on its mind. The newly designed 7.2V, 2600mAh, 18.72Wh, Li-ion Battery is comprised of two 18650 cells, with a proven track record for performance, reliability, and longevity. The packs can be recharged in about 3.5 hours using the VC-26 USB Charger. With an estimated 480 full power shots inside, the power of an external battery pack INSIDE your flash. It can also be used for the Zoom Li-on X and Zoom Li-on III Speedlights. An extra battery is always a good idea, even if it is likely to never die on you. This cell delivers 480 full power shots on a single charge, Go ahead. Shoot harder, faster, stronger, longer. There is plenty of flash reserve in this gem. The XPLOR100 Pro is the smallest and most portable remote monolight style flash of the Flashpoint R2 radio system, totally compatible with the Canon, Nikon, Sony, Olympus, Fujifilm, Panasonic, and Pentax systems, for wireless power control and shooting. With a focus on portable lighting, the R2 Family frees your camera to go out and shoot at will - whether you are a wedding or event photographer, environmental portraiture shooter, freelance commercial illustrator, photojournalist, backpack adventurer, or fast action sports snapper.