I have a battery problem with my two year old Canon A720 IS. In the passed it just barely accepted rechargeable batteries (2 x 1.3V), but it had no problems with alkaline batteries (2 x 1.5V). Now it does not even accept new alkaline batteries anymore. A lot of people are having the same problem. How much voltage does the camera want, must this voltage go up every year? What is wrong with my camera? I cleaned the contacts, the door is okay. The CR1220 battery reads 3 volt.

SOURCE: Canon S2IS " change the batteries" problem

This worked for me after having the persistent "Replace the batteries" problem for about a year straight.

1. Reset the camera, according to the instructions in the manual. (Power on, hold MENU for 5+ seconds, select “OK”, wait, turn camera off).
2. Remove the date/time battery for two minutes (the tiny one in the battery compartment in its own little plastic holder). Replace after 2+ minutes.
3. Important: Insert freshly charged batteries into the camera.

I tried everything short of getting a new camera, and this was the ONLY thing to work for me. Its also simple enough that it takes 3 minutes to do, in case it were to ever happen again while on vacation, etc.

Good luck and I hope this helps.
Eric

CameraR

• 4738 Answers
• Posted on May 25, 2009

SOURCE: Canon A720 IS does not turn on

Here are some simple things to try first for a camera that won't power on. They won't work for every case, but they're worth a try. You can skip the battery comments and focus on the other suggestions in the article:

http://camerarepair.blogspot.com/2007/11/simple-fix-for-dead-cameras-that-wont.html

SOURCE: Canon PowerShot A630 power problem: NiMH batteries no longer work

I dont agree, I have tried several different batterie types and the batteries are draining almost instantly with the camera and they are not actually being drained. I think the camera itself is at the end of its life...as I have used rechargeable batteries for the last few years and now they wont even show as being charged on the camera. It stinks Im in your same spot now...no batteries are lasting even the brand new lithium ones...it has nothing to do with the battery "juice" but something with the canon supply power not recognizing/recieving the juice. Im not a canon expert, but I think the problem is more than the battery here Steve and im confused at the solution as well.

SOURCE: Canon A720IS flash problem/low battery indicator

cudgegong said in another forum:

To resolve the annoying "change the batteries" problem. Goto menu, choose yellow menu, select
file No. reset to ON. Turn camera off and back on.

Voila fixed.

SOURCE: hat's the use of maxell CR1220 3v battery near the A/V port?

Memory