Auto Solar Controllers 10A 20A 30A 40A 50A 60A LCD MPPT Solar Panel Battery Regulator Charge Controller PWM With Dual USB With 5V/2A Output For Home Description This Solar Battery Charge Controller automatically manages and regulates the voltage and current going into the battery from the solar panel, and it's designed with short-circuit protection, open-circuit protection, reverse polarity protection and over-load protection in order to ensure that the batteries are not overcharged the power doesnt run backwards to the solar panels overnight and drain the batteries. Solar power is renweable for durable and eco-friendly use. It comes with USB ports to enable access of charging for your phone and other devices with usb port. Great power supply charger for home use. Feature - This controller can only be applicable for lead-acid batteries. - Solar Charge Controller regulates the voltage from solar panels going to battery. - Build-in industrial master chip to control the charger and discharge process.Parameters are adjustable. Prolong the battery life cycle and keep the load work well. - Professional 3-stage PWM charge management, all necessary protections equipped. Short-circuit protection, open-circuit protection, reverse polarity protection - Dual USB with 5V/2A provides charging to universal mobile phone devices.LCD screen with backlight function clearly indicates status and data. - Great Heat Dissipation. Dual MOS reverse current protections, low calorific value. - Easy to install and operate, suitable for home, industrial and commercial solar energy system application. Specifications - Color: Color: Blue - Material: Plastic - Size: Approx.13.3 x 7 x 3.5 cm/ 5.24 x 2.76 x 1.38 inch (LxWxH) - Battery Voltage: 12V/ 24V (Auto recognition) - Charge Current: 10/20/30/40/50/60A - Operating Temperature: -35 ~ +60 - Storage Temperature: -35 ~ +60 - Application: Home, Industrial, Commercial - Self consuming: 10mA - Over charge Protection: 14.4V/28.8V - Over charge Floating charge: 13.7V/27.4V - Charge recover voltage: 12.6V/25.2V - Over discharge Protection: 10.7V/21.4V - Over discharge Recover: 12.6V/25.2V - USB output: 5V/2A Note: Before installing for the first time, make sure that the battery has enough voltage to enable the controller to recognize the battery type.The regulator is only suitable for acid batteries: OPEN, AGM, GEL. It does not apply to Ni-MH, Li-ion or other batteries.Only suitable for regulating solar modules.Connect the battery to the recharge regulator-positive and negative. If a 12 V battery is detected, it will display 1 and if a 24V battery is detected, it will display 2. Connect the photovoltaic module to the regulator-plus and minus, and then to the recharging regulator-plus and minus. The reverse order applies when uninstalling. Improper sequence will damage the controller. There are optional 10A 20A 30A 40A 50A 60Amodel 10A: if your battery is 12V ,the max solar panel input is 25V 120W if your battery is 24V ,the max solar panel input is 50V 240W 20A: If your battery is 12V, the max solar panel input is 25V 240W if your battery is 24V, the max solar panel input is 50V 480W 30A: if your battery is 12V ,the max solar panel input is 25V 360W if your battery is 24V ,the max solar panel input is 50V 720W