Quick Charge – What It Is and How Fast Charging Works

Feb 17, 2025

By Konrad Mazurczak

What Is Quick Charge?

Quick Charge (QC) is a fast‑charging technology developed by Qualcomm. It allows much faster phone charging thanks to increased output voltage and current. Compared to standard charging, Quick Charge shortens battery charging time without compromising its lifespan.

History of Quick Charge – From 1.0 to 4.0+

Quick Charge 2.0 – A Big Leap in Performance

QC 2.0 introduced significant improvements compared to QC 1.0.

Specification:

Maximum voltage: 12V
Maximum current: 3A
Maximum power: 36W

Devices Supporting QC 2.0:

Samsung: Galaxy Note 4, Note 5, Galaxy S6, S7
LG: LG G4, LG V10
Motorola: Moto X (2nd Gen), Moto G4 Plus
Sony: Xperia Z4, Xperia Z5

Quick Charge 3.0 – Intelligent Voltage Management

QC 3.0 introduced INOV (Intelligent Negotiation for Optimum Voltage) technology, which allows dynamic voltage adjustment in the 3.6V–20V range.

Devices Supporting QC 3.0:

HTC: HTC 10, HTC U11
LG: LG G5, LG V20
Xiaomi: Mi 5, Mi 6, Mi Note
Sony: Xperia XZ, XZ Premium

Quick Charge 4.0 and 4.0+ – The Best Version of QC?

Quick Charge 4.0+ offers additional protections and Dual Charge, which means splitting power between two power management circuits.

Devices Supporting QC 4.0+:

Xiaomi: Pocophone F1, Mi 8, Mi 9
Razer: Razer Phone 1 and 2
LG: LG G7 ThinQ, LG V40 ThinQ

Best Chargers Compatible with Quick Charge

DEKO 100W GaN Fast

Maximum power: 100W
Ports: 2x USB‑C, 1x USB‑A
Compatibility: MacBooks, Samsung devices, smartphones, tablets

DEKO Ładowarka POWER 100W GaN Fast - 2x USB-C, 1x USB-A Biała (DC1003P2CAWA) - Ładuj jednocześnie laptop, tablet i telefon. Kompatybilna z MacBookami i Samsungami, oferuje moc do 100W na port USB-C.

DEKO POWER 100W GaN Fast Charger - 2x USB-C, 1x USB-A White (DC1003P2CAWA)

Review

DEKO 67W GaN Fast

Maximum power: 67W
Ports: 2x USB‑C, 1x USB‑A
Compatibility: MacBooks, iPhones, laptops

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