Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: Why do the batteries go bad so quickly?
Document: These Dummy Cameras look very realistic. When I installed them at the house and put the batteries in them, they look fantastic. You will not be disappointed with these. The bad guy has to think to himself when he sees this camera, "do I take the chance that it's not real"? I think the smart criminal would rather go to the next house that doesn't have a camera on it.
I got one for him, he said that the undesirables don't walk past his house anymore and don't even park where they think the camera can see. Thieves aren't smart, they go for the easy score, that big flashing light is a universal sign that a live camera is recording and bad guys don't like to be recorded.I read a few reviews that said it doesn't look real because of that light, that's bull!
I wasn't expecting too much as it did not cost much but I did hook it up quickly and put in the batteries and it blinks a red light constantly and looks like the real deal. I liked it so much that I bought another one and put it in another area of that overlooks the side door to my door garage.
This fake security camera is very lightweight, seems well-constructed, and definitely looks like a real surveillance camera if you don't get too close to it. The blinking red light is powered by two AA batteries, is visible from across the street, and adds to the camera's realistic appearance. I have no way of knowing how long the batteries will last; hopefully, they will not drain too quickly, for if they do, it would be a nuisance to keep changing them too often.
I ordered two of these camera's and they were delivered today! I got them very quickly! As my review title states, they are the BEST looking security camera's I've found anywhere. I have been looking for a few months so I can place them on my front and back porches to deter crime from happening around my house. As many people have discovered, many REAL security camera's have no flashing red light on them, so I'm going to save my batteries and keep it "quiet".
I installed new batteries but it did not make any difference. I just assumed I have a bad item. So, it was not worth return it I just purchased a new one and it is working fine.
I love these bad boys! All my friends and family think its the real thing! I would recomend buying some rechargable batteries as they use up bat life within 1 month or so.
Had a package stolen off our front door so we installed a couple of these fake cameras. Flashing lights look real at night and the batteries last for ever. No more bad guys! Even the neighbors think they are real. Best deterrent you can buy for $10
For the price these are not bad units. They look a littly cheezy but, It would make me think twice. Batteries don't last as long as I'd like for only powering a LED light,  Maybe 2 months+. Light just starts getting dimmer as it dies.
Easy to install and will probably scare some of the juvenile hoodlums away. Upon closer inspection, it doesn't look real. All of the real CCTVs that I have been looking at for the past two weeks have two wires (power and signal). This only has one wire. Also, the red blinking light is silly, so don't bother putting batteries in it. Overall, for the price, not a bad investment.
Answer: I assume that the light pulls to much power and drains the batteries, I bought 7 of these & they all drained the batteries within 2 weeks