Universal 18650 Battery Charger with LED Indicator, 4 USB Slots, for Li-ion and Lithium Batteries

General Description: The universal 18650 battery charger is designed to simultaneously charge up to 4 rechargeable batteries of different sizes. With a smart LED display, it indicates the charging status of each battery. Its compact and portable design makes it easy to take anywhere. Technical Specifications Model: BH-042100-04U Input Voltage: DC 5V 1-2A Output Voltage: 4.2V 1000mA Size: 90 x 30 x 122 mm Weight: 106 grams Compatibility and Accessories Compatible with Li-ion batteries: 10440, 14500, 16340, 16650, 14650, 18350, 18500, 18650 Installation Simply plug the USB cable into a power outlet to begin charging. Usage Simultaneously charges 4 rechargeable batteries of different sizes. LED indicators: red during charging, green when charging is complete. Other information Built-in protection against short circuits, overheating, overvoltage, and over-discharge. Automatic charging stop in case of excessive temperature. Stainless steel rail for increased durability. Car adapter available for worldwide use.