User Activity

Using a etreme 111 8gb class 6 memory card some battery problems .Should I be using a better card if so what card.  Thanks
canon sx 280  does not beep twice when the shutter button is pressed half way after focusing.   can anyone tell me why or how to correct.     thanks
Can anyone give me any info on my canon sx280 battery problem. The serial number from the left 6 over is 3