Product Review

-- Only take one second to charge Canon flashes (such as Canon 580EX II, 580EX, 430EZ, 540EZ, 550EX,Nikon SB900 ,Sony HVL-F58AM, Olympus FL-50R and other flash model with same type of input power port) at the maximum power;
-- 900 times of flashes in full brightness is supported, which greatly improves your shooting efficiency and reduces working time.
-- Versatile compatibility, so that you can charge flashes and other products of different brands simply by replacing the plug-in connector cable.
-- Perfect for press, sports and fashion photographers.
-- With its high performance flash power source, it delivers instant flash recycle times on your flash speedlite.
-- Light weight, compact and durable build
-- LED lights indicating working status and power left.
-- A multifunctional socket for power output and battery charging

Specifications:
Lithium battery :11.1V / 2000mAH
Battery Charging Time: about 2 hours with AC charger;5 hours with car charger
Flash Charging Time:about 1 second(full power)
Full power flashed:about 900 times
Demension:5.9*3.9*1.7inches
Weight:18oz

Package Includes:
1x Battery Pack with Belt Clip
1x US Charger
1x Car Charger
1x Shoulder Strap

Please Note:
If this product is used for a flash, the flash shall have built-in batteries with sufficient power.
This product is not water resistant. Please keep it away from rain, snow or humidity.