The 18650 3.7V 1800mAh Lithium-Ion Rechargeable Cell is a cylindrical rechargeable battery designed for portable electronics, DIY battery packs, robotics, flashlights, power supplies, IoT devices, and a wide range of battery-powered applications. With a nominal voltage of 3.7V and a capacity of 1800mAh, this cell provides a practical balance of energy storage, compact size, and rechargeable performance for applications requiring a reliable lithium-ion power source.
The 18650 is one of the most commonly used cylindrical lithium-ion battery formats and is widely adopted in electronics projects and custom battery-pack assemblies. The cell provides approximately 3.7V during normal operation and reaches approximately 4.2V when fully charged. Its cylindrical form factor allows it to be installed in compatible 18650 battery holders or incorporated into custom battery packs using suitable battery connectors, nickel strips, and protection circuitry.
With a rated capacity of 1800mAh, the cell can store approximately 6.66Wh of energy under nominal conditions. The actual usable capacity and operating time depend on the connected load, discharge current, battery condition, temperature, and application. For higher-capacity or higher-voltage battery systems, multiple cells can be connected in series or parallel using properly matched cells and an appropriate BMS designed for the resulting battery configuration.
The 18650 cell is suitable for a wide variety of low-to-medium power applications, including portable electronic devices, LED lights, DIY power banks, small robotics, wireless systems, IoT projects, backup power systems, battery-powered instruments, and educational electronics. For safe operation, the cell should be charged using a suitable lithium-ion charger and should not be exposed to overcharging, deep discharge, short circuits, excessive current, or physical damage.
Designed for electronics hobbyists, engineers, students, technicians, robotics enthusiasts, battery-pack builders, and DIY makers, the 18650 3.7V 1800mAh Lithium-Ion Rechargeable Cell is a versatile rechargeable power source for both individual-cell applications and properly designed multi-cell battery packs.
18650 Lithium-Ion Rechargeable Cell
3.7V Nominal Voltage
1800mAh Rated Capacity
Rechargeable Lithium-Ion Battery
Standard 18650 Cylindrical Size
Compact Cylindrical Design
Approximately 6.66Wh Nominal Energy
High Energy Density
Reusable Rechargeable Cell
Suitable for Portable Electronics
Ideal for DIY Battery Packs
Suitable for Robotics Projects
Ideal for IoT Applications
Suitable for LED Projects
Perfect for Flashlight Applications
Suitable for Wireless Electronics
Ideal for Battery Backup Systems
Suitable for DIY Power Banks
Compatible with 18650 Battery Holders
Suitable for Custom Battery Assemblies
Can Be Used in Series Configurations
Can Be Used in Parallel Configurations with Proper Protection
Stable Nominal Voltage
Easy to Replace
Suitable for Single-Cell Applications
Suitable for Multi-Cell Packs with Appropriate BMS
Practical Rechargeable Power Solution
Orders placed before 3 PM IST will be shipped on the same day (excluding Sundays and Public holidays) through our shipping partners. In rare cases, the pickup may get delayed during Public holidays / Bandh / Environmental disturbances.
