Versatile Dual-Channel Charger: The INFITAC BC01 4.2V charger is designed for 3.7V CR2 and 16340 rechargeable lithium batteries, offering flexible power solutions. Independent Simultaneous Charging: Each channel is independently monitored, allowing you to charge one or two batteries of mixed types (CR2/16340) at the same time. Clear LED Indicators: Easily monitor charging status with intuitive LED lights: red for charging, solid green for complete, and flashing red for errors. Worldwide Compatibility: With a wide 100-240V AC input range, this battery charger is suitable for global use, ideal for travel. Includes 2x 600mAh CR2 Batteries: Comes with two high-performance, long-lasting CR2 rechargeable batteries, featuring excellent high-load capability.