1. Introduction
This manual provides essential information for the safe and effective use of your SLLEA AC Adapter Charger, designed for compatibility with the Deik EV-660 2 in 1 Cordless Vacuum Cleaner. This adapter is engineered to provide reliable power for operating your device or charging its Li-Ion battery from any standard electrical power outlet.
Please read this manual thoroughly before using the product and retain it for future reference.
2. Safety Information
To ensure safe operation and prevent damage, please observe the following precautions:
- Compatibility: Always verify that the adapter's connector end and voltage specifications match your device (Deik EV-660) before connecting. Incorrect voltage or connector type can damage your device.
- Indoor Use Only: This adapter is designed for indoor use. Do not expose it to rain, moisture, or extreme temperatures.
- Ventilation: Ensure adequate ventilation around the adapter during use. Do not cover it or place it in an enclosed space where heat cannot dissipate.
- Damage Inspection: Do not use the adapter if the cable or casing is damaged. Contact support for a replacement.
- Overload Protection: The adapter features Over Voltage Protection (OVP), Over Current Protection (OCP), Over Temperature Protection (OTP), and Short Circuit Protection (SCP) to safeguard both the adapter and your device.
- Children and Pets: Keep the adapter and its cable out of reach of children and pets.
3. Product Overview
The SLLEA AC Adapter Charger is a compact and durable power supply unit. It converts standard AC wall power to the DC power required by your Deik EV-660 Cordless Vacuum Cleaner.

Figure 1: The SLLEA AC Adapter Charger. This image displays the main unit of the adapter, featuring a standard US two-prong plug on one end and a DC barrel connector on the other, connected by a black cable.
Key Features:
- Input Voltage: AC 100V-240V, 50-60 Hz, allowing for international use with appropriate plug adapters.
- Durability: Designed with robust materials to prevent easy damage during transportation or regular use.
- Portability: Lightweight and compact, making it an ideal portable power source.
- Safety Certifications: CE certified and tested by the manufacturer, ensuring compliance with safety standards.
- Protection Features: Includes Over Voltage Protection (OVP), Over Current Protection (OCP), Over Temperature Protection (OTP), and Short Circuit Protection (SCP).

Figure 2: Safety features and warranty information. This image highlights the adapter's safety protections (OVP, OCP, OTP, SCP) and indicates a 3-year warranty. It also mentions the charger's durability during transport and lack of physical noise during charging.
4. Setup
Follow these steps to set up your SLLEA AC Adapter Charger:
- Inspect the Adapter: Before first use, visually inspect the adapter and its cable for any signs of damage. Do not use if damaged.
- Verify Compatibility: Ensure the DC barrel connector of the adapter matches the power input port of your Deik EV-660 vacuum cleaner.
- Connect to Device: Insert the DC barrel connector firmly into the power input port of your Deik EV-660 vacuum cleaner.
- Connect to Power Outlet: Plug the AC adapter into a standard electrical wall outlet (100V-240V).
The adapter is now ready to provide power to your vacuum cleaner or charge its battery.
5. Operating
Once connected, the adapter will automatically begin supplying power or charging the battery of your Deik EV-660 vacuum cleaner. There are no user-adjustable settings on the adapter itself.
- Charging Indication: Refer to your Deik EV-660 vacuum cleaner's user manual for information on its charging indicator lights or display. The adapter itself does not have indicator lights.
- Normal Operation: The adapter is designed to operate without emitting physical noise. A slight warmth during operation is normal. If the adapter becomes excessively hot, disconnect it immediately and refer to the troubleshooting section.
6. Maintenance
Proper maintenance ensures the longevity and safe operation of your adapter.
- Cleaning: Disconnect the adapter from the power outlet and your device before cleaning. Use a soft, dry cloth to wipe the exterior. Do not use liquid cleaners or abrasive materials.
- Storage: When not in use, store the adapter in a cool, dry place, away from direct sunlight and moisture. Avoid tightly coiling the cable to prevent damage.
- Cable Care: Do not bend, twist, or pull the cable excessively. Avoid placing heavy objects on the cable.
7. Troubleshooting
If you encounter issues with your SLLEA AC Adapter Charger, consult the following table:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not powering on/charging |
|
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| Adapter feels excessively hot |
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| Loose connection at device port |
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8. Specifications
Detailed technical specifications for the SLLEA AC Adapter Charger:
| Feature | Specification |
|---|---|
| Input Voltage | AC 100V-240V, 50-60 Hz |
| Output Type | DC (specific voltage determined by Deik EV-660 requirements) |
| Cable Length | 4 feet (approx. 1.2 meters) |
| Color | Black |
| Item Weight | 4 ounces (approx. 113 grams) |
| Package Dimensions | 4 x 3 x 2 inches (approx. 10.16 x 7.62 x 5.08 cm) |
| Certifications | CE certified |
| Protection Features | OVP, OCP, OTP, SCP |

Figure 3: Close-up of the adapter's label. This image shows the technical specifications printed on the adapter's casing, including model number, input voltage range, and various safety certifications.
9. Warranty and Support
Warranty Information:
This SLLEA AC Adapter Charger comes with a 3-year warranty from the date of purchase, covering manufacturing defects. Please retain your proof of purchase for warranty claims.
Customer Support:
For any questions, technical assistance, or warranty claims, please contact SLLEA customer support through the retailer where the product was purchased or visit the official SLLEA store page.
We are committed to providing assistance and ensuring your satisfaction with our products.