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.
This item is a substitute for 2 of the normal, rechargeable battery packs. In other words, it won't fit in my camera where the normal, single battery pack does. It will only work with the MB-D80 multi-power battery pack. I'm disappointed that I couldn't figure this out on my own before purchasing this item. Looks like a well made item and would have received 5 stars if there was a better description/product images available.