It has a battery power bar, and all the bars are there, so it should be working well. However, I decided to put my scale to the test this morning and determined I need a new one. According to it I gained 1.1 lbs since yesterday when I got weighed earlier in the day today, I weigh slightly less with my shoes on than my shoes off, my dog who has been consistently 10.5 lbs has lost 0.9 lbs, even though her hair is especially long, and my mother who looks great and has been dieting has gained 5 lbs in a short amount of time. The shoes on weighing less is especially odd. I'll get a new scale and keep you all posted.