Duracell is the reference battery, and yet in my use Duracell emerged as expensive, and above all a very very random quality, I often found myself with complete packages that were charged to see half completely empty .. . Moreover Duracell fool expensive ... One day I tried the GP, and believe me since I did not was disappointed. What is certain is that the quality of the former GP was already higher at Duracell, but the new GP Green, yet gain some autonomy, a temperature sensor I spent 6 months with the GP of 8 months old generation to the new generations against 3 months with the Duracell Ultra Life ... And they come in a small case / box for storing the batteries and prevent them scatter, certainly in more box empties more they lie down in the box, but hey, you can not have a box has individual location! In short a great value for a price well below that of Duracell, I highly recommend! Delivery: RAS Packing: SAR.