E91 Energizer AA Alkaline Battery: E91 vs Lithium Batteries, Datasheet, Features
Battery;Non-Rechargeable;AA;Alkaline Zinc-Manganese Dioxide;1.5VDC;2.85Ah









Battery;Non-Rechargeable;AA;Alkaline Zinc-Manganese Dioxide;1.5VDC;2.85Ah
E91 is a non-rechargeable carbon monoxide battery. This article is going to introduce E91 vs Lithium Batteries, E91 features, and more details about E91.

Pin Alkaline Energizer E91 E92 AA AAA 1.5v
What is the E91?
E91 is a strong, long-lasting alkaline battery and preferred power for professionals nationwide in hospitals, fire and police departments, entertainment industries, and more. This Energizer AA alkaline battery is packaged for businesses, organizations, agencies that regularly use batteries in their operations. Outstanding performance and reliability combined with a great price make the Energizer AA battery a great buy.
E91 batteries are fresh and highly dependable, sure to deliver long-lasting power. The Energizer AA battery operates reliably in temperature extremes of -30° C to 55 C. Each Energizer AA has a minimum of 4 years, with the expiration month and year stamp coded. The Energizer AA alkaline battery contains no added mercury for safe and easy disposal.
E91 Features
• Higher energy density
• Superior service performance at all drain rates
• Superior cold temperature performance
• Lower internal resistance
• Longer shelf life
• Greater resistance to leakage
Specifications
- TypeParameter
- Mount
In electronic components, the term "Mount" typically refers to the method or process of physically attaching or fixing a component onto a circuit board or other electronic device. This can involve soldering, adhesive bonding, or other techniques to secure the component in place. The mounting process is crucial for ensuring proper electrical connections and mechanical stability within the electronic system. Different components may have specific mounting requirements based on their size, shape, and function, and manufacturers provide guidelines for proper mounting procedures to ensure optimal performance and reliability of the electronic device.
External - Weight22.679619g
- Series
In electronic components, the "Series" refers to a group of products that share similar characteristics, designs, or functionalities, often produced by the same manufacturer. These components within a series typically have common specifications but may vary in terms of voltage, power, or packaging to meet different application needs. The series name helps identify and differentiate between various product lines within a manufacturer's catalog.
E91 - Size / Dimension
In electronic components, the parameter "Size / Dimension" refers to the physical dimensions of the component, such as its length, width, and height. These dimensions are crucial for determining how the component will fit into a circuit or system, as well as for ensuring compatibility with other components and the overall design requirements. The size of a component can also impact its performance characteristics, thermal properties, and overall functionality within a given application. Engineers and designers must carefully consider the size and dimensions of electronic components to ensure proper integration and functionality within their designs.
0.57Dia x 1.99 H 14.5mmx50.5mm - Part Status
Parts can have many statuses as they progress through the configuration, analysis, review, and approval stages.
Active - Moisture Sensitivity Level (MSL)
Moisture Sensitivity Level (MSL) is a standardized rating that indicates the susceptibility of electronic components, particularly semiconductors, to moisture-induced damage during storage and the soldering process, defining the allowable exposure time to ambient conditions before they require special handling or baking to prevent failures
Not Applicable - Max Operating Temperature
The Maximum Operating Temperature is the maximum body temperature at which the thermistor is designed to operate for extended periods of time with acceptable stability of its electrical characteristics.
55°C - Min Operating Temperature
The "Min Operating Temperature" parameter in electronic components refers to the lowest temperature at which the component is designed to operate effectively and reliably. This parameter is crucial for ensuring the proper functioning and longevity of the component, as operating below this temperature may lead to performance issues or even damage. Manufacturers specify the minimum operating temperature to provide guidance to users on the environmental conditions in which the component can safely operate. It is important to adhere to this parameter to prevent malfunctions and ensure the overall reliability of the electronic system.
-30°C - Reach Compliance Code
Reach Compliance Code refers to a designation indicating that electronic components meet the requirements set by the Registration, Evaluation, Authorization, and Restriction of Chemicals (REACH) regulation in the European Union. It signifies that the manufacturer has assessed and managed the chemical substances within the components to ensure safety and environmental protection. This code is vital for compliance with regulations aimed at minimizing risks associated with hazardous substances in electronic products.
compliant - Termination Style
"Termination style" in electronic components refers to the method used to connect the component to a circuit board or other electronic devices. It determines how the component's leads or terminals are designed for soldering or mounting onto the circuit board. Common termination styles include through-hole, surface mount, and wire lead terminations.Through-hole components have leads that are inserted through holes in the circuit board and soldered on the other side. Surface mount components have flat terminals that are soldered directly onto the surface of the circuit board. Wire lead terminations involve attaching wires to the component for connection.The choice of termination style depends on factors such as the type of component, the manufacturing process, and the space available on the circuit board. Different termination styles offer various advantages in terms of ease of assembly, reliability, and space efficiency in electronic designs.
Button Top (Extending) - Approval Agency
The parameter "Approval Agency" in electronic components refers to the organization responsible for testing and certifying that a component meets specific safety, quality, and performance standards. These agencies evaluate products to ensure compliance with industry regulations and standards, providing assurance to manufacturers and consumers. Approval from recognized agencies can enhance a component's marketability and acceptance in various applications, particularly in sectors like automotive, aerospace, and healthcare. Common approval agencies include Underwriters Laboratories (UL), International Electrotechnical Commission (IEC), and the American National Standards Institute (ANSI).
IEC - Output Voltage
Output voltage is a crucial parameter in electronic components that refers to the voltage level produced by the component as a result of its operation. It represents the electrical potential difference between the output terminal of the component and a reference point, typically ground. The output voltage is a key factor in determining the performance and functionality of the component, as it dictates the level of voltage that will be delivered to the connected circuit or load. It is often specified in datasheets and technical specifications to ensure compatibility and proper functioning within a given system.
1.5V - Shelf Life
Shelf life in electronic components refers to the duration that a component can remain in storage under recommended conditions without significant degradation in its performance or reliability. It is an important factor for manufacturers and users, as prolonged storage may lead to changes in the material properties or functionality of the component. Typically, shelf life is specified for components such as capacitors, resistors, and semiconductors to ensure they perform as intended when implemented in electronic systems. Proper storage conditions, including temperature and humidity control, are crucial to preserving the shelf life of electronic components.
120 Months - Storage/Refrigeration Temperature
The parameter "Storage/Refrigeration Temperature" in electronic components refers to the recommended temperature range at which the components should be stored to maintain their integrity and functionality. This parameter indicates the temperature limits within which the components can be safely stored without risking damage or degradation. Storage temperature is crucial for preserving the performance and reliability of electronic components over time, especially for sensitive components such as integrated circuits and semiconductors. Refrigeration temperature may be specified for certain components that require lower temperatures to prevent degradation or prolong shelf life. It is important to adhere to the recommended storage/refrigeration temperature guidelines to ensure the longevity and proper functioning of electronic components.
-40°F~122°F -40°C~50°C - Shelf Life Start
Shelf Life Start refers to the point in time when the shelf life of an electronic component begins. The shelf life is the duration for which a component can be stored under specific conditions and still meet its performance specifications. The Shelf Life Start is typically marked by the date of manufacture or the date when the component is packaged and sealed. It is important to adhere to the specified shelf life guidelines to ensure the reliability and functionality of electronic components, especially in critical applications where performance is crucial.
Date of Manufacture - Battery Chemistry
A battery is a device that stores chemical energy, and converts it to electricity. This is known as electrochemistry and the system that underpins a battery is called an electrochemical cell. A battery can be made up of one or several (like in Volta's original pile) electrochemical cells.
Alkaline Manganese Dioxide - Outside Diameter
The outer diameter (OD) of a hollow circular pipe is the measurement of the outside edges of the pipe passing through its center.
14.5 mm - Battery Cell Size
The most common lithium-ion cell is the 18650 (the numbers define the physical dimensions and shape as follows: 18mm in diameter, 65mm long and the 0 means it has a round cross-section) which is due to its widespread use in laptop battery packs.
AA - Chemistry/Technology
The parameter "Chemistry/Technology" in electronic components refers to the specific materials and manufacturing processes used to create the component. It encompasses the chemical properties of materials such as semiconductors, dielectrics, and conductors, which influence performance characteristics like conductivity, thermal stability, and reliability. This parameter is critical for determining the suitability of components for various applications, including considerations like environmental impact, degradation over time, and compatibility with other materials. Understanding the chemistry and technology behind electronic components is essential for advancing performance and innovation in the field.
Alkaline - Battery Type
Battery type refers to the specific chemistry and design of a battery that determines its characteristics, performance, and applications. Common battery types include alkaline, lithium-ion, nickel-metal hydride, and lead-acid, each with unique properties such as voltage, capacity, energy density, and discharge rates. The choice of battery type affects factors such as longevity, rechargeability, and suitability for various electronic devices and systems. Understanding battery type is crucial for selecting the appropriate power source for specific electronic components and applications.
PRIMARY - Height50.5mm
- REACH SVHC
The parameter "REACH SVHC" in electronic components refers to the compliance with the Registration, Evaluation, Authorization, and Restriction of Chemicals (REACH) regulation regarding Substances of Very High Concern (SVHC). SVHCs are substances that may have serious effects on human health or the environment, and their use is regulated under REACH to ensure their safe handling and minimize their impact.Manufacturers of electronic components need to declare if their products contain any SVHCs above a certain threshold concentration and provide information on the safe use of these substances. This information allows customers to make informed decisions about the potential risks associated with using the components and take appropriate measures to mitigate any hazards.Ensuring compliance with REACH SVHC requirements is essential for electronics manufacturers to meet regulatory standards, protect human health and the environment, and maintain transparency in their supply chain. It also demonstrates a commitment to sustainability and responsible manufacturing practices in the electronics industry.
No SVHC - RoHS Status
RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.
Non-RoHS Compliant
E91 Dimension

E91 Dimension
E91 vs Lithium Batteries
POWER: A major advantage of lithium batteries vs. alkaline batteries is that lithium batteries last much longer.
PRICE: Alkaline batteries compared to lithium batteries – alkaline cost substantially less than lithium batteries.
VOLTAGE: If you decide to replace alkaline with lithium, it's important to check the replacement has both the appropriate voltage and type/size. Energizer e2 lithium AA batteries produce 1.5 volts, so they can be used to replace any regular alkaline AA units in most cases.
OPERATING TEMPERATURE: Lithium batteries perform even in the most extreme temperatures, making lithium batteries perfect for outdoor devices. Lithium batteries operate in extremely cold climates or extremely hot climates where alkaline batteries cease to function.
WEIGHT: Lithium batteries are much lighter than alkaline batteries. This is a great convenience for portable devices.
Datasheet PDF
- Datasheets :
Popularity by Region
Parts with Similar Specs
E91 Manufacturer
With global headquarters in St. Louis and widely recognized the world over, Energizer® and Eveready® branded products are marketed and sold in more than 150 countries around the globe. Energizer's battery business delivers the industry's most comprehensive portfolio of products. This extensive portfolio includes Carbon Zinc; Industrial Alkaline; Lithium AA Super-Premium; Photo Lithium; Coin cells; Flashlights and Lanterns. Energizer Holdings, Inc. became an independent, publicly held company in 2000 and is traded on the New York Stock Exchange under the symbol ENR.
What’s the maximum operating temperature of E91?
55°C.
Are Energizer E91 batteries rechargeable?
It is non-Rechargeable.
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