The Panasonic Eneloop are obviously the newest generation of Eneloops after the acquisition of Sanyo battery production by Panasonic. The delivery took place within less than a week, so still ok. The build quality is the same as Sanyo - so as usual very good. New batteries get with me always a Formierungs charging cycle (refresh the BC 900). After passing the capacity of each battery is shown. All 4 batteries on the nominal capacity of 1900 mAh. My oldest Sanyo Eneloop are since 26.03.2010, at a weekly charge, still without any appreciable reduction in capacity, in use. Whether the Panasonic Eneloops maintain this high standard, or will exceed time will tell. Unique buy recommendation for use in radio, digital camera, GPS, people Wage and flashlight. Particularly suitable for devices that require a constant high voltage throughout the entire Entladeverlauf or are very rarely used.