Feature 1 Scope of Application: MTTP solar charger controller with maximum power point target function is suitable for battery or pack solar charging and load charge control. 2 Advanced Technology: The MTTP solar charge controller adopts advanced charging technology with efficient and professional battery maintenance technology, possesses digital programming options, complete protection features and intuitive LCD display. 3 Multi Protection: This charger controller supports multiple protections, including overcharge, deep discharge, short circuit, open battery circuit, overtemperature temperature, battery overvoltage and overcurrent protection. 4 For These Batteries: This charger controller supports charging for these 4 batteries, acid batteries, including sealed, AGM, gel, immersed in water and user, lithium battery. 5 Wide Application: This charge controller is widely used in solar RVs, home systems and industrial site monitoring, etc., suitable for off grid solar systems with wide voltage.Item Type: Solar Charge ControllerMaterial: PCVoltage: 12V, 24V, 36V, 48V, 60VRated Discharge Current: 10A, 20A, 20A, 30A12V Float Voltage: 14. 2V (default adjustable) 12.0-15.0V12V Discharge Cut Off Voltage: 10.7V (default value adjustable) 9.0-11.5V12V Discharge Recovery Voltage: 12.5V (default, adjustable) 11.0-13.0V24V Float Voltage: 28.4V (recognition adjustable) 24.0-29. 0V24V Discharge Cut Off Voltage: 19. 0V (default adjustable) 18 0-22. 0V24V Salt Recovery Voltage: 22. 0V (default, adjustable) 22 0-26. 0V36V Float Voltage: 42.0V (default, adjustable) 36.0-45.0V36V Power Generation Shoe Stop Voltage: 30.0V (default, adjustable) 27.0-83.0V36V Discharge Recovery Voltage: 30.0V (default, adjustable) 36.0-42.0V48V Float Voltage: 56.0V (default, adjustable) 48.0-60.0V48V Discharge Cut Off Voltage: 40.0V (default, adjustable) 36.0-44.0V48V Discharge Recovery Voltage: 50.0V (default, adjustable) 48.0-56.0V60V Float Voltage: 71.0V (default, adjustable) 60.0-75. 0V60V Discharge Cut Off Voltage: 50.0V (default, adjustable) 45.0-55. 0V60V Discharge Recovery Voltage: 63.0V (default, adjustable) 60.0-70.0VStandby Current: Less than 10mAUSB Output: 50V 2A MaximumWorking Temperature: -10 to +60 Package List1 x Solar Charge Controller1 x ManualNoteIf it is not set, it cannot be charged with lithium.