The exterior JJC Flash Compact Battery Pack FB-1(II) improves flash recycle times dramatically and increases the number of shootings prior to batteries need to be changed.
The pack can be loaded with 8 AA-size batteries - alkaline, lithium, or Ni-MH
Total minimum flash recycling time can be as fast as 1seconds when used with AA Ni-MH batteries. JJC FB-1(II) replaces CANON CP-E4.
Compatible with: Canon 600EX-RT, YONGNUO YN-560III, 580 EX II, 580 EX, 550 EX, MR-14EX, MT-24EX.
One (1) External Flash Battery Pack (batteries not included),
One (1) Carrying case