Ideal backup power for PIC micro

[emavil]

thats cool, can you share to me the schematic of your circuit? only the one that is powered by these batteries. I have a simple digital clock (HH:MM:SS) which i would like to run 24x7 with or without power from the mains supply. I'm using a standard wallwart adaptor as my power source. When mains supply is cut off, the next time i power on i have to set the time again.

[skimask]

thats cool, can you share to me the schematic of your circuit? only the one that is powered by these batteries. I have a simple digital clock (HH:MM:SS) which i would like to run 24x7 with or without power from the mains supply. I'm using a standard wallwart adaptor as my power source. When mains supply is cut off, the next time i power on i have to set the time again.

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