It is with high efficiency and reliability!High Quality 2 Slots Charger for 18650 Battery Black is suitable to 18650 battery type. Quick charge with automatic constant current control prevents battery from overcharging， short circuit， and electronic shock. This 18650 Battery Charger can charge battery quickly and safely. It is with high efficiency and reliability.                                    Features            Slim and portable designHigh quality and good performancePerfect fitting                                                            Specifications            Input Voltage    AC 100V - 240V 50 / 60Hz Max150mA    <br>Output Voltage    DC 4.2V 900mA    <br>Battery Type    2 x 18650 rechargeable battery    <br>Rechargeable Time Limit    About 2 hours    <br>Dimensions    1.73" x 1.26" x 3.27" (L x W x H)    <br>Weight    60g / 2.12 oz    <br>Color    Black    <br>                                                            Package Includes            1 x High Quality 2 Slots Charger for 18650 Battery Black