In 2026, international aviation rules allow almost all portable electronic devices in hand luggage, but lithium batteries are subject to strict safety regulations. You can carry laptops, tablets, smartphones, cameras, and e-readers. However, power banks and spare lithium batteries must be kept in your hand luggage and are strictly prohibited from checked baggage due to fire risks. In fact, new 2026 regulations in some regions (like India) have banned the use of power banks and seat power outlets for charging during the flight. Most airlines limit you to batteries with a capacity of 100 Wh or less; anything between 100 Wh and 160 Wh usually requires prior approval. Items like hair dryers and electric shavers are allowed, but "smart luggage" with non-removable batteries is often banned. Always ensure your devices are charged before the flight, as security officers may ask you to turn them on to prove they are functional electronic devices and not modified threats.