Power adapter QOLTEC 51717 45W 20V 3A AC indoor charger for smartwatch, black

The Qoltec 51717 is a 42W indoor power adapter designed for charging batteries and portable devices. With a compact black housing (90 × 50 × 30 mm) and an input voltage of 220–240 V, this adapter is suitable for home or office use as a main or additional charger. Built-in protections and modern charging protocols ensure efficient and safe power delivery to a wide range of devices.

Advantages

The adapter integrates Power Delivery (PD) for automatic voltage and current negotiation with connected devices, supporting safe charging from small accessories up to laptops. A reversible USB Type‑C connector simplifies plugging and supports improved data and power transfer characteristics compared with older USB types. The unit includes multiple protections — overvoltage, overload, short‑circuit and overheating safeguards — to reduce risk of damage and improve reliability. Its compact dimensions and 42W output make it a practical choice for everyday charging needs.

Suitable for

• Charging smartphones and tablets
• Powering USB-C headphones and small accessories
• Charging ultrabooks and laptops that accept USB-C PD up to 42W
• Use as a home or office mains charger

Key specifications

• Model: Qoltec 51717
• Output power: 42 W
• Input voltage: 220–240 V
• Connector: USB Type‑C with Power Delivery support
• Dimensions (W×D×H): 90 × 50 × 30 mm
• Colour: Black
• Weight: 0.04 kg

How to use

Connect the adapter to a mains outlet (220–240 V) and insert the USB‑C cable into the adapter and into the device to be charged. The Power Delivery protocol will negotiate the appropriate voltage and current automatically. Monitor device temperature during the first charge cycle and avoid covering the adapter to maintain airflow.

Recommendations

Use a certified USB‑C cable rated for the required current and avoid exposure to liquids or extreme temperatures. If the adapter becomes unusually hot, unplug it and allow it to cool before further use.