Alkaline batteries outperform zinc-carbon batteries in every category typically, except the initial price. But now you can get high-quality long-lasting alkaline batteries at less than you'd expect to pay for ordinary batteries! Plus they offer more power at higher rates of demand and can withstand lower temperatures better. Alkaline batteries have a higher energy density, can last up to 9 times longer and have a longer shelf life with the same voltage. They're great for toys, CD players, flashlights, digital cameras, radios, lights, MP3 players and much more. 20 piece C/D/9V combo pack (8 'D', 8 'C' & 4 '9V') for just a few cents each. Brand name may vary.