1. Product Overview
This manual provides essential information for the safe and effective use of Energizer EN91 Industrial Alkaline AA Batteries. These batteries are designed for reliable performance in various devices.

Image 1.1: Packaging for Energizer EN91 Industrial Alkaline AA Batteries, showing the 144-count box.
The Energizer EN91 Industrial Alkaline AA Batteries are supplied in a bulk package containing 144 individual AA batteries. They are suitable for a wide range of applications, including LED flashlights and other devices requiring AA power.
2. Safety Guidelines
Adherence to the following safety guidelines is crucial to prevent personal injury and damage to devices.
- Insert Correctly: Always insert batteries correctly according to the positive (+) and negative (-) marks in the device. Incorrect insertion can lead to leakage, heat generation, or explosion.
- Do Not Recharge: These are primary alkaline batteries and are not designed to be recharged. Attempting to recharge them may cause leakage, fire, or explosion.
- Do Not Disassemble: Do not disassemble, crush, puncture, or modify the batteries. This can release hazardous materials.
- Avoid Short Circuits: Do not short-circuit the battery terminals. This can generate excessive heat and cause burns or fire.
- Keep Away from Children: Keep batteries out of reach of small children. If swallowed, seek immediate medical attention.
- Do Not Mix: Do not mix new and used batteries, or batteries of different types or brands. This can reduce overall performance and cause leakage.
- Extreme Temperatures: Avoid exposing batteries to extreme temperatures (hot or cold) or direct sunlight.
- Remove from Device: Remove batteries from devices that will not be used for extended periods to prevent potential leakage.
3. Usage and Installation
Follow these steps for proper battery installation and usage in compatible devices.
- Identify Battery Compartment: Locate the battery compartment on your electronic device.
- Open Compartment: Open the battery compartment cover. This may involve sliding a latch, unscrewing a screw, or pressing a release button.
- Observe Polarity: Carefully observe the polarity markings (+ and -) inside the battery compartment.
- Insert Batteries: Insert the Energizer EN91 AA batteries, ensuring that the positive (+) end of the battery aligns with the positive (+) terminal in the compartment, and the negative (-) end aligns with the negative (-) terminal.
- Close Compartment: Securely close the battery compartment cover.
- Test Device: Turn on your device to confirm proper battery installation and functionality.

Image 3.1: A single Energizer Industrial AA battery, illustrating its cylindrical shape and polarity markings.
4. Storage Recommendations
Proper storage helps maintain battery performance and extends shelf life.
- Cool, Dry Place: Store batteries in a cool, dry place at room temperature.
- Original Packaging: Keep batteries in their original packaging until ready for use to prevent accidental short-circuiting.
- Avoid Metal Objects: Do not store batteries loose in a pocket or purse with metal objects like coins or keys, as this can cause a short circuit.
5. Disposal Information
Dispose of used batteries responsibly according to local regulations.
- Recycling: Many communities offer recycling programs for alkaline batteries. Check with your local waste management facility for proper disposal options.
- Do Not Incinerate: Never dispose of batteries in fire, as they may explode.
6. Technical Specifications
| Feature | Specification |
|---|---|
| Brand | Energizer |
| Model Number | EN91 |
| Battery Cell Composition | Alkaline |
| Battery Size | AA |
| Unit Count | 144.0 Count |
| Recommended Uses | LED Flashlights, various electronic devices |
| Manufacturer | Eveready/Energizer |
| Package Dimensions | 7.72 x 4.8 x 4.21 inches |
7. Troubleshooting
If your device is not functioning correctly after installing new batteries, consider the following:
- Check Polarity: Ensure batteries are inserted with correct positive (+) and negative (-) orientation.
- Verify Contact: Make sure the battery terminals are clean and making proper contact with the device's contacts. Gently clean contacts if necessary.
- Replace All Batteries: If using multiple batteries, replace all of them simultaneously with new ones. Mixing old and new batteries can lead to poor performance.
- Device Malfunction: If the issue persists, the problem may lie with the device itself rather than the batteries. Consult your device's instruction manual.
8. Manufacturer Information
Brand: Energizer
Manufacturer: Eveready/Energizer
Address: St. Louis, MO 63141 (as indicated on packaging)
Origin: Made in the USA or Singapore (as indicated on packaging)

Image 8.1: Packaging detail showing "Made in U.S.A. for / Fabriqué aux É-U. pour: Energizer Brands, LLC, St. Louis, MO 63141".







