Solar charge controller, Capacity : One phone charging at a time

"the solar  charge controller fangpusun solarix 2401 and 4401 are optimally suited for  inverter systems. The controller combines basic solar charger function with a  40 a high-performance charge controller. It is available as 12v24v and 48v  system. This makes the solar charge controller very cost effective.  the load  current is limited to 10 a. The charging processes are based on the voltage  level, which can be individually set with the help of four buttons behind the  front casing.