If you're planning on a long day (or night!) of shooting with your flashgun - be it an Interfit Strobies One Eighty or another brand - then you might want to pack one of these. The 4500mAh battery is capable of powering up to 900 full-power flashes of a 180W/s lamp and recycling in 0.5 to 2.2 seconds, the ProFlash battery pack is a solid investment and a solid piece of kit. Connecting cables are available separately for Canon, Metz, Sony and Nikon flashguns, as well as the Interfit Strobie One Eighty.
Bargain Deal: £119.99