1. Introduction
This manual provides essential instructions for the safe and effective use of your TollCor 1800mAh/3.7V Li-ion replacement battery, model CS-NP120FU. This battery is designed for compatibility with devices requiring the Insignia NS-DV111080F battery type.

Image 1.1: TollCor CS-NP120FU replacement battery, top view.
The battery features a Li-ion composition, 3.7V voltage, and 1800mAh (6.66Wh) capacity. Its dimensions are approximately 53 x 35.30 x 11 mm, with a gross weight of 60.9 g.
2. Safety Information
WARNING: Read all safety instructions before use. Failure to follow these instructions may result in fire, electric shock, or other injury.
- New Battery Pack: Must be fully charged before initial use.
- Risk of Fire or Burns: To reduce the risk of fire or burns, read the instructions in the operating guide before using the battery.
- Disassembly: Do not attempt to disassemble, open, or service the battery pack.
- Replacement: Replace only with the battery pack designated for this product. Using an incompatible battery may pose risks.
- Physical Damage: Do not crush, puncture, short external contacts, or dispose of in fire or water.
- Temperature: Do not store above 60°C (140°F). High temperatures can damage the battery and pose a safety hazard.
- Label Integrity: The warranty is void if the label is removed.

Image 2.1: Close-up view of the battery label with safety warnings.
3. Package Contents
The package contains the following item:
- 1x TollCor CS-NP120FU Replacement Battery
4. Setup (Installation)
To install the replacement battery:
- Ensure your device is powered off and disconnected from any power source.
- Locate the battery compartment on your device. Refer to your device's original instruction manual for specific battery removal and installation procedures.
- Carefully remove the old battery, if present.
- Insert the TollCor CS-NP120FU battery into the compartment, ensuring proper alignment of the contacts. The battery should fit securely.
- Close the battery compartment cover.

Image 4.1: Angled view of the battery, showing contact points for installation.
5. Operating Instructions
5.1. Initial Charging
As per safety guidelines, the new battery pack must be fully charged before its first use. Use a compatible charger designed for your device and Li-ion batteries.
- Connect your device (with the new battery installed) to its charger.
- Allow the battery to charge completely. Refer to your device's indicator for charging status.
- Once fully charged, disconnect the device from the charger.
5.2. Regular Usage
Use the battery as you would your original device battery. Monitor your device's battery indicator for remaining power. It is generally recommended to avoid completely draining Li-ion batteries to 0% frequently, as this can impact their lifespan.
6. Maintenance
- Storage: If storing the battery for an extended period, store it in a cool, dry place, ideally at around 50% charge. Do not store above 60°C (140°F).
- Cleaning: Keep the battery contacts clean. Use a dry, soft cloth to wipe away any dust or debris.
- Avoid Extremes: Protect the battery from extreme temperatures, direct sunlight, and moisture.
- Disposal: Dispose of depleted or damaged batteries responsibly according to local regulations. Do not dispose of in household waste or fire.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Battery not charging | Incorrect installation, faulty charger, dirty contacts, or battery issue. |
|
| Short operating time | Battery not fully charged, aging battery, or high power consumption by device. |
|
| Battery not recognized by device | Improper installation or incompatibility. |
|
8. Specifications
| Feature | Detail |
|---|---|
| Brand | TollCor |
| Model Number | CS-NP120FU |
| Battery Type | Li-ion (Lithium-ion) |
| Voltage | 3.7V |
| Capacity | 1800mAh (6.66Wh) |
| Dimensions (L x W x H) | Approximately 53 x 35.30 x 11 mm (2.09 x 1.39 x 0.43 inches) |
| Weight | Approximately 60.9 g (2.15 ounces) |
| Compatibility | Designed for devices using Insignia NS-DV111080F battery type. Please confirm part number before purchase. |
9. Warranty and Support
TollCor offers the following for this product:
- Refund Policy: 30-day refund period.
- Warranty: 365-day warranty.
- Customer Support: Timely 24-hour feedback.
For any questions or support needs, please contact TollCor through the platform where the product was purchased.