Introduction
This manual provides essential instructions for the installation, operation, and maintenance of your POLY Plantronics 86180-01 spare battery. This battery is specifically designed as a replacement for the Plantronics CS540 wireless headset.
Important Safety Information
- Do not disassemble, puncture, or modify the battery.
- Avoid exposing the battery to extreme temperatures (hot or cold), direct sunlight, or fire.
- Keep the battery away from water and other liquids.
- Dispose of used batteries according to local regulations. Do not dispose of in household waste.
- Keep out of reach of children.
- Use only with compatible devices as specified.
Package Contents
- One (1) POLY Plantronics 86180-01 Spare Battery
Installation Guide
Follow these steps to replace the battery in your Plantronics CS540 wireless headset:
- Locate the battery compartment on your Plantronics CS540 wireless headset. Refer to your headset's user manual for the exact location if needed.
- Carefully open the battery compartment cover. This may involve sliding a latch or gently prying open a panel.
- If an old battery is present, disconnect its connector and remove it from the compartment.
- Align the connector of the new POLY Plantronics 86180-01 spare battery with the corresponding port inside the compartment. Gently push to secure the connection.
- Ensure the battery is seated correctly within the compartment.
- Close the battery compartment cover until it clicks securely into place.

Image: The POLY Plantronics 86180-01 spare battery, demonstrating its compact size when held in a hand, with approximate dimensions of 0.9 inches (2 cm) in height.
Charging and Operation
- Initial Charge: For optimal performance and battery longevity, fully charge the new battery before its first use. Place your CS540 headset on its charging base.
- Charging Process: The headset's indicator light will typically show the charging status. Refer to your CS540 headset manual for specific light patterns.
- Talk Time: A fully charged battery provides up to 9 hours of talk time with the CS540 headset. Actual talk time may vary based on usage and environmental factors.
Maintenance and Storage
- Storage: When not in use for extended periods, store the battery in a cool, dry place.
- Temperature: Avoid storing or operating the battery in extreme temperatures, as this can degrade performance and shorten lifespan.
- Charging Habits: Do not allow the battery to fully discharge for prolonged periods. Regular charging helps maintain battery health.
- Cleaning: Keep battery contacts clean and free from dust or debris.
Troubleshooting
| Issue | Possible Solution |
|---|---|
| Headset not powering on or short talk time. | Ensure the battery is correctly installed and fully charged. Verify the headset is properly seated on its charging base. |
| Battery not charging. | Check that the headset is properly placed on the charging base and that the base is connected to power. Clean the charging contacts on both the headset and the base. If issues persist, the charging base or headset may require service. |
Technical Specifications
| Feature | Specification |
|---|---|
| Model Number | 86180-01 |
| Battery Type | Lithium Polymer (Li-Polymer) |
| Voltage | 3.7V |
| Capacity | 140 mAh |
| Energy | 0.55 Wh |
| Compatible Devices | Plantronics CS540 Wireless Headset |
| Product Dimensions | 7.2 x 4.9 x 0.1 inches |
| Item Weight | 0.317 ounces |
Warranty and Support
For detailed warranty information, technical assistance, or customer support, please visit the official POLY website or contact their customer service department. It is recommended to retain your purchase receipt for any warranty claims.





