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.
Note: These are rechargers for the battery only. Not a power adapter. Battery must be removed from the cam to charge. There is a seperate power adapter available to plug the unit in for extended continuous use. That adapter is 2.5 times the price. I did not realise this until too late to return the items