Features: <br> <br>Automatic identification system voltage, 12/24V auto recognition. <br>Humanized LCD displaying and double button operation of man-machine interface. <br>Completed technical data for setup and modify. <br>The load control mode can be selected, the timer function can be reset for street light at night. <br>Discharge capacity control. <br>Working storage function: record the total run time of system, record timers of error during running time, record times of full charged battery. <br>Reliable over voltage protection, short circuit protection, over load protection, overcharge protection, over-discharge protection. <br>Accurate temperature compensation, correcting the charging and discharging voltage automatically, improving the battery lifetime. <br>Roundly reverse connected protection. <br>Solar panels, battery, solar charge controller positive poles are all connected together, adopting negative MOSFET in circuit. <br> <br>Specifications: <br>Current: 30A, 50A, 70A (optional) <br>Rated Voltage: 12/24V <br>USB Output: 2.4A *2 <br>Over Charge Current(V): 13.7V/*2 24V <br>Over Discharge Current(V): 10.5-11V/*2 24V <br>Temperature Compensation: -3mv/℃/cell <br>Empty Load Wastage: <45mA <br>Loop Voltage Drop: <200mv <br>Display: LCD Display <br>Charging Type: MPPT <br>Waterproof Grade: IP32 <br>Material: Plastic <br>Color: Black + Orange <br>Size: 17.5 * 14 * 4cm/6.9 * 5.5 * 1.6in(30A), 21 * 19.2 * 5.5cm/8.3 * 7.6 * 2.2in(50A), 22.8 * 20 * 5.5cm/9 * 7.9 * 2.2in(70A) <br>Suitable for automobiles and motorcycles,or small household appliances. <br>Package Weight: 480g-1284g <br> <br>Package List: <br>1 * Solar Charge Controller <br>1 * User Manual <br> <br>Notes: <br>1. The function of controller is to protect voltage overshoot and overplay. <br>2. When the battery voltage is too low, the controller stops the output; after the solar panel is charged, the cell recovers to 12.6V. <br>3. 12.6V is the recovery discharge voltage. <br>4. The normal voltage of the controller is 10.7V to 13.7V. These two voltage fluctuations can be set manually. <br>If you have trouble in use, try adjusting the float voltage to 13.7V: <br>First, you need to press the MCU control button for about 3-4 seconds, and then there will be a management interface on the screen. <br>Second, you must press the add button on the screen until the voltage reaches 13.7V. <br>Finally, you need to press the MCU control button again, which will save the controller record data when the display does not flicker.<br>1、Automatic identification system voltage, 12/24V auto recognition <br>2、Humanized LCD displaying and double button operation of man?machine interface <br>3、Reliable over voltage protection, short circuit protection, over load protection, overcharge protection, over?discharge protection <br>4、Accurate temperature compensation, correcting the charging and discharging voltage automatically, improving the battery lifetime <br>5、Solar panels, battery, solar charge controller positive poles are all connected together, adopting negative MOSFET in circuit.