Description

The 3.7V Lithium Battery is a rechargeable Li-ion power source widely used in portable electronics, IoT devices, and Arduino projects. It provides stable voltage output, high energy density, and long-lasting performance, making it ideal for powering sensors, microcontrollers, and wireless modules such as ESP32, NodeMCU, or Raspberry Pi Pico.

With built-in protection circuits in most models, it prevents overcharging, over-discharging, and short circuits, ensuring safety and reliability. Compact and lightweight, this battery is perfect for DIY electronics, wearables, and robotics projects requiring efficient DC power.

Specifications:

• Voltage: 3.7V DC
• Capacity: 500mAh – 5000mAh (depending on model)
• Battery Type: Lithium-ion (Li-ion) / Lithium Polymer (Li-Po)
• Rechargeable: Yes
• Charging Voltage: 4.2V DC
• Discharge Cut-off Voltage: 3.0V
• Dimensions: Varies by capacity (e.g., 18650 cell or flat Li-Po pack)
• Connector Type: JST 2-pin or solder terminals
• Protection Circuit: Optional (depends on model)

Applications:

• Power supply for Arduino, ESP32, ESP8266, or Raspberry Pi projects
• IoT and wireless sensor nodes
• Portable electronics (MP3 players, handheld devices)
• Robotics and automation systems
• Wearable devices and mini gadgets

Why Choose This Battery:

• High energy density for long-lasting operation
• Rechargeable and eco-friendly
• Stable voltage ideal for sensitive electronics
• Compact and lightweight for small devices
• Compatible with TP4056 charging modules and DC-DC converters