I have a cannon power shot A580, about one month old and it keeps asking for the date and time everytime i switch it on, even though i have replaced the date battery and the camera batteries, and set the date and time in the menu time and time again!!! HELP

On this camera you have a supplemental litte battery that is just beside the AA batteries. If you pull on the little tab that says CR 1220 you will find a battery that looks like a battery watch. Just replace it, go back into your date/time settings and you should be good to go! It worked for me!

This model isn't all that old but I suspect the internal "button" type watch battery has gone dead. This little battery is what keeps the date/time going when the camera is shut off and "normally" last upwards to five years from date of manufacture not date of purchase.

hi, there's a capacitor on the main pcb that you need to change just to save the time and date even you turning off your camera. bring to service center and maybe the service charge is cheap.

thank you

Best bet is to start by replacing the battery. At 8 months it'll be due for one soon anyway and a new battery may "reboot" it so it runs again. As a battery wears out it doesn't just stop, it may still maintain the display even though it stops keeping time. Also, new "e-ink" displays require no power to maintain the display 0 only to change it.

have you check the settings for time and date have you saved it? You can also try to remove the cam battry for 2 mins. then put it back in then turn on the camera and then after few secs. turn it off, then see if the issue persist.

This function only works in "postcard" resolution. Press function button, and select postcard (1600 pixel width) resolution.

According to Canon, the backup memory lithium battery (interal) recharges off the main AA batts that you put in... the manual says it takes about 4 hours to charge this battery.
When not in use, leave the AA batts in the camera .. see if this helps keep the date/time memory!
K

1. With power off, press the MODE button to select the DATE mode.
2. Press the zoom out (three trees) button for more than two seconds to enter the date/time set mode.
3. Press the zoom out (three trees) button to select year, month, day, hour, or minute (selected number will flash).
4. Use the zoom in (one tree) button to advance the number.
5. Repeat steps 3. and 4. to set each value.
6. Press the zoom out (three trees) button until the colon (in the hours:minutes) is flashing. When the colon stops flashing, date and time setting is completed.
7. Press the MODE button and the power will switch off.

No need to remove part of the camera case. This camera (Power Shot A510) does have a backup battery that is easy to get to. Under the rubber flap where you connect the cable, there's a little door you can pull out with your fingernail. There is a CR1220 battery - can be found at any jewelry store, as it is a watch battery. I replaced that and viola! No more messing with the date/time every time it powers off/on!

There is not an option to remember the date/time when you power off the camera. The camera should always remember the time. If it forgets the setting when you power it off then your backup battery has gone dead. Check your manual to see if it is something you can replace yourself. I am not familiar with this camera specifically but some cameras make the backup battery accessible and some require disassembly. David Millier Advance Camera Repair