Author: Ethan Caldwell

Ethan Caldwell is GeekBlog's resident Apple specialist, covering the entire Apple ecosystem: iPhone, iPad, Mac, Apple Watch, AirPods and the software that ties them together. A longtime iOS user and gadget collector, Ethan tracks Cupertino's every move, breaking down Apple keynotes, A- and M-series chip benchmarks, iOS feature updates and the rumor mill into clear, practical takes that help readers decide whether the latest Apple hardware is worth the upgrade.

Buying a power bank in 2026 starts with a number that is not printed on the front of the box. Airlines now care about watt hours, not milliamp hours, and since 27 March 2026 the rules are the same worldwide: two power banks per passenger, none in checked baggage, none in the overhead bin, and no charging from one during the flight. A 27,000mAh pack is the largest you can carry without asking permission. Buy above that and you are buying paperwork. Quick answerFor a phone, 10,000mAh with at least 30W output covers two full charges and fits in a…

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