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3.7V 18650 Li-ion Battery – 2500mAh Rechargeable Cell for DIY Electronics & Power Banks

The 3.7V 18650 Li-ion Battery (2500mAh) is a high-capacity rechargeable cell commonly used in portable electronics, power banks, flashlights, DIY projects, and robotics. With reliable performance and long cycle life, it's a popular choice for powering Arduino, ESP32, and other microcontroller-based systems.

 

Key Features:

  • 2500mAh High Capacity
    Provides extended backup power for a wide range of low and moderate power devices.

  • Standard 18650 Size
    Fits into standard 18650 battery holders and slots; widely used in electronics and custom battery packs.

  • Rechargeable Lithium-Ion Chemistry
    Offers a good balance of energy density, weight, and cycle life.

  • Wide Application Range
    Can power everything from LED lights and power banks to wireless modules and small motors.

  • Optional Protection Circuit (varies by variant)
    Available with or without built-in PCB for overcharge, over-discharge, and short-circuit protection.

 

Applications:

  • Power banks and USB chargers

  • Arduino, ESP32, and Raspberry Pi projects

  • Flashlights and headlamps

  • RC cars, boats, and drones

  • Portable audio and IoT devices

  • DIY electronics and battery backup systems

 

Package Includes:

  • 1 × 3.7V 2500mAh 18650 Li-ion Battery

 

Specifications:

  • Model: 18650

  • Battery Type: Li-ion (Lithium-Ion)

  • Nominal Voltage: 3.7V

  • Capacity: 2500mAh

  • Charging Voltage: 4.2V max

  • Discharge Cutoff: ~2.5V

  • Rechargeable: Yes

  • Protection Circuit: Optional (specify if included)

  • Terminal Type: Flat top (or button top if applicable)

 

Dimensions:

  • Length: 65 mm

  • Diameter: 18 mm

 

Weight: 45 grams

 

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3.7V Battery 18650 2500 mAH

₹70.00Price
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