User Manual: 126090 3.7V 8000mAh Lithium Polymer Battery

1. Introduction

This manual provides essential information for the safe and efficient use of your 126090 3.7V 8000mAh Lithium Polymer (Li-Po) battery. Please read this manual thoroughly before using the battery and retain it for future reference. This battery is designed for a wide range of portable electronic devices requiring a reliable and high-capacity power source.

2. Safety Information and Warnings

⚠️ Lithium Polymer batteries carry potential fire risks if not handled correctly. Strictly follow all instructions for charging, discharging, and storage.

• Do not puncture, disassemble, short-circuit, or modify the battery.
• Avoid exposing the battery to extreme temperatures (above 60°C or below -20°C) or direct sunlight.
• Do not immerse the battery in water or other liquids.
• Keep the battery away from children and pets.
• If the battery shows signs of swelling, leakage, or damage, discontinue use immediately and dispose of it safely.
• Always use a charger specifically designed for Lithium Polymer batteries with the correct voltage and current settings.
• Do not overcharge or overdischarge the battery.
• In case of fire, use a Class D fire extinguisher or sand. Do not use water.

3. Product Overview and Specifications

The 126090 Lithium Polymer battery is a high-capacity, rechargeable power source featuring built-in safety protections.

Front view of the 126090 3.7V 8000mAh Lithium Polymer Battery showing model number and specifications.

Technical Specifications:

Diagram showing detailed product parameters including size, voltage, capacity, and energy of the 126090 battery.

Applicable Devices:

This battery is suitable for a wide range of devices, including but not limited to:

• LED lights
• MP3/MP4 players
• Electric toys
• Bluetooth headphones and audio devices
• Remote controls
• Mobile emergency power supplies (power banks)
• POS machines
• Interphones
• Voice recorders
• Tilt machines
• Smart watches
• Cameras

Image illustrating various applications for the 126090 battery, including beauty instruments, electric toys, humidifiers, and smartwatches.

4. Setup and Installation

Before installation, ensure your device is powered off and you have identified the correct battery compartment and connection points.

1. Verify Compatibility: Confirm that your device requires a 3.7V Li-Po battery and that the physical dimensions (12x60x90mm) and PH2.0 plug type are compatible.
2. Connect the Plug: Carefully align the PH2.0 plug of the battery with the corresponding socket in your device. Ensure the red wire connects to the positive (+) terminal and the black wire to the negative (-) terminal. Do not force the connection.
3. Secure the Battery: Place the battery securely within the device's battery compartment, ensuring it does not move freely or get pinched.
4. Initial Charge: For optimal performance and longevity, it is recommended to fully charge the battery before its first use.

Close-up of the PH2.0 plug connector for the battery, showing male and female ends.

5. Operating Instructions

Charging the Battery:

• Use only a dedicated Lithium Polymer battery charger that supports 3.7V Li-Po cells.
• Ensure the charger's output voltage does not exceed the battery's charging limit voltage of 4.2V.
• The recommended charging current is between 0.15A and 1.25A. Do not exceed the maximum charging current of 1.2A.
• Charge the battery within the specified temperature range of -10°C to 45°C.
• Monitor the battery during charging. Disconnect immediately if you notice any unusual heat, swelling, or odor.

Discharging the Battery:

• The battery is designed to operate with a discharge current between 0.15A and 1.25A. Do not exceed the maximum discharge current of 1.2A.
• The battery has a built-in overdischarge protection that will cut off power if the voltage drops below 2.75V. Avoid intentionally discharging below this limit.
• Operate the battery within the specified temperature range of -20°C to 60°C.

Built-in Safety Protections:

This battery is equipped with multiple safety features to ensure reliable operation:

• Overcharge Protection: Prevents the battery from being charged beyond its safe voltage limit.
• Overdischarge Protection: Prevents the battery from being discharged below its safe voltage limit.
• Overcurrent Protection: Protects against excessive current draw.
• Short Circuit Protection: Automatically cuts off power in case of a short circuit.

6. Maintenance and Storage

• Regular Inspection: Periodically inspect the battery for any physical damage, swelling, or signs of leakage. Discontinue use if any issues are found.
• Cleaning: Keep the battery terminals clean and free from dirt or corrosion. Use a dry, soft cloth for cleaning.
• Storage Temperature: Store the battery in a cool, dry place, ideally between 0°C and 25°C. Avoid extreme temperatures.
• Long-Term Storage: For long-term storage (more than one month), store the battery at approximately 50% charge. Do not store fully charged or fully discharged.
• Avoid Mechanical Shock: Do not drop, hit, or subject the battery to strong impacts.

7. Troubleshooting

Battery not charging:

Ensure the charger is compatible with 3.7V Li-Po batteries and functioning correctly. Check all connections for proper contact. Verify that the charging temperature is within the -10°C to 45°C range.

Device not powering on with battery:

Check if the battery is sufficiently charged. Ensure the battery is correctly installed and the PH2.0 plug is securely connected. Confirm that your device is compatible with the battery's voltage and current specifications.

Battery overheating during use or charging:

Immediately disconnect the battery from the device or charger. Cease use and allow it to cool down in a safe, non-flammable area. Overheating can indicate internal damage or an incompatible load/charger. Do not use the battery again if it overheated significantly or shows signs of swelling. Consult a professional.

Battery swelling or leaking:

Immediately discontinue use and handle with extreme caution. Swelling or leaking indicates a serious internal fault. Do not attempt to charge or use the battery. Dispose of it safely according to local regulations.

8. User Tips

• Always use a charger specifically designed for Lithium Polymer batteries to prevent overcharging and potential damage.
• Avoid completely draining the battery (deep discharge) as this can reduce its overall lifespan.
• When connecting, double-check the polarity (red for positive, black for negative) to prevent damage to both the battery and your device.
• If the battery is not used for an extended period, charge it to about 50% capacity every few months to maintain its health.

9. Compliance and Disposal

This product is CE certified, indicating compliance with European safety, health, and environmental protection requirements.

⚠️ Disposal of Lithium-ion Batteries:

Lithium-ion batteries must be disposed of responsibly. Do not dispose of batteries in household waste. For proper disposal, please check your local authority's website or contact your local waste management facility for information on battery recycling and disposal in accordance with applicable legal requirements.

10. Warranty and Support

For any questions, technical support, or warranty inquiries regarding your 126090 Lithium Polymer battery, please contact the seller or manufacturer directly through your purchase platform. Please provide your order number and a detailed description of the issue for prompt assistance.