Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Broken out of the box

I purchased this feeder after being unsatisfied with the Bistro feeder giving inaccurate amounts of food. Unfortunately, when I hooked a brand new 9V battery up to this feeder the power light would not turn on. After some adjustment of the leads I could get the power light to flash a bit, but it was still not enough for it to actually turn the feeder. Maybe I got a dud, but it sounds like I am not the only one. Why is it so hard to make a reliable automated cat feeder?