Panasonic Evolta Alkaline D size batteries in a pack of 2. The Panasonic Evolta Alkaline range is the leading range of Panasonic alkaline batteries. The Panasonic Evolta D size alkaline battery is the largest of the four popular cylindrical batteries we use day to day. The D cell is also known as an LR20 MN1300, part number LR20EGE/2BP. Theres are 12 packs of 2 batteries in each box.