Alkaline batteries are manganese dioxide as cathode, zinc as the anode, potassium hydroxide as the electrolyte. Its characteristics less carbon-zinc battery excellent, electricity capacity, in order to Jinding alkaline battery, for example, the average than the carbon-zinc battery power more than 5 times (in multiples of the power will vary due to electrical products), preservation of good, leak-resistant fluid nature of good, good temperature resistance, voltage change is small, available and stable voltage, high current can still be high-efficiency Dell Inspiron E1705 battery discharge, so the size of current devices are suitable for use.