I have the feeling that some comments from people who have not bought the same item! - The charger. I not think it meets the standards. Indeed, the plug for plugging into its adapter is not protected. Result, you can touch the metal part on (yes, yes). I think for that reason alone, this article should be withdrawn from sale. Avoid in any case for women and children. Despite being a man, but fingers are quite thin, and they touch! A light must be indicated by a color change (red - blue) that the battery is charged. I have not had the pleasure of seeing her turn blue. - Batteries I have tried in on a 2. The transition from 100% to 0% was done in the day, with use telephone + Wifi + Bluetooth. The next day, I called a little less. By late evening, the battery was 30%. The next morning, only 1%. In short, 30% loss in 8 hours for a phone by Bluetooth and Wifi standby phone, all with an impeccable level of coverage. To compare, I handed my old battery (18 months). She is still at 40% after 27 h under the same conditions of use. Night waking did not hurt him. Conclusion on batteries: very difficult to imagine that the capacity is higher than that of origin, even used. - Packaging as we must find a positive point to note that the packaging is very beautiful. Beautiful black box with silver text. - Documentation It is not necessarily helpful to have documentation in French. That of this product is in English, German and Chinese. Maybe a little abnormal. Note a surprise for me: the presentation describing the product return procedures described three possibilities, depending on whether you bought at AnkerDirect by Amazon, or otherwise. I never imagined finding a specific reference to the Amazon product documentation. - The following Although the product is worth 20 including shipping, I will now try to return. As I still need to change the battery, I will buy a home.