Easy to read LCD screen Universal AC/DC input and USB output Dual slots lets you charge two battery type batteries at the same time, cutting your prep time in half The side USB port allows you to charge phones, tablets, power packs, and other USB powered devices simultaneously The charger can work with batteries of various voltages using different adapter plates One charger for all your devices Charging microprocessor can automatically identify a battery's voltage, and use intelligent charging technology to prevent overcharging Wake Up feature reactivates and charges batteries that have been excessively depleted