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 Maximum Charge Current: 3A(default） Quiescent Current: About 1.8mA High PWM Switching Frequency: 300KHz Overcurrent protection Automatic Conditioning of Deeply Discharged Batteries Automatic Recharge Charger Status Indication Battery Overvoltage Protection Operating Ambient Temperature －40℃ to ＋85℃ Package List 1 x MPPT Solar Controller Charging Module