1. Introduction
This manual provides instructions for the safe and effective use of your ISUNOO 10400mAh Li-polymer replacement battery, designed for the JBL Boombox 2 portable Bluetooth speaker. Please read this manual thoroughly before installation and use to ensure optimal performance and safety.
2. Safety Information
WARNING!
- Do not attempt to disassemble, open, or service the battery pack yourself.
- Replace only with a battery pack designated for this product (JBL Boombox 2).
- Do not crush, puncture, short external contacts, or dispose of in fire or water.
- Do not store above 60°C (140°F).
- Keep the battery away from children and pets.
- Avoid exposing the battery to extreme temperatures or direct sunlight.
3. Package Contents
Your package will contain the following items:
- 1 x ISUNOO 10400mAh Replacement Battery (SUN-INTE-213 / SUN-INTE-21)
- Optional: Repair Tool Kit (Pentalobe screwdriver, Phillips screwdriver, pry tool, suction cup, pick)
4. Specifications
| Feature | Specification |
|---|---|
| Battery Model Numbers | SUN-INTE-213, SUN-INTE-21 |
| Compatible Device | JBL Boombox 2 Player Speaker |
| Capacity | 10400mAh |
| Battery Cell Type | Li-polymer |
| Nominal Voltage | 7.26V |
| Max Charging Voltage | 8.4V ± 0.05V |
| Quality Certifications | CE, ROHS |
| Origin | Mainland China |
5. Setup and Installation
Caution: Battery replacement in electronic devices can be complex and may void your device's warranty if not performed correctly. If you are not confident in your ability to perform this installation, it is highly recommended to seek professional assistance.
Before starting, ensure your JBL Boombox 2 speaker is powered off and disconnected from any power source.
- Prepare Your Workspace: Work in a clean, well-lit area. Gather the necessary tools (if included or acquired separately).
- Access the Battery Compartment: Carefully open your JBL Boombox 2 speaker to access the internal battery. This typically involves removing screws and gently prying open the casing. Refer to specific disassembly guides for the JBL Boombox 2 if available.
- Disconnect the Old Battery: Locate the existing battery and its connector. Gently disconnect the old battery's connector from the speaker's main board. Do not pull on the wires.
- Remove the Old Battery: Carefully remove the old battery from its compartment.
- Install the New Battery: Place the ISUNOO replacement battery into the compartment. Ensure it fits securely.
- Connect the New Battery: Align the new battery's connector with the corresponding port on the speaker's main board and gently push to connect it. Ensure the connection is firm.
- Reassemble the Speaker: Carefully close and reassemble your JBL Boombox 2 speaker, ensuring all screws are tightened and the casing is properly sealed.
- Initial Charge: After installation, fully charge the speaker using its original charger before first use.
6. Operating Instructions
- First Use: After installation, fully charge the battery before using your speaker for the first time.
- Charging: Use the original JBL Boombox 2 charger or a compatible charger. Avoid using unapproved chargers.
- Normal Operation: The battery is designed for regular use in your JBL Boombox 2 speaker.
- Optimal Charging Practices: For best battery longevity, avoid completely draining the battery frequently. Charge it when the battery level is low, rather than waiting for it to shut down.
7. Maintenance
- Storage: If storing the battery for an extended period, ensure it is charged to approximately 50-70% and stored in a cool, dry place away from direct sunlight and extreme temperatures.
- Cleaning: Keep the battery and its contacts clean and dry. Do not use liquid cleaners directly on the battery.
- Avoid Physical Damage: Protect the battery from drops, impacts, and punctures.
8. Troubleshooting
- Battery Not Charging:
- Ensure the charger is properly connected and functional.
- Verify the battery connector is securely seated.
- Check for any visible damage to the battery or charging port.
- Short Battery Life:
- Ensure the battery has been fully charged.
- Reduce speaker volume or disable unnecessary features to conserve power.
- If the issue persists after several charge cycles, contact support.
- Speaker Not Powering On:
- Confirm the battery is correctly installed and charged.
- Attempt to power on the speaker while connected to the charger.
9. User Tips
- Users have reported that this battery provides real capacity and stable performance.
- The included tools are helpful for the installation process.
- Ensure the battery is fully charged before its first use to calibrate the power management system.
10. Quality Assurance
ISUNOO batteries undergo rigorous testing to ensure high quality and reliability. This includes:
- Multiple testing cycles before shipment.
- Use of 0-cycle, 100% original cells with real capacity.
- Integration of original protector chips for stable operation.
- Double protection against over-charge, over-discharge, over-current, and over-voltage.
Our manufacturing process adheres to strict quality control standards, backed by over 10 years of experience in battery production.
11. Warranty and Support
Warranty Period: The battery comes with a 12-month warranty for non-human damaged issues. The defect rate is less than 0.05%.
Claiming Warranty: If you experience any issues with your battery that are not due to human damage, please contact our customer service. Our engineers will assist in diagnosing the problem and provide a satisfactory solution, including a replacement if necessary.
Customer Support: For any after-sales problems or inquiries, please do not hesitate to contact our customer service representative, Amy Peng.
