Guides

How it works, and why.

Short pieces on charging and power, written for somebody deciding and findable by somebody searching.

Cords® Guides poster: Charging by the bed. On Pale Pink, Cylindric UX1 in line drawing on a bedside table, a short ink cord to this side and a long orange cord to the other Charging · Charging by the bed: one charger for twoOne charger on the bedside table can serve both sides of the bed: two phones, a watch or earbuds, and the lamp. Use cables long enough to reach, charge on... Cords® Guides poster: Which charger does a MacBook need? Four orange cords on Mist White, each as long as Apple's largest adapter for one MacBook, to scale: MacBook Neo 20 W, MacBook Air up to 70 W, MacBook Pro 14-inch up to 96 W, and MacBook Pro 16-inch 140 W, which runs off the page Charging · Which charger does a MacBook need? And an iPhone?Every MacBook sold today, and every iPhone from iPhone 15, charges over USB-C with USB Power Delivery, so one charger serves both. Apple's MacBook adapters run from 20 W to... Cords® Guides poster: What is fast charging? A charge drawn as one orange cord that climbs fast to about 70 % and then eases Charging · What is fast charging?Fast charging is charging with more power than the basic 5 V of USB. The charger, the cable and the device agree on a higher voltage or current, so the... Cords® Guides poster: What is a GaN charger? GaN set large on Electric Orange Charging · What is a GaN charger?A GaN charger uses gallium nitride, not silicon, for the parts that switch the power. Gallium nitride loses less energy as heat and switches faster, so the charger can be... Cords® Guides poster: How to choose a USB-C charger. Cylindric UX1 in line, with four cords leaving its four ports Charging · How to choose a USB-C chargerStart with the device. Find the watts it needs, then choose a charger that gives them from the port you will use, over a cable rated for them. USB Power...