1. Introduction
This manual provides essential information for the safe and effective use of your Enyuly 1200mAh Ni-MH Replacement Battery. Please read these instructions carefully before installation and use to ensure optimal performance and safety.
2. Product Overview
The Enyuly 1200mAh Ni-MH Replacement Battery is designed to provide reliable power for compatible cordless phones. It features a 2.4V output and a 1200mAh capacity, ensuring extended talk and standby times.
2.1. Compatibility
This battery is compatible with the following models:
- Binatone MD500
- Micro DECT MD-500
- Big Button Combi
- Micro DECT compatible devices

Image 1: Enyuly 1200mAh Ni-MH Replacement Battery. This image shows the green battery pack with its white connector and red and black wires, along with the product label detailing model number CS-BTM500CL, rating 2.4V 1200mAh/2.88Wh, and Nickel Metal Hydride Battery Pack type.
3. Safety Information
WARNING: Failure to follow these safety instructions may result in fire, electric shock, injury, or damage to the product or property.
- Do not attempt to disassemble, open, or service the battery pack.
- Replace only with the battery pack designated for this product.
- Do not crush, puncture, short external contacts, or dispose of in fire or water.
- Do not store above 60°C (140°F).
- Warranty void if the label is removed.

Image 2: Close-up of the battery label showing safety warnings. The label clearly states the model number, rating, battery type, and critical safety precautions such as not disassembling, crushing, or exposing to high temperatures.
4. Setup and Installation
Follow these steps to install the replacement battery in your compatible cordless phone:
- Power Off Device: Ensure your cordless phone is powered off and disconnected from its charging base.
- Locate Battery Compartment: Open the battery compartment cover, typically located on the back of the phone handset.
- Remove Old Battery: Carefully disconnect the old battery's connector from the phone's socket and remove the battery.
- Insert New Battery: Connect the new Enyuly replacement battery's connector to the phone's socket. Ensure the connector is properly aligned and securely seated. Do not force the connection.
- Position Battery: Place the new battery into the compartment, ensuring wires are not pinched.
- Close Compartment: Replace the battery compartment cover.

Image 3: Close-up of the battery connector. This image highlights the white plastic connector with two metal pins and the red and black wires, illustrating the component that plugs into the phone's battery socket.
5. Operating and Charging
After installation, the battery requires proper charging for optimal performance.
- Initial Charge: For the first use, place the handset on its charging base for a continuous charge of 12-16 hours, even if the phone indicates a full charge sooner. This conditions the battery for maximum capacity.
- Regular Charging: Return the handset to its charging base when not in use. The battery is designed to be continuously charged without overcharging.
- Battery Indicator: Monitor your phone's battery indicator. Recharge when the indicator shows low battery to prevent complete discharge, which can reduce battery life.
6. Maintenance
Proper care and maintenance will extend the life of your battery.
- Storage: If storing the battery for an extended period, store it in a cool, dry place at room temperature. It is recommended to charge the battery to about 50% before storage and recharge it every 3-6 months to prevent deep discharge.
- Cleaning: Keep battery contacts clean. Use a dry, soft cloth to wipe any dust or debris from the battery and phone contacts.
- Disposal: Do not dispose of batteries in household waste. Ni-MH batteries contain recyclable materials. Please dispose of them at an authorized recycling center according to local regulations.
7. Troubleshooting
If you encounter issues with your replacement battery, consider the following:
- Battery Not Charging:
- Ensure the battery connector is securely plugged into the phone.
- Verify the phone is correctly seated on the charging base and the base is powered.
- Check for any dirt or corrosion on the charging contacts of both the phone and the base.
- Short Operating Time:
- Ensure the initial 12-16 hour charge was completed.
- Ni-MH batteries may require a few charge/discharge cycles to reach full capacity.
- Verify the battery is the correct model for your phone.
8. Specifications
| Feature | Detail |
|---|---|
| Model Number | CS-BTM500CL |
| Battery Type | Ni-MH (Nickel Metal Hydride) |
| Voltage | 2.4V |
| Capacity | 1200mAh / 2.88Wh |
| Product Dimensions | 1.98 x 1.11 x 0.57 inches (50.25 x 28.09 x 14.41mm) |
| Item Weight | 3.65 ounces (103.4g) |
| Manufacturer | Enyuly |
| Number of Batteries | 1 (included) |
| Date First Available | June 21, 2023 |
9. Warranty and Support
Enyuly provides 1 year of after-sales service for this replacement battery. For any questions, concerns, or support needs, please contact Enyuly customer service through your purchase platform.





