The external JJC Flash Compact Battery Pack FB-1(II) improves flash recycle times significantly and increases the number of firings before batteries need to be replaced. The pack can be loaded with 8 AA-size batteries - alkaline， lithium， or Ni-MH - prior to a shoot to ensure fast and smooth transitions from one battery set to the next - important in critical shooting situations or to keep up momentum in the studio. Total minimum flash recycling time can be as fast as 1seconds when used with AA Ni-MH batteries

Specification:

JJC FB-1(II) replaces CANON CP-E4.

Compatibility:

For Canon Speedlite (600 EX RT， 580EX II， 580EX， 550EX)， Macro Ring Lite MR-14EX and Macro Twin Lite MT-24EX，

For Yongnuo 560 III IV EX-RT Flashes

Package:

1*Battery Pack， batteries and flash not included

 

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