Arguments for this battery compared to the Sony original: - He also works in the NEX-5N and in the accompanying charger. In several of the reviewers here offered genuine Sony batteries (!) There was on this point obviously problems. - The price difference with the original battery is considerable. - The battery is almost indistinguishable from the original also in direct comparison in terms of workmanship and finish (except of course by the inscription: "Patona" instead of "Sony") and fits just as well in the camera and the battery charger.