The universal single-slot charger is designed for convenience and safety. Its smart circuitry automatically detects when your power cell is at full capacity and stops the current, preventing overcharging and protecting the cell's lifespan. An intuitive LED indicator shines red while charging and turns green when the cycle is complete. This AC-powered (220-240V) charger is compatible with a wide range of popular cell sizes, making it a truly versatile tool for your rechargeable needs. The included 18650 power cell is a high-energy source, providing a stable 3.7 volts with a robust 1200mAh capacity. This advanced chemistry cell ensures long-lasting performance in devices like high-powered flashlights, small drones, GPS units, and custom power banks. Its standardized 18mm by 65mm cylindrical shape allows for broad compatibility and easy installation.