Specifications Maximum Current 20A30A40A50ARated Voltage12V 24VMaximum PV input power260W 12V400W 12V550W 12V660W 12V520W 24V800W 24V1100W 24V1320W 24VIP GradeIP32Conversion Efficiency 98 MPPT Tracking Efficiency99 Operating Temperature 35ºC 45ºCTemperature Compensation Coefficient3mv ºC 2V Default Lithium Battery Features no Temperature CompensationCommunication modeTTL Serial CommunicationAltitude≤ 3000 metersWeight600g700g800g900gSize150 105 6 61 5mm150 105 6 67 5mm183 127 65 5mm183 127 69 5mmFeatures ◆ PowerCatcher MPPT technology allows the controller to track the MPP of solar panels even in a complex environment Compared with the traditional MPPT tracking technology it boasts faster response speed and higher tracking efficiency ◆ A built in MPPT algorithm can significantly increase energy utilization efficiency of the photovoltaic system which is about 15 to 20 higher than traditional PWM charging ◆ It provides an active charging voltage regulation feature At battery open circuit or lithium battery BMS overcharge protection the controller battery terminal will output the rated charging voltage value ◆ MPPT tracking efficiency is up to 99 9 ◆Due to an advanced digital power technology the circuit energy conversion efficiency is as high as 98 ◆Available in multiple battery types and support charging procedures of various types of batteries such as lithium battery colloidal battery sealed battery vented battery lithium battery etc ◆ A current limited