LED Dual USB 5V 2.4A Micro/Type-C Mobile Power Bank Charging Module with 18650 Lithium Battery Protection

Dual USB 5V 2.4A Power Bank Charging Module — Micro-USB & Type-C Input, 18650 Compatible

Build your own portable power bank with this all-in-one charging and protection module. Combining a lithium battery charger, boost converter, protection circuit, and dual USB output on a single compact PCB, this module gives you everything needed to turn one or two 18650 cells into a fully functional USB power bank — with LED battery level indication and comprehensive protection built in.

Available Variants

• 5V 2.4A — dual USB-A output at 5V 2.4A total, Micro-USB + Type-C input charging
• 5V 2A / 1A — dual USB-A output (2A + 1A), Micro-USB input charging

Electrical Specifications

• Input Voltage: 5V via Micro-USB and/or Type-C (variant dependent)
• Charging Current: Up to 1A (input limited)
• Output Voltage: 5V DC (boost regulated)
• Output Current: 2.4A total (shared across both USB ports)
• Battery Compatibility: Single or dual 18650 Li-ion cells (3.6–4.2V)
• Charge Cutoff Voltage: 4.2V ±1%
• Discharge Cutoff Voltage: 2.5V (over-discharge protection)
• Supply Voltage: 5V DC input

Protection Features

• ✅ Overcharge protection (4.2V cutoff)
• ✅ Over-discharge protection (2.5V cutoff)
• ✅ Overcurrent protection
• ✅ Short-circuit protection
• ✅ Reverse polarity protection
• ✅ Temperature protection (thermal shutdown)

LED Battery Level Indicator

• 4 × blue LEDs indicate remaining battery capacity in 25% increments
• Press the button to check battery level without connecting a load
• LEDs flash during charging, remain solid when fully charged

Key Features

• Simultaneous charge and discharge (pass-through charging supported)
• Micro-USB and Type-C input — compatible with most existing chargers and cables
• Dual USB-A output for charging two devices simultaneously
• Compact PCB — fits standard 18650 power bank enclosures
• No soldering required for battery connection (solder pads provided)

Typical Applications

• DIY portable USB power bank (phone charger, tablet charger)
• Raspberry Pi and Arduino UPS (uninterruptible power supply)
• Solar-charged battery pack with USB output
• Portable LED lighting power supply
• Emergency backup power for IoT devices
• Wearable electronics and portable project enclosures

Package Contents

• 1 × Power bank charging module (variant as selected)
• Note: 18650 battery cells and enclosure not included

Enjoy free standard shipping on all orders over $199 USD. Orders are processed within 1–2 business days.

Not satisfied? Return any item within 90 days of purchase for a full refund or exchange. Items must be in original condition.

We are committed to quality, reliability, and customer satisfaction. Every product is carefully selected and tested to meet the highest standards.