20ASolar Charge Controller with LCD display USB and 12V ports

Solar charge controller is an essential part of nearly all PV systems that charge batteries, to keep your batteries properly charged and discharged, and safe for the long term. 
The solar charge controller is very intelligent with multiple protections against short circuit, over charge/discharge, overload, etc

Big LCD display, auto dimming back light LCD
Adjustable settings

2*USB ports, 2*DC12V pots
On/off output switch
temperature compensation
Battery power display

12V/24V auto, 10A/20A available

PWM charge mode