1. Introduction
This manual provides essential instructions for the safe and effective use of your UpBright 29.4V AC/DC Adapter. This adapter is designed to provide power and charge compatible devices, specifically Hoverstar LBW14 25.2V/24V Lithium Li-ion Battery Hoverboards. Please read this manual thoroughly before use and retain it for future reference.
2. Important Safety Information
WARNING: Failure to follow these safety instructions could result in fire, electric shock, injury, or damage to the product or connected devices.
- Ensure the adapter's output voltage (29.4V) and connector type (Barrel Round Plug) are compatible with your device. This adapter is specifically for 25.2V or 24V systems and is NOT compatible with 36V or 42V systems, nor devices requiring a 3-prong connector.
- Do not expose the adapter to rain, moisture, or extreme temperatures.
- Do not disassemble or modify the adapter. Refer all servicing to qualified personnel.
- Keep the adapter away from children.
- Unplug the adapter from the power outlet when not in use or during electrical storms.
- Ensure proper ventilation around the adapter during operation. Do not cover it.

Figure 2.1: Ensure your device requires a barrel round plug. This adapter is not compatible with 3-prong connectors.

Figure 2.2: Detailed view of the barrel round plug tip for compatibility verification.
3. Package Contents
Your UpBright 29.4V AC/DC Adapter package should contain the following:
- 1 x UpBright 29.4V AC/DC Adapter with Barrel Round Plug

Figure 3.1: The UpBright 29.4V AC/DC Adapter.
Note: For international orders, a suitable outlet adapter (e.g., AU, EU, UK) may be included to fit your country/region's electrical outlets. Please verify the included power cord type upon receipt.

Figure 3.2: Examples of regional outlet adapters that may be included with international orders.
4. Setup
- Verify Compatibility: Before connecting, confirm that your device (e.g., Hoverstar LBW14 hoverboard) requires a 29.4V DC input and has a barrel round plug charging port. This adapter is designed for 25.2V/24V Lithium Li-ion batteries.
- Connect to Device: Insert the barrel round plug of the adapter firmly into the charging port of your hoverboard.
- Connect to Power Outlet: Plug the AC power cord of the adapter into a standard 100-240VAC, 50/60Hz electrical wall outlet.
- Begin Charging: Once connected, the device should begin charging.
5. Operating Instructions
Once properly connected, the adapter will supply power to your device and initiate the charging process. The charging duration will vary depending on the battery capacity and its current charge level.
- Charging Indicator: Please note that this adapter may not feature a built-in charging indicator light. It is recommended to monitor your device's own charging indicator (if available) or track charging time based on the manufacturer's recommendations for your hoverboard.
- Overcharge Protection: The adapter is equipped with Over Voltage Protection (OVP), Over Current Protection (OCP), and Short Circuit Protection (SCP) to safeguard your device during charging.
6. Maintenance and Care
- Cleaning: Disconnect the adapter from both the power outlet and the device before cleaning. Use a soft, dry cloth to wipe the exterior. Do not use liquid cleaners or aerosols.
- Storage: Store the adapter in a cool, dry place when not in use. Avoid wrapping the cord too tightly around the adapter body to prevent damage to the cable.
- Inspection: Periodically inspect the adapter and its cable for any signs of damage, such as frayed wires or cracked casing. Discontinue use if damage is observed.
7. Troubleshooting
- Device Not Charging:
- Check Connections: Ensure the adapter is securely plugged into both the wall outlet and the device.
- Verify Outlet: Test the wall outlet with another device to confirm it is functional.
- Battery Condition: Rechargeable batteries have a limited lifespan (typically 1 to 3 years). If the battery in your device is old or dead, it may not accept a charge, even with a functional charger. To determine if the issue is with the battery or the charger, a voltmeter can be used to check the charger's output voltage.
- Adapter Compatibility: Double-check that the adapter's output voltage (29.4V) and plug type (barrel round plug) precisely match your device's requirements. Incompatibility is a common reason for non-charging.
- Adapter Does Not Fit:
- Confirm that your device's charging port is a barrel round plug. This adapter is not designed for 3-prong connectors. Refer to Figures 2.1 and 2.2 for visual confirmation.
- Ensure the dimensions of the barrel plug match your device's port.
- Adapter Overheating:
- Unplug the adapter immediately.
- Ensure it is used in a well-ventilated area and not covered.
- If overheating persists, discontinue use and contact support.
8. Specifications
| Brand | UPBRIGHT |
| Model Number | Hoverstar Model LBW14 Power Charger |
| Input Voltage | 100-240VAC, 50/60Hz |
| Output Voltage | 29.4VDC |
| Connector Type | Barrel Round Plug |
| Product Dimensions | 4 x 2 x 2 inches |
| Item Weight | 0.01 ounces |
| Material | Metal, Plastic |
| Color | Black |
9. Warranty and Support
UpBright products are designed for reliability and performance. This adapter comes with the following warranty:
- 30-Day Refund: If you are not satisfied with your purchase, you may be eligible for a refund within 30 days of purchase.
- 24-Month Exchange: The product is covered by a 24-month exchange policy for manufacturing defects.
For warranty claims, technical assistance, or any questions regarding your UpBright adapter, please refer to the contact information provided with your purchase or visit the official UpBright store on Amazon.

Figure 9.1: UpBright Limited Warranty Certificate.