Specification: Four-LED capacity indicator; Equipped with type B socket, the maximum out power is 100W; Equipped with USB port DC 5V/2.1A, can be directly used to charge the mobile phones, tablets and other electronic devices. Two D-tap Input / Output ports DC11~16.8V, which can be fast charged the battery and meet the power supply needs of a variety of devices. Kastar LCD Dual Fast Charger, 110-240V Worldwide Input Voltage, wide range compatibility, it can charge for batteries with 6.8V - 16.8V of any capacity; Intelligent contral: Control MCU can automatically identify the voltage of the battery, going intelligent charge when being charging, and prevent overcharge. Intelligent Dual Fast charger LCD displays charging status, battery capacity, it can charge two batteries at the same time. Charging type is CC/CV with well reliability and high efficiency, with the function of pre-charging and li-ion battery 0V activation which can effectively extend battery life.