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Energizer AA Battery

Energizer AA Battery are available in two primary chemistries for medical applications. Alkaline AA (model X91, E91) provides a nominal 1.5V output, 23g weight, 150-300 milliohm internal resistance, and 7-year shelf life, with zero added mercury. Ultimate Lithium AA (model L91) provides 1.5V output, 15g weight, operates from -40°C to 60°C, offers 3000 mAh capacity, 2.5A continuous discharge, and 25-year shelf life. Both are manufactured under ANSI and IEC standards (ANSI-15A, IEC-LR6 for alkaline; ANSI-15-LF, IEC-FR6 for lithium). For clinicians, alkaline AA is recommended for Medtronic insulin pumps; lithium AA is indicated for high-drain, extreme-temperature, or long-storage applications. Contains zero added mercury or cadmium. Ingestion requires immediate medical attention (800-498-8666).

Energizer Lithium AA Battery

Energizer Lithium AA Battery is a high-performance, lithium-iron disulfide (Li/FeS₂) primary battery designed for medical devices requiring long life, extreme temperature tolerance, and high-drain capability. Key specifications: ANSI 15-LF, IEC-FR14505 (FR6) designation; 1.5V nominal voltage; 3000-3600 mAh capacity; 2.5A continuous / 4.0A pulse discharge; 15g weight; -40°C to 60°C operating range; and 25-year shelf life at 21°C. Features ATEX intrinsically safe certification (Ex ia IIC Ga) for use in explosive atmospheres, including oxygen-rich medical environments. Contains less than 1 gram of lithium per cell and zero added mercury. For clinicians, the L91 is indicated for high-drain, extreme-temperature, long-storage, or hazardous-location medical applications. Ingestion requires immediate medical attention (800-498-8666).