Bests & Worsts Reviews from Amazon

This is a pretty simple but effective little product. It does exactly as it's supposed to do, telling you if your batter is good, low, or needs to be replaced. It works with all kinds of regular household batteries. I can already tell Im going to save money because many times when my smoke alarm is beeping or I think other things aren't working correctly because of the battery being dead so I throw it out and replace it, with this battery tester Ive already saved myself from throwing out several batteries just by testing them first to see if the battery is the issue and it turns out it isn't. For the price this is a household must have and I am very happy I purchased this.