Are All USB Chargers Dual Voltage?
Almost all modern USB and USB-C chargers are dual voltage (100–240V) and work worldwide with just a plug adapter, but you should still confirm the "100–240V" marking on the brick.
Phone, tablet, laptop, camera, e-reader and handheld-console chargers are switch-mode supplies that accept the full global voltage range.
The frequency (50 vs 60Hz) does not matter for these chargers.
Very old or no-name chargers are the rare exception — if the label shows a single voltage, treat it as single voltage.
Check your exact device and destination →
Related guides
- Adapter vs Converter: What's the Difference?
- What Does "100–240V" Mean? (Dual Voltage Explained)
- What Happens If You Plug 110V Into 220V?
Guidance only — not professional electrical advice. Always confirm against your device's label before plugging in. Local wiring (especially in hotels and older buildings) can vary.