Features:- Designed as a 3 slot design, independent and convenient, intelligent and quick to charge.- Made of high-quality material, durable and heat-resistant, safe and reliable.- There is a indicator light to allow you to know the working status. The red light is always on during charging. The green light is always on after charging. Power connection, keep the battery green light always on.- Suitable for 3.7V Li-ion battery 10440, 14500, 16340, 16650, 14650, 18350, 18500, 18650, 26650.- There are multiple charging methods, such as USB power supply, car USB power supply, computer power supply, etc., to meet your demands.Specifications:Color: BlackType: 3 Slot Individual ChargerPowered by: USB ChargingInput Voltage: DC 5V 1-2AOutput Voltage: DC 4.2V 1000mACo.