1. Introduction
Thank you for choosing Energizer EN91 Industrial Alkaline AA Batteries. These batteries are designed to provide dependable, powerful performance for a wide range of professional and high-drain devices. This manual provides essential information for the safe and effective use of your batteries.
2. Safety Information
Please read and understand all safety precautions before using these batteries. Failure to follow these instructions may result in fire, explosion, or leakage.
- Do not recharge, disassemble, heat above 55°C (131°F), or incinerate batteries.
- Do not mix new and used batteries, or different types/brands of batteries.
- Do not expose batteries to water or extreme temperatures.
- Keep batteries out of reach of small children. If swallowed, seek medical attention immediately.
- If a battery leaks, avoid contact with the fluid. If contact occurs, wash thoroughly with soap and water.
- Insert batteries correctly, observing the polarity (+/-) markings on both the battery and the device.
3. Setup and Installation
Proper installation ensures optimal performance and safety.
- Identify the battery compartment on your device.
- Observe the polarity markings (+ and -) inside the compartment.
- Insert the Energizer EN91 AA battery, aligning the positive (+) end of the battery with the positive (+) terminal in the device, and the negative (-) end with the negative (-) terminal.
- Close the battery compartment securely.

This image displays a single Energizer EN91 Industrial AA Alkaline Battery. The battery is silver and black, featuring the 'Energizer' logo prominently in black text on a silver background, with 'INDUSTRIAL' in yellow text below it. The positive (+) terminal and 'AA' size designation are visible on the black end, along with 'ALKALINE BATTERY' and a date code '12-2025'. The negative (-) terminal is visible on the opposite end.
4. Operating and Usage
Energizer EN91 Industrial Alkaline AA Batteries are suitable for a wide range of electronic devices requiring AA size batteries, including:
- Flashlights
- Remote controls
- Wireless mice and keyboards
- Toys
- Portable audio devices
- Medical devices
For optimal performance, ensure your device is compatible with 1.5V alkaline batteries.
5. Maintenance and Storage
Proper maintenance and storage extend battery life and ensure safety.
- Store batteries in a cool, dry place at room temperature.
- Keep batteries in their original packaging until ready for use to prevent short-circuiting.
- Remove batteries from devices that will not be used for extended periods to prevent leakage.
- Dispose of used batteries according to local regulations. Do not dispose of them in household waste.
6. Troubleshooting
If your device is not functioning correctly after installing new batteries, consider the following:
- Device not turning on: Check that batteries are inserted with correct polarity (+/-). Ensure the battery contacts in the device are clean and free of corrosion.
- Short battery life: Ensure the device is not drawing excessive power. Verify that the batteries are fresh and not expired.
- Battery leakage: Immediately remove the leaking battery. Clean the battery compartment thoroughly with a cotton swab dipped in vinegar (for alkaline residue) and allow it to dry completely before inserting new batteries.
7. Specifications
| Feature | Detail |
|---|---|
| Battery Type | Alkaline Manganese Dioxide |
| Battery Size | AA |
| Voltage | 1.5 Volts |
| Quantity | 24 per pack |
| Item Weight | 1.34 pounds (for 24 batteries) |
| Model Number | EN91_azty |
| Recommended Use | Digital devices, high-drain applications |
8. Warranty and Support
For information regarding product warranty or technical support, please refer to the official Energizer website or contact their customer service directly. Keep your purchase receipt as proof of purchase.
Energizer Official Website: www.energizer.com