HKE-PB400-K1 Power Bank PCB Module – Dual USB-A + Micro-USB with LED Indicator

The HKE-PB400-K1 is a compact yellow power bank PCB module designed for DIY power bank builds and Li-ion battery projects. Featuring dual USB-A output ports, a Micro-USB input for charging, and an onboard LED indicator, this board provides a simple and reliable solution for portable charging applications.

Whether you're building a custom power bank enclosure or prototyping a portable power supply, the HKE-PB400-K1 delivers stable 5V output with built-in battery protection circuitry — all in a small, lightweight form factor.

Key Features

• Dual USB-A Output Ports: Charge two devices simultaneously at 5V
• Micro-USB Input: Standard charging input for easy recharging via any Micro-USB cable
• Onboard LED Indicator: Clear LED status light for power-on and charging feedback
• Dedicated Charging IC: Onboard 8-pin IC for safe Li-ion charge and discharge management
• Boost Converter: Efficient DC-DC boost circuit for stable 5V USB output from Li-ion battery
• Compact Yellow PCB: Lightweight and easy to integrate into custom enclosures
• Model: HKE-PB400-K1

Package Includes

• 1x HKE-PB400-K1 Power Bank PCB Module

Applications

• DIY power bank projects
• Li-ion battery charger/discharger circuits
• Portable USB 5V power supply
• Electronics prototyping and maker projects

Compatibility

• Compatible with standard 18650 or Li-Po battery cells
• Works with any Micro-USB power adapter for recharging