This guide covers the essentials in one place — the standards, trade-offs, and practical advice that matter most.
- Every modern fast-charging standard works the same way at a high level: charger and device negotiate a shared power level before high-wattage charging begins.
- Open standards (USB-PD, Qi2) work across brands; proprietary standards (older Quick Charge, magnetic docks) are narrower but sometimes faster within their own ecosystem.
- Connector shape and charging standard are related but separate — matching connectors doesn’t guarantee matching fast-charge support.