This serves as an optional replacement or backup battery magazine for the Compact Battery Pack CP-E4.
Holds 8 AA-size batteries (alkaline, lithium, or Ni-MH)
Reviewed by 4 customers
for fast change Events
For quick change on beauty contest
Quality Canon equipment
My 580 EX/2 flash unit handles four batteries inside, the power unit allows me another eight batteries and this quick reloading unit gives me an additional eight batteries. Total of 20 rechargeable batteries that will allow me to take as many flash photos as I want with my Canon 30D without concerns. It doesn't get any better.