A disposable, rechargeable battery with a high energy density that has storage longevity. Mostly used in consumer electronics such as remote controls, flashlights, etc.
In an alkaline battery, the anode (negative terminal) is made of zinc powder and the cathode (positive terminal) is composed of manganese dioxide. These batteries use potassium hydroxide (KOH) as an electrolyte (the substance that makes the battery electrically conductive).
Most alkaline batteries are made in cylindrical and button forms with the most popular sizes being AA, AAA, C and D. Some are rechargeable but most are not. If you attempt to recharge a non-rechargeable alkaline battery, it could rupture and leak hazardous liquids.