Best Travel Adapters, Chargers, and Power Banks

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Powering a phone, laptop, earbuds, and camera abroad without a bag full of chargers is a solved problem, and solving it well is pure one-bag efficiency. Three pieces cover almost everyone. A universal travel adapter handles the plug-shape problem, letting your chargers fit outlets in most countries from a single device, and the key distinction to understand is that an adapter changes the plug shape, not the voltage, so it works for modern dual-voltage electronics (nearly all phone and laptop chargers) but not for high-wattage single-voltage appliances like hair dryers. A compact GaN charger is the second piece and the biggest space-saver, since GaN technology shrinks a laptop-capable charger to the size of the old phone brick, and a single multi-port GaN charger can power your laptop, phone, and earbuds at once from one wall socket, replacing the three separate chargers you would otherwise pack. A power bank is the third piece for the untethered day, and the critical spec is the airline rule, since power banks must fly in carry-on (never checked) and airlines cap capacity at 100Wh, which nearly all consumer banks (a 10,000 to 27,000 mAh range) fall under, so a 10,000 mAh slim bank of about 37Wh is universally allowed and covers a day of phone charging. Some adapters now build in GaN charging to combine the first two pieces, which is the minimalist's dream but throttles wattage when many ports are used. The one-bag ideal is a small adapter, one multi-port GaN charger, a short cable per device, and one slim power bank, which together fit a small pouch and keep everything charged anywhere in the world. Buy quality here, since a failing charger abroad strands all your devices at once.