Non-rechargeable batteries, also known as primary batteries, are designed for single-use and cannot be recharged once depleted. They are commonly found in everyday devices like remote controls, flashlights, and toys. These batteries provide a steady voltage until they run out of energy, after which they must be disposed of and replaced. Examples of non-rechargeable batteries include AA, AAA, C, and 9V batteries. They are typically made from materials like alkaline or lithium, which offer good energy density and shelf life. However, their environmental impact is a concern, as they contribute to electronic waste when discarded.