18650 Button Top 3.7V 2800mA Li-ion Rechargeable Battery
Price in Sri Lanka

This 18650 lithium-ion cell provides a 2800mAh capacity suitable for general-purpose electronics and portable projects. Operating at a standard 3.7V, it offers a cost-effective power solution for a wide range of battery-powered applications. The button-top terminal design features a protruding positive contact, making it ideal for devices with recessed battery terminals or consumer electronics like tactical flashlights that require a physical "button" to make a secure connection.

Specifications

• Battery Type: 18650
• Battery Capacity: 2800mAh
• Battery Chemistry: Li-ion (Lithium-ion)
• Battery Voltage: 3.7V (Nominal) / 4.2V (Fully Charged)
• Battery Terminal Type: Button Top
• Brand: Unbranded (Normal Quality)
• Product Dimensions: 18.5mm x 67mm (Approximate Diameter x Height)

Features

• Standard Power Output: Provides a stable voltage supply for basic electronic components and microcontrollers.
• Enhanced Connectivity: The raised button top ensures reliable contact in devices with flat or recessed positive terminals.
• Rechargeable Design: Can be charged and discharged multiple times, serving as an alternative to single-use batteries.
• Universal Compatibility: Fits most consumer-grade battery compartments designed for protected or button-top 18650 cells.

Common Applications

• Tactical LED flashlights and headlamps
• Wireless doorbells and portable fans
• Handheld radios and remote-controlled hobbyist devices
• Portable power backup for low-to-medium drain electronics

Usage Recommendation

Note: These cells are recommended exclusively for hobbyist and experimental applications. For mission-critical, high-drain, or professional industrial use, we recommend using certified Tier-1 cells.

For better quality, please consider the following products:

• Samsung 18650 Button Top 3.7V 3500mA Li-ion Rechargeable Battery
• Samsung 18650 Flat Top 3.7V 3500mA Li-ion Rechargeable Battery