I get a reading that tells me Cannot communicate with battery. 7D owners, I hope this fixes your problem, don't waste your time resetting the camera, putting it in the freezer, polishing battery contacts, but if that fixes your camera good, otherwise, it's probably caused by a loose fastener (screw) inside. ! I recently saw a Canon 7D and 60D operate at temperatures of 19 and 20F without any problems. I think there is some type of design flaw that when the camera is subjected to an extreme temperature change something in the battery compartment is expanding or shrinking and preventing one of the pins that communicate with the chip on the battery that tells it is a genuine canon battery. Can anyone help. When Canon got my camera body, they claim it was working just fine, so they say they did no repairs of any sort. I have also seen them both operate fine above 113F without any apparent problems. The camera was used to shoot sports at Jesuit High School and used a lot, but very well cared for… I couldn’t believe that the cameras shutter actuation count was 256,868!! I've had the 2.03 firmware since early Sept 2013 though. apparantly my battery is not registered to my camera. I've read several forums with solutions from send it to Canon for repair ($205) to freezing the camera for 6 minutes and then placing a warm battery in the camera (not going to even try that one). Canon 7D Testimony Recently, we had a customer bring in a 7D for a standard sensor cleaning. swapped battery with newly charged one, and still no power. Here is how I fixed my Canon 7D. This problem just started with my 7D. My 7d crapped out during a night sky shot in 38 degree (Fahrenheit). After you remove the first battery, its right there near the hinge of the battery door. This happens with both batteries and never happened before. Didn't help in the least for me to remove that battery and do a reset, unfortunately. Same as above, I use a grip with 2 real Canon batteries, never had a problem with the 1.25 firmware. I have two Canon batteries and it's the same on both. This still doesn't explain why this new battery seems to have triggered the problem on the 7D, and why all 3 batteries were affected. Called Canon, who suggested removing the date/time battery and then putting it back. Cancel or OK". Nothing out of the ordinary until a few hours ago. I think there is some type of design flaw that when the camera is subjected to an extreme temperature change something in the battery compartment is expanding or shrinking and preventing one of the pins that communicate with the chip on the battery that tells it is a genuine canon battery. This summer suddenly i got the message telling me that the camera can't communicate with the left battery. I have a 7D with 2 Canon LP-E6 batteries - couple weeks ago i got "cannot communicate with battery" errors with both batteries - reseated the batteries a few times and everything started working again until this morning. I dodn't know if the original 2 batteries were 3rd party made to look like Canon, or if the date stamp was a new addition later in production. Well this has hit my 7D out of nowhere. Turn the camera on, "Cannot Communicate w/ Battery - Use This Batter? I turned it on this morning and the LCD said "Cannot communicate with battery Continue to use this battery? ... Canon EOS 7D Canon EF-S 10-22mm F3.5-4.5 USM Canon EF-S 17-55mm f/2.8 IS USM Canon EF 100-400mm f/4.5-5.6L IS USM +2 more. It's right inside the normal battery compartment. Well, i use an eos 60D, which had the same problem as the 7D.The problem was not from the camera, or batteries (I use an original canon battery and a replica made for 60D). I have personally experienced the “can’t communicate with battery” message when using a genuine Canon battery (the one that came with the 7D).
2020 canon 7d cannot communicate with battery