Service Notice: Caution Concerning use of Lithium Batteries
Update
Thank you for using Canon products. The products list and advisory details on this page were updated on April 28, 2026..
Products
The affected Speedlites/Macro Ring Lites/Macro Twin Lights and the battery packs are as follows.:
Compact Battery Pack CP-E2
Compact Battery Pack CP-E3
Compact Battery Pack CP-E4
Compact Battery Pack CP-E4N
Macro Ring Lite MR-14EX
Macro Ring Lite MR-14EX II
Macro Twin Lite MT-24EX
Macro Twin Lite MT-26EX-RT
Speedlite 90EX
Speedlite 220EX
Speedlite 270EX
Speedlite 270EX II
Speedlite 320EX
Speedlite 380EX
Speedlite 420EX
Speedlite 430EX
Speedlite 430EX II
Speedlite 430EX-III
Speedlite 430EX-III-RT
Speedlite 470EX-AI
Speedlite 540EZ
Speedlite 550EX
Speedlite 580EX
Speedlite 580EX II
Speedlite 600EX
Speedlite 600EX-II-RT
Speedlite 600EX-RT
Speedlite EL-10
Speedlite EL-100
Details
Please note that lithium batteries and lithium-ion batteries cannot be used with the Speedlites/Macro Ring Lites/Macro Twin Lights, and compact battery packs in general. Please be aware that using certain lithium and lithium-ion batteries will result in an extremely high temperature of the battery.
Support
This information is for residents of the United States and Puerto Rico only. If you do not reside in the USA or Puerto Rico, please contact the Canon Customer Support Center in your region.
Thank you,
Customer Support Operations
Canon U.S.A., Inc
Contact Information for Inquiries
Canon Customer Support Center
Phone: 1-800-OK-CANON
1-800-652-2666
TDD: 1-866-251-3752
Email: carecenter@cits.canon.com
Support options and hours of operation: www.usa.canon.com/support
Thanks for signing up!
The application has encountered an unknown error. Please try again in a few minutes!
By clicking Sign Up, you are opting to receive promotional, educational, e-commerce and product registration emails from Canon USA. You can update your preferences or unsubscribe at anytime.