Instruction: Generate an answer to the question by utilizing the information contained in the document.

Input:
Question: What size battery does this use?
Document: Easy to read, easy to use! Love it and so do my kids. We are all on a  great start to a new healthy lifestyle
Very good scales would buy them again. Easy to set up and use. Best scales I have bought. Would recommended them good product.
I just bought this scale, and I love it. I do not use any of the "advanced" features, I really just care for my weight.Our old scale was still OK, but had gotten a little grimy in the humid environment of the bathroom and being close to the floor in a household with cats.
I bought this at Bed, Bath, and Beyond with my wife. I was skeptical because of the Biggest Loser name being on it. They have to pay for that name to be on it and it was on the lower price end at that store. I like the wide width and the look of it so we bought it. Got home it worked fine.After 4 weeks of use the LCD display messed up. So now it is useless.Until it the display messed up I was happy with it.
* I am not sure how accurate it is because I can weigh three times in a row and get 3 different numbers that are within a 3-4lb range. That makes a big difference to those counting! It wasn't like this when I first bought it - it's been getting worse with age. * I don't use the functions of memory and BMI because I've got a phone app that does it for me, therefore it's a product feature that makes the price go up and I don't use it.
Now the scale works great! Make sure you have a fresh battery or the scale will give you strange and intermittent readings.
If I had to do over again I'd buy the best spring scale. I forget about the battery. I'd buy one that was manufactured in America.
I can't remember when we bought this this, but it had a warranty and we stupidly threw the box away because the thing worked...for a while. Maybe 2 years. I loved it.One morning, I got on it (like I did every morning) and it told me I had gained nearly 300 lbs. This was shortly after replacing the battery. Tried resetting and now it's consistently off by 35 lbs. or more.
Everything is fine. Scale looks sleek and new age sitting in the bathroom. Then it needs to have the battery changed. That was a decision made initially. I don't like to have all these things that require batteries. I like the idea of things that run/work all by themselves. But I decided to go sleek/new age/ with battery. However this is not like changing a flashlight or camera battery.
I had this scale for 18 months and the battery finally went dead. Replaced the battery and recalibrated according to the instructions. The scale auto shut off feature refused to work since. It went into a continuous cycle of the display showing "8888" and "00" without ever shutting off. JunkUpdate! It turns out that the previous problem that I had with this scale(as described) was with the battery(it was bad) and not the scale itself.
Answer: CR2032 flat type of battery