Are all USB-C cables the same? What the e-marker chip does
The plugs match. What the cable can carry does not, and some cables contain a small chip whose job is to say so.
Guides
How the technology you charge every day works, with the sources behind each guide listed at the foot of the page.
Can you take a power bank on a plane? The rules after the March 2026 change
Yes, in your carry-on and never in checked bags. International rules tightened in 2026: two per person, and no recharging the power bank on board.
Does fast charging damage your phone's battery?
Every lithium-ion battery wears out. Phone makers build fast charging around that fact, and what they warn owners about is heat and long hours at full charge.
How USB-C Power Delivery works: the short conversation before your phone charges
A USB-C PD charger does not simply push power at your phone. It lists what it can supply, the phone asks for what it wants, and only then does the voltage change.
Is USB-C the same as Thunderbolt? The plug is shared, the abilities are not
USB-C names the shape of a connector. Thunderbolt names what can run through it. A port can look identical and do very different things.