1. Introduction
This manual provides essential information for the safe and effective use of your BAOFENG UV-S9 Plus Two Way Radio Rechargeable 2800mAh Li-ion Battery. Please read this manual thoroughly before using the product to ensure proper operation and longevity.

Image 1.1: Two BAOFENG UV-S9 Plus 2800mAh Li-ion batteries. These batteries are designed for compatible BAOFENG two-way radios, providing extended power for communication.
2. Product Features
- High Capacity: 2800mAh Li-ion battery for extended usage.
- Compatibility: Designed for BAOFENG UV-S9 Plus and other compatible UV-S9 series radios.
- Charging Options: Can be charged via a dedicated charger dock or a fast charger USB cable.
- Safety Protection: Features current overload protection and leakage protection for safe operation.
- Charging Indicator: The direct charger cable includes an indicator light: red for charging, green for fully charged.
3. Safety Information
Observe the following safety precautions to prevent damage to the battery or injury to yourself:
- Do not disassemble the battery.
- Do not dispose of the battery in fire.
- Do not change or charge the battery in a hazardous location.
- Do not short-circuit the terminals.
- Keep the battery away from water and moisture.
- Store in a cool, dry place when not in use.
4. Installation & Charging
4.1 Battery Installation
- Ensure your radio is powered off before installing or removing the battery.
- Align the battery with the battery compartment on the back of your BAOFENG radio.
- Slide the battery into place until it clicks securely.
- To remove, press the battery release latch (if present on your radio model) and slide the battery out.
4.2 Charging Methods
The BAOFENG UV-S9 Plus battery can be charged using two primary methods:
- Charger Dock: Place the battery (or radio with battery attached) into a compatible BAOFENG charger dock.
- USB Fast Charger Cable: Connect the USB fast charger cable directly to the battery. This cable features an indicator light: Red indicates charging, Green indicates fully charged.

Image 4.1: Charging Methods. The image illustrates charging the battery using a dedicated dock or a USB cable connected to a wall adapter, laptop, power bank, or car charger. The indicator light shows red for charging and green for fully charged.
5. Compatibility
This BAOFENG UV-S9 Plus battery is compatible with various BAOFENG two-way radio models, including but not limited to:
- UV-S9 Plus
- UV-S9
- UV-S9 X3
- UV-10R
- UV-5R+ Plus

Image 5.1: Compatibility. This image shows the battery and lists several BAOFENG radio models it is designed to work with, ensuring broad applicability for users with different radio versions.
6. Operating Guidelines
Once the battery is installed and fully charged, your radio is ready for operation. Refer to your specific BAOFENG radio's user manual for detailed operating instructions.

Image 6.1: Application Scenarios. The image depicts the battery's utility in diverse professional environments such as security monitoring, construction sites, medical facilities, and tactical operations, highlighting its robust design for demanding use.
7. Maintenance & Care
Proper care extends the life of your Li-ion battery:
- Avoid extreme temperatures. Do not expose the battery to direct sunlight or very cold conditions for prolonged periods.
- Do not allow the battery to fully discharge frequently. Recharge before it is completely depleted.
- Clean battery contacts periodically with a dry, clean cloth to ensure good connection.
- If storing the battery for an extended period, charge it to approximately 50-60% and store in a cool, dry place. Recharge every 3-6 months to prevent deep discharge.
8. Troubleshooting
8.1 Battery Not Charging
- Ensure the charger dock or USB cable is properly connected to a power source and the battery.
- Check the charging indicator light. If it's not red, verify the connection.
- Inspect battery contacts and charger terminals for dirt or damage. Clean if necessary.
- Try a different power outlet or USB port.
- If using a charger dock, ensure the radio/battery is seated correctly.
8.2 Shortened Battery Life
- Ensure the battery is fully charged before use (green indicator light).
- Operating in extreme temperatures can reduce battery performance.
- Over time, all rechargeable batteries experience degradation. If the battery is old, consider replacement.
- Verify that the radio settings (e.g., high power transmission) are not excessively draining the battery.
9. Specifications
| Attribute | Value |
|---|---|
| Model Number | UV-S9 Plus |
| Battery Capacity | 2800mAh |
| Voltage | DC 7.4V |
| Chemistry | Li-ion (Lithium-ion) |
| Product Dimensions | 1.96 x 0.59 x 3.38 inches (50 x 15 x 86 mm) |
| Item Weight | 4.8 ounces (136 grams) |
| Special Features | Portable, Rechargeable, Overload Protection, Leakage Protection |
| Connectivity Technology | USB (for direct charging cable) |
| Manufacturer | Shiqun Electronics Co., Ltd |

Image 9.1: Battery Capacity and Chemistry. This image highlights the key technical specifications of the battery, including its 2800mAh capacity and Li-ion chemistry, which are crucial for understanding its performance characteristics.

Image 9.2: Battery Dimensions. This diagram provides precise measurements of the battery, which is important for ensuring proper fit and compatibility with radio models and accessories.
10. Warranty & Support
10.1 Warranty Information
A 3-month warranty is provided for this product. This warranty is valid only when purchased through "Shiqun Electronics Co., Ltd". Please retain your proof of purchase for warranty claims.
10.2 Customer Support
For technical assistance, warranty claims, or further inquiries, please contact the seller, Shiqun Electronics Co., Ltd, or refer to the official BAOFENG support channels.