CP-E4 battery pack and 600ex-RT

Registered: Jun 10, 2003
Total Posts: 4104
Country: United States

does anyone know if the CP-E4 battery pack is compatible with the new 600exRTs?
I cant find any info on it

Registered: Mar 17, 2009
Total Posts: 854
Country: United States

doesnt appear that it is.

Registered: Aug 16, 2011
Total Posts: 237
Country: United States

i hadn't checked the specs, but i have hooked up a CP-E4 to my 600EX-RT and it worked fine.

From Canon's product page (Specs) for the 600EX-RT (http://www.usa.canon.com/cusa/consumer/products/cameras/speedlite_flash_lineup/speedlite_600ex_rt#Specifications)
External Power Source
Compact Battery Pack CP-E4

well, OK, i just NOW checked the specs

Registered: Mar 31, 2011
Total Posts: 88
Country: United States

Just to confirm the above: YES, the CP-E4 definitely works with the 600EX-RT. Very well.