Biggest Loser Scale..HELP!!

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So this morning i went to use the scale to weigh my food for the day and it just kept blinking!! i am hoping it is not broken and that i just need a new battery. does anyone have this scale? did this every happen to anyone?? Do i need a new battery or a new scale?? Also, where would i get a small battery like that?? Please help ASAP bc i am addicted to my scale!