SIMOLIO SM-002-BAT
SIMOLIO SM-002-BAT Replacement Li-Battery User Manual
For Wireless TV Headsets
1. Introduction
This manual provides essential information for the proper use, installation, and maintenance of your SIMOLIO SM-002-BAT replacement Li-battery. This battery is specifically designed for use with compatible SIMOLIO wireless TV headsets. Please read this manual thoroughly before installing or using the battery to ensure safe and efficient operation.

Figure 1.1: Front view of the SIMOLIO SM-002-BAT Li-ion Battery, showing the brand, model number, voltage, and capacity.

Figure 1.2: Back view of the SIMOLIO SM-002-BAT Li-ion Battery, indicating the 'PUSH' direction for installation and its physical dimensions (40 x 22 x 6mm).
2. Compatibility
The SM-002-BAT replacement battery is designed exclusively for specific SIMOLIO in-ear wireless TV headset models. It is not compatible with SIMOLIO over-ear TV headphones.
Compatible models include:
- SM-823 Pro
- SM-823D Pro
- SM-824D1
- SM-824D2
- SM-8245D
- SM-863D
- SM-828D2
- SM-824RX
- SM-828RX

Figure 2.1: Visual compatibility chart showing the SM-002-BAT battery and various compatible SIMOLIO in-ear wireless TV headphone models.
3. Specifications
| Feature | Detail |
|---|---|
| Model Number | SM-002-BAT |
| Battery Type | Li-ion Battery |
| Voltage | 3.7V |
| Capacity | 350mAh |
| Dimensions (L x W x H) | 40 x 22 x 6 mm (approximately) |
| Battery Cell Composition | Lithium Polymer |
| Item Weight | 0.352 ounces |
4. Setup and Installation
Follow these steps to replace the battery in your compatible SIMOLIO wireless TV headset or charging base:
- Identify Battery Compartment: Locate the battery compartment on your SIMOLIO in-ear headset or its charging base. This is typically on the underside or a designated slot.
- Remove Old Battery: Carefully open the battery compartment cover. Gently remove the old battery. Note its orientation for correct insertion of the new battery.
- Insert New Battery: Align the new SM-002-BAT battery according to the polarity indicators (+/-) in the compartment. For in-ear headsets, the battery often slides in obliquely. Ensure it is fully seated.

Figure 4.1: Illustration of inserting the SM-002-BAT battery obliquely into a compatible SIMOLIO in-ear headset.

Figure 4.2: Illustration of inserting the SM-002-BAT battery into the charging base of a compatible SIMOLIO headset.
- Close Compartment: Securely close the battery compartment cover.
- Charge Battery: Place your headset on its charging base or connect it to the appropriate power source to fully charge the new battery before first use.
5. Operating the Battery
The SM-002-BAT is a rechargeable Li-ion battery. Once installed, its operation is integrated with your SIMOLIO wireless TV headset system.
- Charging: Always charge the battery using the original SIMOLIO charging base or power adapter provided with your headset. Ensure the headset is correctly placed on the charging contacts.
- Battery Life: A fully charged battery provides extended listening time. Battery performance may vary based on usage volume and environmental conditions.
- Low Battery Indication: Your headset system will typically provide an audible or visual indicator when the battery level is low, signaling that it's time to recharge.
6. Maintenance and Care
Proper care extends the life of your SM-002-BAT battery:
- Regular Charging: For optimal battery health, avoid completely draining the battery frequently. Recharge it regularly, even if not fully depleted.
- Storage: If storing the battery or headset for an extended period, ensure the battery is partially charged (around 50%) and store it in a cool, dry place away from direct sunlight and extreme temperatures.
- Cleaning: Keep the battery contacts and the headset's charging contacts clean and free of dust or debris. Use a dry, soft cloth for cleaning.
- Avoid Physical Damage: Do not puncture, drop, or expose the battery to excessive force.
- Disposal: Dispose of old or damaged batteries responsibly according to local regulations. Do not dispose of batteries in household waste or by incineration.
7. Troubleshooting
If you encounter issues with your SM-002-BAT battery, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Battery not charging | Incorrect installation; Dirty charging contacts; Faulty charging base/cable; Defective battery. | Ensure battery is correctly inserted. Clean charging contacts on both battery and base. Try a different charging cable/base if available. If issue persists, the battery may be defective. |
| Headset not powering on after battery replacement | Battery not fully charged; Incorrect battery type; Battery not properly seated. | Fully charge the battery. Verify that you are using the SM-002-BAT model. Re-insert the battery, ensuring it is securely connected. |
| Short battery life | Battery degradation over time; Frequent deep discharges; Extreme temperatures. | Ensure regular charging. Avoid using or storing in extreme hot/cold conditions. If the battery is old, replacement may be necessary. |
| Battery appears swollen | Overcharging; Manufacturing defect; End of life. | Immediately discontinue use. Do not attempt to charge or use a swollen battery. Dispose of it safely according to local regulations. Contact SIMOLIO support for assistance. |
| Battery does not fit | Incorrect battery model; Headset model not compatible. | Double-check the battery model number (SM-002-BAT) and verify your headset model against the compatibility list in Section 2. |
8. Warranty Information
SIMOLIO products are manufactured with quality and reliability in mind. For specific warranty terms and conditions regarding your SM-002-BAT replacement battery, please refer to the warranty information provided at the time of purchase or visit the official SIMOLIO website. Keep your proof of purchase for warranty claims.
9. Customer Support
If you have any questions, require technical assistance, or need to report an issue that is not covered in this manual, please contact SIMOLIO customer support. You can typically find contact information on the SIMOLIO official website or through the retailer where you purchased the product.
For the most up-to-date support information, please visit the SIMOLIO Brand Store on Amazon.
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