1. Introduction
This manual provides essential instructions for the safe and effective use of your Galaxy Bang AC Adapter Charger. Please read this manual thoroughly before using the product to ensure proper operation and to prevent damage to your device or the adapter.
2. Safety Information
- Ensure the adapter's voltage and current specifications match your laptop's requirements.
- Do not expose the adapter to water, moisture, or extreme temperatures.
- Avoid dropping or subjecting the adapter to strong impacts.
- Do not attempt to disassemble or repair the adapter. Refer to qualified service personnel.
- Keep the adapter away from children.
- Unplug the adapter from the power outlet when not in use for extended periods.
3. Package Contents
- 1 x Galaxy Bang AC Adapter Charger
- 1 x Power Cord Cable

Image 1: The Galaxy Bang AC Adapter Charger shown with its included power cord, ready for use.
4. Specifications
| Feature | Description |
|---|---|
| Input Voltage | 100-240VAC, 50/60Hz (Worldwide Input) |
| Output Voltage/Current | 19V 3.42A (65W) |
| Compatibility | Also compatible with 19V 2.15A (40W) devices |
| Connector Type | Barrel connector (5.5mm x 1.7mm) |
| Model Number | SK90190342 |
| Certifications | CE, FCC, RoHS |
| Safety Features | Protection against incorrect voltage, short circuit, over current, over voltage, over-temperature, and internal overheating. |
| Product Dimensions | 5 x 3 x 2 inches |
| Item Weight | 8 ounces |
| Cable Length (AC) | 59 inches (approx. 1.5 meters) |
| Cable Length (DC) | 47 inches (approx. 1.2 meters) |

Image 2: This diagram highlights the multi-safe protection features integrated into the adapter, including safeguards against short circuits, over current, over voltage, and over-temperature.

Image 3: A detailed view of the smart chip, which contributes to better temperature control, efficient heat dissipation, reduced energy loss, and precise current regulation.

Image 4: An exploded diagram showing the internal components of the adapter, including the ABS+PC casing, aluminum sheet, copper sheet, transformer, main capacitance, and EMI filter circuit.

Image 5: This image illustrates the construction of the tinned copper core wire, featuring multiple shielding layers for efficient power transmission.
5. Setup
- Verify Connector Compatibility: Before connecting, ensure the adapter's barrel connector tip size matches your laptop's power input jack. This adapter features a 5.5mm x 1.7mm tip.
- Confirm Laptop Power Requirements: Check the power specifications (VOLTS, AMPS, WATTS) on your laptop's bottom label or the original adapter. This adapter is compatible with laptops requiring 19V output at 3.42A (65W), 2.37A (45W), or 2.1A (40W).
- Connect the Power Cord: Insert the AC power cord into the adapter's input port.
- Plug into Outlet: Insert the other end of the AC power cord into a standard wall outlet (100-240VAC).
- Connect to Laptop: Carefully insert the adapter's barrel connector into your laptop's power input jack.

Image 6: This visual guide helps confirm the correct tip size (5.5mm x 1.7mm) for your laptop's power jack, distinguishing it from incompatible sizes like 3.0mm x 1.1mm or USB-C.

Image 7: Instructions on how to verify your laptop's power requirements (model, voltage, current) and compare them with the specifications of your original adapter to ensure compatibility.
6. Operating Instructions
Once connected, the adapter will begin charging your laptop. An indicator light on your laptop (if present) may illuminate to show charging status. The adapter is designed for continuous use, providing stable power to your device.
7. Maintenance
- Keep the adapter and cables clean and free of dust. Use a dry, soft cloth for cleaning.
- Store the adapter in a cool, dry place when not in use.
- Avoid tightly winding the cables, which can cause damage over time.
- Regularly inspect the cables and connectors for any signs of wear or damage. Discontinue use if damage is observed.
8. Troubleshooting
- Laptop not charging:
- Ensure all connections are secure at both the wall outlet and the laptop.
- Verify the wall outlet is functional by plugging in another device.
- Confirm the adapter's specifications (voltage, current, connector size) match your laptop's requirements.
- Adapter feels hot:
- It is normal for the adapter to feel warm during operation. If it becomes excessively hot, disconnect it immediately and contact support.
- Ensure the adapter is in a well-ventilated area and not covered.
- Intermittent charging:
- Check for any loose connections or damaged cables.
- Try a different wall outlet.
9. Warranty and Support
Your Galaxy Bang AC Adapter Charger comes with the following:
- 1-Year Worry-Free Warranty: Covers manufacturing defects and ensures product reliability.
- 30-Day Money-Back Guarantee: Allows returns for any reason within 30 days of purchase.
- 24x7 Customer Service: Dedicated support available around the clock for assistance.
For warranty claims or technical support, please refer to the contact information provided with your purchase or visit the Galaxy Bang official website.

Image 8: This image details the 365-day warranty, 30-day money-back policy, and 24x7 service, alongside the specified lengths of the AC (59 inches) and DC (47 inches) cables.
10. Usage Scenarios
The compact and durable design of the Galaxy Bang AC Adapter Charger makes it suitable for various environments and uses:
- Travel: Easily packable for on-the-go charging.
- Work: Reliable power for office or remote work setups.
- Study: Essential for students needing consistent laptop power.
- Play: Ensures your laptop stays powered during leisure activities.

Image 9: A visual representation of the adapter's versatility, showing individuals using their laptops in different settings such as travel, work, study, and leisure.