#### Battery Designations: LR6, LR14, Etc. Battery designations like **LR6** and **LR14** are part of the **IEC (International Electrotechnical Commission)** naming system, which provides standardized codes for battery types based on their size, chemistry, and voltage. ##### **Common Designations and Their Meanings** - **L**: Indicates the battery uses an **alkaline electrolyte**. - **R**: Stands for **round cell** (cylindrical shape). - **Number**: Refers to the size of the battery, defined by IEC standards. ##### **Examples** - **LR6**: IEC designation for an **AA alkaline battery**. - **LR03**: IEC designation for an **AAA alkaline battery**. - **LR14**: IEC designation for a **C alkaline battery**. - **LR20**: IEC designation for a **D alkaline battery**. - **6LR61**: IEC designation for a **9V alkaline battery** (consists of six internal cells in series). --- #### Energizer E91 AA Cell The designation **E91** is Energizer's proprietary model number for their **AA-sized alkaline battery**. This naming convention is used to distinguish their specific product from other AA batteries and align with their internal product catalog. ##### Key Details: - **E**: Indicates the Energizer brand. - **91**: Refers to the specific product code for an **AA alkaline battery** in Energizer's catalog. ##### Comparison with Other Standards: - **IEC Code**: **LR6** - **ANSI Code**: **15A** ##### Why Use Proprietary Codes? - Facilitates internal tracking and differentiation of product lines. - Ensures consistency across different regions and markets. - Helps identify specific features (e.g., chemistry, packaging, or intended application). For example, an **E92** refers to an **AAA-sized alkaline battery**, corresponding to **LR03** in IEC and **24A** in ANSI standards.