J5019 Li-ion Battery Charger and Boost Module 5V Output Micro USB

J5019 Li-ion Battery Charger + Boost Module – 5V Output with Micro USB

The J5019 is a compact all-in-one Li-ion battery charging and boost converter module. It combines a lithium battery charger (via micro USB input) with a built-in boost converter that outputs a stable 5V DC, making it ideal for building DIY power banks, portable devices, and battery-powered embedded systems.

The module allows simultaneous charging and discharging, enabling pass-through power operation for uninterrupted device use while the battery charges.

Key Specifications

• Model: J5019
• Input: Micro USB, 5V DC
• Charging Voltage: 4.2V (Li-ion / LiPo)
• Charging Current: Up to 1A
• Boost Output Voltage: 5V DC
• Boost Output Current: Up to 1A
• Battery Compatibility: 3.7V Li-ion / LiPo single cell
• Module Size: Compact PCB (approx. 34mm x 26mm)

Key Features

• 2-in-1: Li-ion charger + 5V boost converter on a single board
• Micro USB charging input for easy power connection
• Simultaneous charge and discharge (pass-through) support
• Overcharge, over-discharge, and short circuit protection
• LED indicators for charging and full charge status
• Solder pad connections for battery and output wiring
• Compact size suitable for embedded and wearable projects

Applications

• DIY power bank construction
• Portable Arduino and ESP8266/ESP32 projects
• Battery-powered IoT devices
• Wearable electronics
• Portable sensor nodes and data loggers
• Solar-powered embedded systems

Package Contents

• 1x J5019 Li-ion Charger + Boost Module

Shipping & Delivery

Fast nationwide delivery across Pakistan. Orders are processed within 24 hours and delivered within 2–4 working days. All items are securely packed for safe arrival.

For more details, see our Shipping Policy and Return & Refund Policy.