Features 1、Suitable for 1-1000AH 12V Lead-Acid Battery charger. 2、Suitable for 12V Solar panels Max power point voltage(V MMPT) is 17.5-18.5V. 3、Used in car battery charging, solar panel charging, lead acid battery charger, electric bicycle charger, solar UPS, portable industrial and medical equipment, independent battery charger. 4、Photovoltaic battery maximum power point tracking (MPPT). 5、Overcurrent protection, battery overvoltage protection, charger status indication. Specification Item Type: MPPT Solar Controller Charging Module Power supply voltage: 12V Solar panels or 18-28VDC power supply Over Charge Voltage: 14.8V Float Charge Voltage: 13.55V Maximum Charge Current: 3A(default） Quiescent Current: About 1.8mA High PWM Switching Frequency: 300KHz Fixed Over-Charge Voltage Overcurrent protection Automatic Conditioning of Deeply Discharged Batteries Automatic Recharge Charger Status Indication Battery Overvoltage Protection Operating Ambient Temperature －40℃ to ＋85℃ Optional Type: With Terminal, Without Terminal Package List 1 x MPPT Solar Controller Charging Module