The maximum input wattage of A601 is 100W(5~25V). As for recharging time, it depends on which panel you are using and weather conditions, for example, the A601 can be quickly recharged within 5.5 hours by connecting two Flashfish 100W solar panels together with an adapter cable. If connecting only one single panel, the approximate recharging time is 8 hours. Recharging time may varies from different location, temperature, weather etc, the actual time may be different.