1. Introduction
This manual provides essential information for the safe and efficient use of your Delta 20V 9A 180W AC Adapter Charger. This original AC adapter is designed to provide reliable power to compatible MSI gaming laptops, ensuring optimal performance and safety. Please read this manual thoroughly before using the product.
2. Safety Information
- Use only with compatible devices as specified in this manual.
- Do not expose the adapter to water, moisture, or extreme temperatures.
- Avoid dropping or subjecting the adapter to severe impact.
- Do not attempt to disassemble or repair the adapter yourself. Refer to qualified service personnel.
- Ensure proper ventilation around the adapter during use to prevent overheating.
- Keep out of reach of children.
3. Package Contents
Your package should contain the following items:
- 1 x Delta 20V 9A 180W AC Adapter (Model: A17-180P4B / ADP-180TB)
- 1 x AC Power Cord (may vary by region/plug type)
4. Specifications
| Feature | Specification |
|---|---|
| Model | A17-180P4B, ADP-180TB |
| Input | 100-240V ~ 50-60Hz |
| Output | 20V 9A |
| Power | 180W |
| DC Plug Size | 4.5*3.0mm (with 1 pin in center) |
| Output Type | DC |
| Connection | Desktop |
| Certifications | CE, EAC, EPA, FCC, UL |
| Warranty | 12 Months |
5. Setup
Follow these steps to properly set up your AC adapter:
- Verify Compatibility: Before connecting, ensure that your laptop's required voltage (V), current (A), and DC plug type match the specifications of this adapter (20V, 9A, 4.5*3.0mm with center pin). Refer to your laptop's original adapter or manual for this information.
- Connect AC Power Cord: Plug one end of the AC power cord into the adapter's input port and the other end into a wall outlet.
- Connect DC Plug to Laptop: Carefully insert the DC plug (4.5*3.0mm) into your laptop's power input port. Ensure a snug fit.
- Power On: Once connected, your laptop should begin charging or power on.

Figure 1: Guide to selecting a suitable adapter by checking Voltage, Current, and DC Plug.

Figure 2: Visual comparison of DC plug types, highlighting the 4.5*3.0mm plug with a center pin.
6. Operating Instructions
The Delta AC adapter is designed for straightforward operation:
- Plug the adapter into a standard wall outlet (100-240V AC).
- Connect the DC output plug to your compatible laptop.
- The adapter will automatically detect and provide the correct 20V 9A DC power to your laptop.
- Disconnect the adapter from the laptop and wall outlet when not in use or when transporting.
Video 1: 360-degree view of the Delta AC Adapter, showcasing its design and ports.
7. Maintenance
To ensure the longevity and optimal performance of your AC adapter, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the adapter. Do not use liquid cleaners or solvents.
- Storage: Store the adapter in a cool, dry place when not in use. Avoid wrapping the cables too tightly around the adapter to prevent damage.
- Cable Care: Regularly inspect the power cords for any signs of fraying, cuts, or damage. Replace damaged cords immediately.
- Ventilation: Ensure the adapter is placed in a well-ventilated area during operation to prevent overheating. Do not cover it with cloths or other materials.
8. Troubleshooting
If you encounter issues with your AC adapter, try the following solutions:
- No Power/Charging:
- Check if the AC power cord is securely plugged into both the adapter and the wall outlet.
- Ensure the DC plug is firmly connected to your laptop's power port.
- Test the wall outlet with another device to confirm it has power.
- Verify that the adapter's specifications (Voltage, Current, DC Plug) match your laptop's requirements.
- Adapter Overheating:
- Ensure the adapter is in a well-ventilated area and not covered.
- Reduce the load on the laptop if possible (e.g., close demanding applications).
- The adapter has built-in over-temperature protection, which may temporarily shut it down if it gets too hot. Allow it to cool before resuming use.
- Intermittent Charging:
- Check for loose connections at both ends of the power cords.
- Inspect the DC plug and laptop power port for any damage or debris.
- Protections: This adapter features overload protection, short circuit protection, over temperature protection, over charging protection, and over discharging protection. If the adapter stops working unexpectedly, these safety features may have been activated. Disconnect, inspect, and reconnect. If the problem persists, discontinue use.
9. User Tips
- Always use the correct plug type for your region. This adapter supports various plug types (US, EU, UK, AU, Universal/Without AC Cable).
- When traveling, consider purchasing the 'Without AC Cable' option if you already have a compatible AC cord for your destination.
- Keep the adapter's label visible to easily verify its specifications against your laptop's requirements.
10. Warranty and Support
This Delta AC Adapter comes with a 12-month warranty from the date of purchase. The warranty covers manufacturing defects and malfunctions under normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or improper installation.
For warranty claims or technical support, please contact your retailer or the manufacturer with your proof of purchase. Do not attempt to repair the product yourself, as this may void the warranty.





