What is the difference between carbon-zinc and alkaline batteries?
The term Super Heavy Duty (SHD) refers to the zinc chloride carbon zinc (CZn) chemical system which has largely replaced the LeClanché CZn “General Purpose” chemical system. Alkaline batteries are very similar to carbon-zinc, but are alkaline manganese dioxide chemistry, and contain about twice the power of a comparably sized carbon-zinc. Carbon-zinc batteries are best suited for low drain applications such as clocks and simple smoke alarms or short intermittency devices such as remote controls. Alkaline batteries are more suited to higher drain uses, like in toys, CD players, etc.
