Knowledge & Tips
Understand the technology. Choose the right one.
Which charger fits my smartphone? How many watts do I actually need? What do USB-C, Power Delivery, PPS, GaN, or Qi2 mean? FRATU explains modern accessory technologies in plain language and helps you find the right products for your device and use case.
Topic areas
Guide
Charging
Watts, charging standards, and the right charger-and-cable combination.
Guide
Cables & USB-C
Why the cable is part of the charging system.
Guide
Wireless & Qi2
Wireless charging, explained simply.
Glossary
Tech Glossary
From GaN to Qi2 — key terms explained briefly.
Guide
Battery Care
Charge fast. Treat your battery well.
Compatibility & Devices
What your device actually supports.
Buying Guides
What actually matters when buying accessories.
Samsung Galaxy
Charging power and accessories for the Galaxy ecosystem.
The basics at a glance
Before you decide: these six connections explain what really matters for charging and accessories.
The charging chain
The wattage printed on a charger alone doesn't determine the actual charging power — charger, cable and device all have to work together.
ChargingWatts, volts, amps
The basic electrical formula behind every power rating.
Tech GlossaryUSB-C isn't just USB-C
Cable power tiers
60 W
100 W
240 W
Every tier needs the right cable — from 100 W on, only with a 5 A cable and E-Marker.
Cables & USB-CUSB Power Delivery, PPS and AVS
USB Power Delivery
PPS
AVS
PPS and AVS are optional extensions of USB Power Delivery, not standalone standards.
ChargingFrom Qi to Qi2 25W
Qi2 and Qi2 25W are advancements of the Qi standard with magnetic alignment.
Wireless & Qi2What is GaN?
GaN can enable more compact, higher power-density charger designs — but that doesn't automatically mean faster charging.
Charging