1. Introduction and Overview
This manual provides comprehensive instructions for the safe and efficient use of your DURACELL CEF7 Ion Speed 500 Battery Charger. This charger is designed to quickly and reliably recharge Nickel-Metal Hydride (NiMH) AA and AAA batteries. The kit includes the charger unit and two DURACELL NiMH AA rechargeable batteries, enabling you to power your devices with long-lasting, reusable energy.
2. Safety Information
- Use this charger only with NiMH rechargeable batteries. Attempting to charge other battery types (e.g., alkaline, carbon-zinc) may cause personal injury or damage to the charger and batteries.
- Do not disassemble, modify, or attempt to repair the charger. Refer all servicing to qualified personnel.
- Keep the charger and batteries away from water, moisture, and extreme temperatures.
- Ensure proper ventilation during charging. Do not cover the charger.
- Always insert batteries with correct polarity (+/-) as indicated on the charger.
- Unplug the charger from the power outlet when not in use or before cleaning.
- This appliance is not intended for use by persons (including children) with reduced physical, sensory, or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
3. Package Contents
Verify that all items are present in your package:
- 1 x DURACELL CEF7 Ion Speed 500 Battery Charger
- 2 x DURACELL NiMH AA Rechargeable Batteries
4. Setup
- Unpack the Charger: Carefully remove the charger and batteries from their packaging.
- Connect to Power: Plug the charger into a standard electrical outlet.
- Insert Batteries: Insert NiMH AA or AAA batteries into the charging slots, ensuring the positive (+) and negative (-) terminals align with the markings inside the charger. The charger can accommodate both AA and AAA sizes.

This image displays the Duracell Ion Speed 500 battery charger kit. The kit includes the charger unit and two AA NiMH rechargeable batteries. The packaging highlights features such as 'Ion Speed 500', '500mW Charge Power', and 'Guaranteed to last 5 Years'.
5. Operating Instructions
- Initiate Charging: Once batteries are correctly inserted and the charger is plugged in, indicator lights (if present) will illuminate to show that charging has begun. The charger is designed for efficient power delivery, indicated by its '500mW Charge Power' capability for AA batteries.
- Charging Time: Charging times vary depending on the battery capacity (mAh) and their current charge level. Refer to the charger's specifications or battery packaging for estimated charge times.
- Completion: The indicator lights will change (e.g., turn green or off) when charging is complete.
- Remove Batteries: Once charging is complete, unplug the charger from the power outlet and carefully remove the charged batteries.
6. Maintenance
- Cleaning: Disconnect the charger from the power source before cleaning. Use a dry, soft cloth to wipe the exterior of the charger. Do not use liquid cleaners or solvents.
- Storage: Store the charger and batteries in a cool, dry place away from direct sunlight and extreme temperatures.
7. Troubleshooting
- Batteries Not Charging:
- Ensure the charger is securely plugged into a working power outlet.
- Verify that batteries are inserted with correct polarity (+/-).
- Confirm that the batteries are NiMH rechargeable type. Non-rechargeable batteries will not charge.
- Check if the batteries are severely depleted or damaged. Some chargers may not initiate charging for extremely low voltage batteries.
- Indicator Light Not Working:
- If the charger is plugged in and batteries are inserted correctly, but no light appears, try a different power outlet.
- Ensure the batteries are making proper contact with the charging terminals.
8. Specifications
| Brand | DURACELL |
| Model | CEF7 Ion Speed 500 |
| Input Voltage | 240 Volts |
| Output Voltage | 1500 Millivolts |
| Compatible Battery Types | NiMH AA, NiMH AAA |
| Item Weight | 2.4 ounces |
| Package Dimensions | 6.3 x 3.1 x 1.5 inches |
| UPC | 806791952593 |
9. Warranty and Support
The DURACELL CEF7 Ion Speed 500 Charger and included batteries are guaranteed to last for 5 years. For warranty claims, technical assistance, or further inquiries, please refer to the contact information provided on the product packaging or visit the official DURACELL website. Keep your purchase receipt as proof of purchase.





