UNIVERSAL HUB 9V Alkaline Battery with Snap Connector, General Purpose and 18650 Cell Battery (3, 9V Battery)

High Energy Density: Features a 2000mAh capacity, offering a perfect balance between weight and long-lasting power for mobile projects., Universal Compatibility: Standard 18650 size ensures it works seamlessly with DIY robotics kits, Ardino/ESP32 setups, and various electronic modules., Rechargeable & Eco-Friendly: Supports hundreds of charge/discharge cycles, making it a cost-effective and sustainable alternative to disposable batteries., Versatile Applications: The go-to power source for BO Motors, LED strips, emergency lights, solar energy storage, and remote-controlled vehicles., Stable Performance: Maintains a steady 3.7V nominal voltage (4.2V at full charge) to protect sensitive microcontrollers and sensors.