MH-KC24 QC3.0 QC2.0 USB Quick Charge Module – DC-DC Step-Down Fast Charging Board for DIY Power Banks

Overview

The MH-KC24 is a specialized DC-DC step-down converter designed specifically for fast-charging mobile devices. It takes a wide range of input voltages (from 6V to 32V) and converts it into a high-speed USB output. The built-in intelligent chip automatically recognizes the fast-charging protocol of the connected device (Apple, Android, Samsung, etc.) and adjusts the voltage accordingly (from 3V to 12V) to maximize charging speed without damaging the battery.

Supported Fast Charge Protocols

• Qualcomm: QC 2.0 / QC 3.0

• Apple: 2.4A Fast Charge

• Samsung: AFC (Adaptive Fast Charging)

• Huawei: FCP (Fast Charger Protocol)

• BC1.2: DCP (Dedicated Charging Port) protocol

Key Features

• Automatic Negotiation: Intelligently adjusts output voltage between 3V and 12V based on your phone’s requirements.

• High Efficiency: Up to 97% conversion efficiency, keeping the module cool even during 24W fast charging.

• Wide Input Range: Perfect for cars (12V), trucks (24V), solar panels, or large Li-Po battery packs.

• Complete Protection: Includes input over-voltage, under-voltage, output over-current, and short-circuit protection.

• Compact Design: Small enough to be hidden behind a car dashboard or inside a small project box.

Technical Specifications

Ideal Applications

• DIY Solar Charger: Connect a 12V or 18V solar panel directly to charge your phone at full speed.

• Car/Truck USB Upgrade: Replace slow factory USB ports with a true QC3.0 fast charger.

• Field Charging Station: Use your 3S or 4S Li-Po drone batteries to charge your smartphone in the field.