5ds R date/time resetting when battery swapped

[magyarw]

I just had my 5ds R serviced by canon for an unrelated issue. Since getting the camera back, every time I switch batteries, the camera resets the date and time. It also seems to resets to different dates/ times. Sometimes it's 1999/01/01 and today it reset to 2015/01/01. Also, the date and time stamp for each image are not in sequential order so when I look through downloaded images on my computer they are not in the order they were taken in.  

I am aware that leaving the battery out of the camera for a few minutes can reset the date and time but I am swapping for a fresh battery immediately so a battery is only out of the camera for a few seconds.   It's my understanding that these cameras don't have a separate battery for the date/time so I am unsure of how to fix this problem. I've had this camera for a few years and never had this happen before. I know that canon updated the firmware when the camera was serviced, could that have something to do with it?

Any help would be appreciated.

[Waddizzle]

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@BurnUnit wrote:

Well maybe the process has changed over the years but checking the manual for my 60D it seems to indicate a few steps the owner must perform to register a battery to the camera. There's no mention of the 60D, at least, doing this automatically.

[deleted images]

But it also appears that Canon assigns a unique serial number to each battery when it's manufactured. Though the camera does track the date of last usage for each battery. It just doesn't say if it stores this date info in the camera, on a chip in the battery, or both. And in your case it sounds like it might not make a difference either way.

The last page above shows a procedure to delete the registered battery information. Maybe try this if your camera allows you to and see what happens. If nothing else it may give you some more information to share with the Canon techs.

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I guess that did not come out right.  I should have used "detest", instead of "register.  When you install a new battery, the camera detects the new battery.  With Canon batteries, a serial number will be detected and read.  With third party batteries, I think the current date is used in place of a serial number.  All that the battery registration procedure does is store the serial numbers in the camera's internal memory.

[fyosores]

I'm experiencing the same problem with my 1DX as the original post. It's an old camera so your explanation is very likely. I'm glad the capacitor can be replaced. May I ask if you replaced this yourself or did you have it serviced? Did it require soldering?