08-02-2017 03:17 PM
Thank you for posting.
I believe the best option for you is to contact us. For contact options, please use this URL: http://Canon.us/ContactCF
12-28-2017 11:50 AM
I own an EOS Rebel T5i. It did not take long before it told me "Replace Battery Pack".
I ordered two replacement batteries, and a double-battery pack to mount under the camera body. Same issue.
Cleaned all contacts, without success.
placed the batteries in an EOS T3 and they worked without any problems.
I am now leery on ordering the T6, as I am afraid that the issue might be with these series of Canon brands.
This issue is intermittent, though. Sometimes, I will not get an error message, but it makes my camera unreliable (ie: wedding photo shoots) as I do not know when it will let me down.
03-30-2018 11:03 AM
Just acquired a T6 for a price I could not refuse. Placed the battery pack I normally use on the T5i - and Bingo! It works flawlessly. Returned the battery pack to the malfunctioning T5i, and it turned on without a hitch! I think that the "Jealousy Module" might have been defective!
09-22-2019 01:54 PM
I've had that problem with several Canon and non-Canon cameras. My current one is a Canon A-620, and just found a workable solution here.
06-29-2020 05:04 PM
ha ha! Yes the jealousy module was activated!
Another possibility is the battery door is not closing tightly enough to make a good battery contact or the battery contacts are dirty/damaged.in the camera or on the battery.