Yongnuo Flash Battery Pack SF 18 SF-18C SF18C for Canon

Note: If you want to use This Battery Pack for Yongnuo Flash, please select the Canon Verion. The YN-568ex don't support Battery Pack.    Compatible with following flash:  Nikon flash: SB-11, SB-20, SB-22, SB-24, SB-25, SB-26, SB-27, SB-28/28DX, SB-80DX, SD800 Canon flash: 580EX II, 580EX, 550EX, MR-14EX, MT-24EX, Yongnuo Flash(not include YN-568Ex Canon/ Nikon and YN-568ex II Canon) Sony flash: HVL-F56AM Quick Overview: This external flash battery pack is an external power source for the Canon Speedlight. This Battery Pack can hold 8 AA-type batteries, ensuring a stable power supply for the speedlite, greatly increasing the number of flashes, and reducing recycling time.   Features: Protective Case: Protective soft case can be worn on belt or put in a bag; light and easy to carry. The one-way connector plug is designed to avoid mis-connections which can lead to flash unit damage. 1/4'' Thread Screw: Standard thread for tripod mount. Performance: The Pack reduces recycling time to less than half of a normal cycle and can give up to double the amount of flashes as the original ( a ). It is suitable for continuous flash use ( b ). Convenience: The Pack uses 8 AA batteries (same batteries as flash) and with different connecting plugs, supports most Canon flashes to greatly increase flash capacity. It's ideal for the professional. Product dimensions: 69mm(w)x158mm(h)x25mm(d)  Net weight: 170g Operating Temperature range: 0oC-40oC   Package Includes: 1 x External Flash Battery Pack (batteries not included), 1 x padded protective case,  1 x 1/4 inch screw adaptor & English and Chinese instructions.   Note: a, Depending on state of battery charge; b, Maximum of 15 consecutive shots without break or risk of overheating