LiftMaster 485LM 4228 Replacement Battery Back-Up User Manual

1. Introduction

This manual provides essential information for the installation, operation, and maintenance of your LiftMaster 485LM 4228 12V Replacement Battery. This battery is designed to provide backup power for compatible LiftMaster DC motor garage door openers, ensuring continued functionality during power outages.

Please read this manual thoroughly before installation and retain it for future reference.

2. Important Safety Information

• Non-Spillable Battery: The 485LM 4228 is a non-spillable battery. Handle with care.
• Recycling: Batteries must be recycled. Do not dispose of batteries in household waste. For recycling information, call 1-855-522-2288.
• Compatibility: Ensure the battery is compatible with your specific garage door opener model before installation. Refer to your opener's manual or replacement parts diagram.
• Installation: Disconnect power to the garage door opener before performing any installation or maintenance. Follow all instructions carefully to prevent injury or damage.

Image 1: LiftMaster 485LM 4228 Replacement Battery. The label indicates it is a non-spillable 12V 4.5AH battery, manufactured by Leoch Battery Co., Ltd. in Vietnam, and distributed by The Chamberlain Group LLC USA. Important recycling information and safety symbols are also visible.

3. Compatible Garage Door Opener Models

The LiftMaster 485LM 4228 12V Replacement Battery is compatible with the following LiftMaster DC Motor Garage Door Openers featuring Backup Battery Systems:

• LiftMaster 8500
• LiftMaster 8500W
• LiftMaster 8550W
• LiftMaster WLED
• LiftMaster 8360
• LiftMaster 8360W

Note: For LiftMaster Models LJ8900W and LJ8950W, the addition of the 485LM Battery increases the maximum door weight capacity from 650 lbs. to 850 lbs.

4. Installation Instructions

The installation process for the 485LM 4228 battery is generally straightforward. Always refer to your specific garage door opener's instruction manual for detailed, model-specific steps.

General Installation Steps:

1. Disconnect Power: Unplug the garage door opener from the electrical outlet to ensure no power is supplied during installation.
2. Locate Battery Compartment: Identify the battery compartment on your garage door opener. This is typically secured with screws or clips.
3. Remove Old Battery (if applicable): If replacing an existing battery, carefully disconnect the wires (usually red for positive, black for negative) and remove the old battery. Note the orientation of the wires.
4. Insert New Battery: Place the new LiftMaster 485LM 4228 battery into the compartment.
5. Connect Wires: Connect the red wire from the opener to the positive (+) terminal of the new battery and the black wire to the negative (-) terminal. Ensure connections are secure.
6. Secure Compartment: Close and secure the battery compartment cover.
7. Restore Power: Plug the garage door opener back into the electrical outlet. The battery will begin charging automatically.

The battery typically takes approximately 24 hours to fully charge after installation.

5. Operation

Once installed and charged, the LiftMaster 485LM 4228 battery operates seamlessly with your compatible garage door opener. In the event of a power outage, the battery backup system will automatically engage, allowing you to operate your garage door opener as if the power were still on. All safety and security features of your opener will remain operational during battery backup use.

6. Maintenance

To ensure optimal performance and longevity of your battery backup system:

• Regular Testing: Periodically test your battery backup system by unplugging the garage door opener from the main power supply and operating the door. This confirms the battery is functioning correctly.
• Battery Replacement: Backup batteries typically need to be replaced approximately every 2 years, depending on usage and environmental conditions. Replace the battery when you notice reduced performance or if the opener indicates a low battery status.
• Cleaning: Keep the battery and its terminals clean and free from corrosion.

7. Troubleshooting

Opener Beeps Continuously:

If your garage door opener is beeping continuously, it often indicates a low or depleted battery in the backup system. This is a signal that the battery requires charging or replacement.

• Check Power Connection: Ensure the garage door opener is properly plugged into a working electrical outlet. The battery charges when the opener is connected to main power.
• Allow Charging Time: After installation or a power outage, allow up to 24 hours for the battery to fully charge.
• Replace Battery: If the beeping persists after ensuring proper power connection and charging time, the battery may have reached the end of its service life and requires replacement.

8. Specifications

9. Warranty and Support

The LiftMaster 485LM 4228 is a genuine LiftMaster replacement part. For specific warranty details, please refer to the documentation provided with your original garage door opener or contact LiftMaster customer support directly.

For technical assistance or further inquiries, please visit the official Chamberlain Group support website: support.chamberlaingroup.com.

10. Recycling and Disposal

This product contains a lead-acid battery. Proper disposal and recycling are crucial to protect the environment. Do not dispose of this battery with general household waste.

Look for designated battery recycling centers in your area. For recycling information, you may call 1-855-522-2288.

Pb RECYCLE symbol indicates the presence of lead and the necessity for recycling.