1. Introduction
This manual provides essential information for the safe and effective use of your SSCYHT 14.4V Lithium-Ion Replacement Battery. This battery is designed for use in compatible robot vacuum cleaners and other devices requiring a 14.4V power source with a JST port and a maximum 50W motor kit. Please read this manual thoroughly before installation and operation.

Image 1.1: Two SSCYHT 14.4V Lithium-Ion Replacement Batteries. Each battery features a blue PVC heat shrink tubing and a red JST connector with red and black wires.
2. Safety Information
Observe the following safety precautions to prevent injury or damage to the battery and connected devices:
- Charger Compatibility: Only use a 16.8V 2A charger for recharging this battery. Using an incompatible charger may cause damage, overheating, or fire.
- Temperature Range: Store and operate the battery within a temperature range of 0℃ to 50℃ (32°F to 122°F). Avoid extreme temperatures.
- Physical Protection: The battery features a PVC outer layer that offers a degree of water resistance. However, avoid submerging the battery in water or exposing it to excessive moisture.
- Integrated Protection: The battery is equipped with an intelligent Battery Management System (BMS) to protect against short-circuits, overcurrents, overcharging, and over-discharging. Do not attempt to bypass or modify the BMS.
- Disposal: Dispose of used batteries according to local regulations. Do not incinerate or puncture batteries.
- Children: Keep batteries out of reach of children.

Image 2.1: Core Protection Functions. This diagram shows the battery's built-in protections, including over-voltage, short circuit, over-current, over-discharge, and over-charge protection, contributing to long-lasting durability.
3. Package Contents
Depending on your purchase, your package will contain:
- SSCYHT 14.4V Lithium-Ion Battery (1 or 2 units, as specified at purchase)
4. Setup and Installation
This battery is designed for easy replacement in compatible devices such as robot vacuum cleaners (e.g., V3s, DF43). Ensure your device uses a 14.4V battery and has a JST port for connection.
- Power Off Device: Before installation, ensure your device is completely powered off and unplugged from any power source.
- Locate Battery Compartment: Refer to your device's original manual to locate and open the battery compartment.
- Remove Old Battery: Carefully disconnect the existing battery from its JST port and remove it.
- Connect New Battery: Connect the JST male interface of the SSCYHT replacement battery to the corresponding JST female port in your device. Ensure the connection is secure.
- Position Battery: Place the new battery securely within the compartment. The compact size (133x37x22mm) is designed for broad compatibility.
- Close Compartment: Close the battery compartment cover.

Image 4.1: JST Male Interface. This image highlights the red JST male connector, which is used to connect the battery to compatible devices.

Image 4.2: Application Example. This image illustrates the battery's application, showing it connected and installed within a robot vacuum cleaner, demonstrating its compatibility and fit.
5. Operating Instructions
Once installed, the battery powers your device. For optimal performance and longevity, follow these guidelines:
- Initial Charge: It is recommended to fully charge the battery before its first use.
- Charging Process: Connect the battery to a 16.8V 2A charger. The typical charge time is 1-2 hours. Do not leave the battery charging unattended for extended periods.
- Discharge: Allow the battery to discharge during normal device operation. Avoid completely draining the battery frequently, as this can reduce its overall lifespan.
- Compatibility: This battery is suitable for devices with a maximum motor kit power of 50W.
6. Maintenance
Proper maintenance ensures the longevity and performance of your battery:
- Storage: If storing the battery for an extended period, ensure it is partially charged (around 50-70%) and stored in a cool, dry place within the recommended temperature range of 0℃ to 50℃.
- Regular Use: For best results, use and recharge the battery regularly.
- Cleaning: Keep the battery and its connectors clean and free from dust or debris. Use a dry, soft cloth for cleaning.
- Service Life: The battery is designed to retain ≥ 60% of its capacity after 500 deep charge/discharge cycles, typically lasting 3-5 years under normal use.
7. Troubleshooting
If you encounter issues with your battery, consider the following:
- Battery Not Charging:
- Ensure the charger is correctly connected and is a 16.8V 2A model.
- Check for any visible damage to the battery or charger cables.
- Verify the power outlet is functional.
- Device Not Powering On:
- Confirm the battery is fully charged.
- Ensure the JST connector is securely attached to the device.
- Check if the device itself has other issues (refer to the device's manual).
- Reduced Run Time:
- Battery capacity naturally degrades over time and cycles.
- Ensure the battery is being fully charged each time.
- Operating the device in extreme temperatures can affect performance.
If problems persist, contact customer support for further assistance.
8. Specifications
| Feature | Specification |
|---|---|
| Brand | SSCYHT |
| Model Number | 66482431-14.4V2800MAH2PACK |
| Battery Type | Lithium-Ion (Li-ion) |
| Nominal Voltage | 14.4V |
| Nominal Capacity Options | 2600mAh, 2800mAh, 3200mAh, 3500mAh |
| Energy Compatibility | Fit for max 50W motor kit |
| Interface | JST Port |
| Recommended Charger | 16.8V 2A |
| Max Current (BMS) | 10A |
| Charge Time | 1-2 hours |
| Service Life | ≥ 60% capacity after 500 deep cycles (3-5 years) |
| Storage Temperature | 0℃ - 50℃ (32°F - 122°F) |
| Dimensions (L x W x H) | 133 x 37 x 22 mm (5.24 x 1.46 x 0.87 inches) |
| Weight | 300 g (10.6 ounces) |

Image 8.1: Battery Dimensions. This image provides a visual representation of the battery's dimensions, indicating a length of 133mm, a width of 37mm, and a height of 22mm.
9. Quality Assurance
SSCYHT maintains a strict quality management policy. Every lithium battery undergoes thorough QC appearance and functional testing before shipment to ensure reliability and performance.