LI-ION 3.7V RECHARGEABLE BATTERY 3000MAH UP TO 4.2V 18650

The 18650 3.7V 3000mAh Li-Ion Rechargeable Battery is a powerful and reliable energy source designed for portable electronic devices and DIY power applications. Built using lithium-ion technology, this rechargeable battery provides high energy density, stable output voltage, and long operational life.

With a nominal voltage of 3.7V and a maximum charging voltage of 4.2V, this battery is suitable for powering LED flashlights, Bluetooth speakers, robotics systems, portable electronics, and custom battery packs. Its compact cylindrical design allows easy integration into various electronic and engineering projects.

The battery supports over 1000 recharge cycles, offering long-term usability and cost efficiency. It is commonly used in power banks, science projects, FM radios, MP3/MP4 players, and low-power DC applications requiring lightweight and rechargeable energy storage.

This flat-top 18650 cell measures 18mm in diameter and 65mm in length, making it larger than standard AA or AAA batteries.

Specifications

• Battery Type: 18650 Lithium-Ion Rechargeable Battery
• Chemistry: Lithium-Ion (Li-Ion)
• Nominal Voltage: 3.7V
• Maximum Charge Voltage: 4.2V
• Nominal Capacity: 3000mAh
• Discharge Cut-off Voltage: 3.0V
• Battery Dimensions: 18mm (Diameter) × 65mm (Height)
• Weight: 30g
• Battery Style: Flat Top Cell
• Life Cycle: ≥1500 cycles
• Recharge Cycles: More than 1000 times

Applications

• Power banks and portable chargers
• Robotics and science projects
• LED torch lights and emergency lighting
• Bluetooth speakers
• MP3 and MP4 players
• FM radios
• DIY battery packs
• Portable electronic devices
• Low-power DC systems
• Renewable and backup power projects