Charging Module Board Bank 5V 2.4A Dual USB
🔋 Dual USB Power Bank Charging Module Board – 5V 2.4A Output, Micro/Type-C Input with LED Display
This Power Bank Charging Module Board is a versatile and powerful DC-DC boost converter designed to convert a 3.7V lithium-ion battery (like 18650) into a 5V USB power supply. With dual USB output ports, Micro USB and Type-C inputs, and a built-in LED voltage display, it's perfect for building DIY power banks, portable chargers, and battery-powered Arduino or ESP projects.
⚙️ Technical Specifications
| Parameter | Specification |
|---|---|
| Input Voltage | 3.0V – 4.2V DC (from single Li-ion cell) |
| Output Voltage | 5V ± 0.1V |
| Output Current | Up to 2.4A (shared across both USB ports) |
| USB Outputs | 2 × USB-A (standard) |
| Input Ports | 1 × Micro USB + 1 × Type-C |
| Charging Input | Supports 5V charging via Micro or Type-C |
| Protection | Overcharge, over-discharge, short-circuit |
| Display | Digital LED display (shows battery voltage) |
| Battery Type | 3.7V Li-ion (1S) |
| Size | Approx. 60 × 21 mm |
✅ Key Features
🔌 Dual USB output – charge two devices simultaneously
🧠 Built-in intelligent voltage detection with real-time LED display
⚡ Output current up to 2.4A for fast and stable charging
🔋 Compatible with 18650, 3.7V lithium-ion batteries
🔄 Micro USB and Type-C input charging options
🛡️ Safety protections for over-voltage, over-current, and short-circuit
🛠️ Great for DIY power banks, portable projects, or power backup systems
📦 Applications
🔋 DIY rechargeable power bank
🔧 Portable Arduino/ESP32 project power supply
📱 Emergency USB charger
💡 LED light or fan powered from 18650 battery
🎓 Educational electronics kits and demonstrations
🔌 Connection Guide
Battery: Connect a 3.7V 18650 cell to B+ (positive) and B− (negative)
Input: Charge using Micro USB or Type-C port
Output: Use either or both USB-A ports to power 5V devices
⚠️ Use only protected 18650 cells or ensure you’re using a proper cell holder with overcharge protection.