The 3.7V 2000mAh 18650 Lithium-Ion Battery is a reliable and high-energy rechargeable cell designed for a wide range of portable electronic and industrial applications. Built in the standard 18650 cylindrical format (18mm diameter × 65mm length), this battery provides stable voltage output, efficient discharge performance, and long cycle life.
It is ideal for use in DIY electronics, robotics projects, Arduino systems, LED lighting, emergency backup units, power banks, medical devices, portable instruments, and battery packs.
Engineered with lithium-ion chemistry, this cell offers:
High energy density with lightweight construction
Stable 3.7V nominal voltage
2000mAh capacity for extended runtime
Low self-discharge rate
Rechargeable design with long cycle lifespan
Standard 18650 size compatibility
🔧 Technical Specifications
Battery Type: Lithium-Ion (Li-ion)
Model: 18650
Nominal Voltage: 3.7V
Nominal Capacity: 2000mAh
Typical Charging Voltage: 4.2V
Standard Size: 18mm × 65mm
Rechargeable: Yes
Applications: DIY projects, Robotics, LED systems, UPS packs, Portable devices
⚠️ Safety & Handling
Use only compatible Li-ion chargers (4.2V charging cutoff).
Do not short-circuit, puncture, or expose to excessive heat.
Recommended for use with protection circuits or BMS in battery packs.