5V 1A Power Bank Charger Module – Micro USB Step Up Boost Converter Board with Lithium Battery Protection for DIY Power Bank

Overview

The 5V 1A Power Bank Charger Step-Up Boost Module is the ultimate all-in-one circuit board for DIY enthusiasts wanting to build custom portable power banks or emergency backup chargers. Combining a lithium battery charging circuit, a battery protection IC, and a 5V step-up (boost) converter, this compact module allows you to safely charge a single 3.7V 18650 or LiPo cell via Micro-USB while simultaneously outputting a steady 5V 1A via a standard USB Type-A port to power your microcontroller projects, phones, or sensors.

Key Features

• All-in-One Functionality: Integrates battery charging, discharging protection, and a 5V boost converter onto a single miniature board.

• Smart Protection Circuitry: Built-in safeguards against over-charging, over-discharging, over-current, and short-circuits to extend cell life.

• LED Status Indicators: Red LED flashes/lights up during charging, and turns green (or turns off depending on state) when fully charged.

• Compact & Lightweight: Easily fits inside small 3D-printed enclosures or custom project cases.

Technical Specifications

Common Applications

• DIY Power Banks: Turn loose 18650 cells into a custom pocket-sized phone charger.

• Portable Microcontroller Power: Provide an isolated 5V supply for Arduino, ESP8266, or sensor nodes running on battery power.

• Emergency Gadget Backups: Power small USB-compatible desk lamps, fans, or Bluetooth modules on the go.

• Note to customers: Ensure correct polarity when soldering battery leads to B+ and B- pads to prevent permanent damage to the module!