Power Rating: 3.7V DC – 2100mAh capacity provides reliable energy storage for medium-power electronic devices.

Type: 18650 Li-ion Rechargeable Battery – cylindrical lithium-ion cell designed for repeated charge and discharge cycles.

Rechargeable: Supports multiple charging cycles, reducing waste and providing long-term cost efficiency.

Compatibility: Suitable for flashlights, power banks, DIY electronics, RC devices, and other 3.7V battery-powered projects.

Build Quality: High-quality lithium-ion chemistry with durable casing for safe operation and long service life.

Safety Features: Built-in protection circuitry in some variants to prevent overcharge, over-discharge, and short circuits.

Portability: Compact 18mm × 65mm size allows easy integration into battery holders or DIY battery packs.

Applications: Ideal for portable electronics, robotics, DIY power banks, LED projects, and renewable energy storage solutions.