Features: -- Dual USB port: USB output: 5V/3A max, dual USB supply power to two mobile phones, tablet PCs, and other devices. -- Solar battery: Solar charge controller just works with lead-acid batteries: OPEN, AGM, GEL, not for nickel hydride, lithium, or other batteries. -- Multiple protection: Build-in short-circuit protection, open-circuit protection, overcurrent protection, overload protection, safety for using. -- Widely use: Suitable for home, industrial, commercial, workshop etc. -- Easy to install and operate: Clearly indicate the status and data, can be conveniently switched modes and parameter configuration. -- LCD display: Large LCD display, easy to read the data. -- Function: Help to prolong the battery life cycle and keep the load work well. -- Application: Suitable for small solar energy system Features: 1.Build-in industrial micro controller. 2.Big LCD display,all adjustable parameter. 3.Fully 4-stage PWM charge management. 4.Build-in short-circuit protection,open-circuit protection,reverse protection,over-load protection. 5.Dual mosfet Reverse current protection ,low heat production. Connection: 1.Connect the battery to the charge regulator - plus and minus. 2.Connect the photovoltaic module to the regulator - plus and minus. 3. Connect the consumer to the charge regulator - plus and minus. The reverse order applies when deinstalling! An improper sequence order can damage the controller! Specification Voltage: DC 12V/24V Rated charge current: 10A / 20A /30A Floating charge voltage: 13.7V (adjustable) End-off voltage: 10.7V (adjustable) Discharge recover voltage: 12.6V (adjustable) USB output: 5V/3A Standby current: