So at the beginning of summer, I purchased this stirrer. It worked great until about 3 weeks ago and then just stopped. I figure I just got a janky unit so I decided to order another one. Just received it today. I tried the batteries that it came with - no go. I then grabbed 4 batteries that I had that are brand new - again - no go. Anyone else have such trouble? From the posts on TFP, it seems like it is a really popular choice but not so sure after my first one broke within 3 months and the second one ordered does seem to work. Not sure if I should order a 3rd or if there is a different one people would recommend.