To Users of Canon Speedlite and Macrolite Products and Accessories

To Users of Canon Speedlite and Macrolite Products and Accessories 

Notification Regarding Use of (AA/R6) Lithium Batteries.

Thank you for using Canon products. 

Details

AA/R6 Lithium batteries cannot be used with any Speedlite or Macrolite products and compact battery packs including those listed below because certain AA/R6 lithium batteries, in rare cases, may become extremely hot during usage in such products. 

Canon Products

Speedlite 220EX

Speedlite 270EX

Speedlite 270EX II

Speedlite 380EX

Speedlite 420EX

Speedlite 430EX

Speedlite 430EX II

Speedlite 540EZ

Speedlite 550EX

Speedlite 580EX

Speedlite 580EX II

Speedlite 600EX

Speedlite 600EX-RT

Macro Ring Lite MR-14EX

Macro Ring Lite MR-14EX II

Macro Twin Lite MT-24EX

Compact Battery Pack CP-E2

Compact Battery Pack CP-E3

Compact Battery Pack CP-E4 

Contact Information for Inquiries

For information on this matter, please contact your nearest Canon Customer Service Centre.