To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
I have been using these battery holders for all kinds of projects. I use them for cooling fans in costumes, to power lights and sounds for blasters, etc. buying them in numbers helps a lot. Even better are the on/off switches that are part of the battery box. What gets me is when people that don't know what they are doing write reviews on something they do not know anything about. For example, installing LED lights. LED lights have a pos. and neg. if you wire them up wrong, they will not work. These boxes are amazing and easy to use. Hope this review works for customers.