Seems to work for me. I see reports of people with non working internal batteries. So I'm pretty convinced they are removing them, and the cameras are left sometimes for a good while (ie discharging the internal cell slowly). So more charge/discharge cycles on the internal battery, clearly it will wear out at some point.bakubo wrote: ↑Wed Aug 25, 2021 12:49 amThanks for that tip. Many times over the years I have seen advice to remove the battery from a camera if you don't use it for a long time. My Olympus E-M10 hasn't been used for a couple of years so I long ago removed the battery. My Olympus E-M5 has not been used for even longer so I long ago removed the battery also. And I removed the battery in my Canon S95 a couple of years ago too. I removed the battery in my Olympus PEN-F about a year ago. I will put the batteries back in and fingers crossed all is okay.bfitzgerald wrote: ↑Tue Aug 24, 2021 10:19 pm Both internal batteries on the 5d are still working, "tip" leave a battery in the camera which is what I have done. Then the internal cell doesn't discharge/charge aka wearing it out. These are old cameras now. Do the same for all the cameras I have - just once in a while charge up the battery if stored
None of the bodies I have which I have left the batteries in have failed internal cells. I think it works
The 5d's are from 2006 both still hold the date/time. The SLT's some of those can have some parasitic drain, so I keep an old third party one in there and just give it a charge once in a while. I've not seen the DSLR's I have used have internal drain, perhaps some do. I bet the main battery will hold the time/date and it doesn't even look at the small internal one...if the bigger one is in there. That's what I've found anyway