TP4056 Li-ion Battery Charger & DC-DC Boost Module — 3.7V to 5V Step-Up Power Supply for 18650 Cells (DIY Kit)

Charge, Protect, and Power Your Projects — All in One Board.
The TP4056 Li-ion Battery Charger Module with Boost Converter is a must-have for DIY makers, robotics enthusiasts, and IoT developers. Designed for 18650 Li-ion batteries (3.7V nominal, 4.2V max), this board allows you to safely charge your battery via USB and then boost the output voltage to 5V, perfect for powering Arduino, ESP32, sensors, and portable electronics.

Compact and efficient, it’s ideal for battery-powered robots, wearable tech, and solar charging setups.

⚙️ Key Features

• Integrated TP4056 Charging IC: Safe, automatic Li-ion battery charging via USB or 5V input

• DC-DC Step-Up Boost Converter: Converts 3.7–4.2V battery output to a steady 5V supply

• Built-in Protection: Overcharge, over-discharge, and short-circuit safeguards

• Micro-USB Input Port: Easy and universal charging interface

• Compact Design: Perfect for portable or space-limited projects

💡 Perfect For

• DIY power banks and portable chargers 🔋

• Arduino, ESP32, or Raspberry Pi power modules ⚡

• Robotics and IoT sensor nodes 🤖

• Solar or off-grid electronics projects ☀️

🛒 Why Makers Choose It

✅ All-in-one charging + boost solution
✅ Safe and efficient Li-ion power management
✅ Ideal for low-voltage battery applications
✅ Easy to integrate into any project

Build smarter portable electronics — get the TP4056 Charger & Boost Module today!