☀️ Solar Panel 3.7V – AK68X37 Mini Solar Module

The AK68X37 3.7V Solar Panel is a compact and efficient mini solar module designed for powering small electronics, DIY projects, IoT devices, sensor nodes, and battery charging circuits. Its small size makes it perfect for portable builds, school projects, and low-power renewable energy experiments.

🌟 Key Features

• Compact 68mm × 37mm size

• Output voltage: 3.7V (nominal)

• High-efficiency monocrystalline solar cells

• Lightweight and durable epoxy surface

• Ideal for charging 18650 batteries via TP4056 module

• Great for DIY solar toys, models, and electronics

  ⚡ Recommended Uses

• Charging 3.7V lithium batteries

• Powering IoT & sensor modules

• Arduino / ESP8266 / ESP32 low-power projects

• Solar-powered toys or models

• Outdoor mini gadgets

• Educational solar experiments

  🔋 Compatible Charging Modules

• TP4056 Li-ion charger

• MT3608 DC-DC booster (if you need 5V output)

• 1S lithium protection boards