The 14500 3.7V 500mAh Li-Ion Rechargeable Battery is a compact and lightweight lithium-ion rechargeable cell designed for portable electronics, DIY projects, robotics, IoT devices, emergency lighting, and battery-powered applications. With its 500mAh capacity and standard 14500 (AA-size) form factor, this battery provides reliable power, long cycle life, and stable voltage output.

Unlike a standard AA battery (1.5V), this 14500 Li-Ion battery operates at a nominal voltage of 3.7V, making it suitable only for devices designed to support 3.7V lithium-ion cells. It offers low self-discharge, high energy density, and can be recharged hundreds of times using a compatible 14500 Li-Ion battery charger.

This rechargeable battery is ideal for hobbyists, students, engineers, and makers building Arduino, ESP32, Raspberry Pi, robotics, and portable electronic projects.

Note: Use only a compatible Li-Ion charger (4.2V charging voltage). Do not replace standard 1.5V AA batteries with this cell unless the device specifically supports 3.7V Li-Ion batteries.

Specifications

Features

• Standard 14500 (AA-size) rechargeable Li-Ion battery
• 3.7V nominal output voltage
• 500mAh capacity
• High energy density
• Lightweight and compact design
• Low self-discharge
• Rechargeable for hundreds of cycles
• Stable voltage output
• Suitable for DIY electronics and embedded systems
• Compatible with standard 14500 battery holders
• Reliable performance for portable applications
• Ideal for robotics, IoT, and educational projects

Applications

• Arduino Projects
• ESP32 Projects
• ESP8266 Projects
• Raspberry Pi Projects
• Robotics
• DIY Electronics
• IoT Devices
• Portable Instruments
• LED Lighting
• Emergency Lights
• Battery Packs
• Wireless Sensors
• Educational Kits
• RC Electronics
• Prototype Development

Package Includes

• 1 × 14500 3.7V 500mAh Li-Ion Rechargeable Battery