MPPT Charge Controller 40A 30A 20A 10A 24V 12V Auto - Max 100VDC Input LCD Backlight Solar Charge for Vented Sealed Gel NiCd Lithium Battery MPPT1 series products adopts DC/DC converting technology and MCU technology. It can adjust the working point of the solar array intelligently to make the solar array realize the maximum power output.When the external condition changes,MPPT controller bases on the MCU theory to track the maximum working point of solar panels,this can improve the using efficiency of the solar panels and decrease the solar generating costs.Compared with PWM solar charge controllers,MPPT improve the output efficiency of solar panel by 5% to 30%(the output increasing proportion affected by the factors such as the attribute of solar panels,environmental temperature and lighting conditions). There are optional 10A 20A 30A 40A model Model Battery Voltage Max solar panel input 10A 12V 100V 120W 24V 100V 240W 20A 12V 100V 240W 24V 100V 480W 30A 12V 100V 360W 24V 100V 720W 40A 12V 100V 500W 24V 100V 1000W Features: 1. Self-made algorithm,fast and accurate lock MPPT point,within 10 seconds,accuracy is greater than 99%,MPPT peck conversion efficiency 98%. 2. Four-stage charging:high current charing at MPPT points,float charging,absorption charging,equalized charging. 3.Used for lead-acid batteries/Gel batteries. Can be used for lithium battery(LiFePO4 battery,ternary lithium battery),when the lithium battery is low voltage protected,the battery can be activated. 4. External temperature sensor,accurate temperature compensation. 5. PV input maximum voltage:100V. 6. The system voltage is 12V/24V automatically identification.