http://digitalcameravideocamera.com/canon-camera-batteries/
Why does my camera (Canon Powershot A550) keep telling me I need to change the batteries?
I tried new batteries and still the message that I need to change the batteries, then it turns itself … any ideas?
check if you use NiMH (nickel-cadmium) Rechargeable. those who hold a memory effect and can reduce the level of tension, even at full load.
canon camera batteries
7.4V 700mAh Camera Battery for Canon HDVixia HF10 HF100 from Dinodirect.com