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. ● For optimal performance, please fully charge the batteries for at least 6 hours the first two times. ● Ensure that the battery model and voltage match the requirements of your device before use. Package Includes ● 1 × 4.2V Dual-Channel Battery Charger ● 2 × CR2 3.7V Rechargeable Li-ion Batteries ● 1 × Product Manual   Specifications: Rechargeable Battery Battery Type 2 x CR2 Rechargeable Battery Chemistry Lithium-ion Rated Voltage 3.7V Capacity (mAh) 600 Max Charging Voltage 4.2V Cycle Times ≥ 300 Dimensions 27mm (L) × 16mm (D) Weight 0.46oz Charging Temperature 32°F – 113°F (0°C – 45°C) Discharge Temperature -4°F – 122°F (-20°C – 50°C)   Battery Charger Input AC 100–240V, 50/60Hz Output (per channel) DC 4.2V / 300mA Charging Indicator Red while charging, green when fully charged Compatible Battery Types 3.7V Li-ion batteries including CR2, 16340 Dimensions 3.2in × 1.8in × 2.2in (79mm × 46mm × 55mm) Operating Temperature 32°F – 113°F (0°C – 45°C)