A 20 V USB‑C laptop power adapter is a compact, universal charger that supports USB Power Delivery (PD) and can deliver up to 65 W of power (20 V × ~3.25 A). These adapters typically support a range of output voltages (5 V, 9 V, 12 V, 15 V, and 20 V), allowing them to fast-charge a variety of devices such as laptops, tablets, and smartphones. They also include protection circuits (over-current, over-voltage, short-circuit) and are designed to work with global input voltages (100–240 V), making them travel-friendly.
