Solar controller MPPT Lumiax MT4010-BT, 12-24V/40A, bluetooth

Product detailed description

The MPPT controller uses an internal inverter to adjust the V-A characteristic of the current source-solar panel to be optimal for battery charging. Thus, it can utilize the energy from the solar panels much better than a PWM controller, which regulates charging only by pulse limiting the direct connection between the solar panel and the battery, where the pulse width is proportional to the state of the battery being charged. In other words, the MPPT controller can generate the ideal voltage and current to charge the battery from a higher voltage and lower current source. For example, from 30V and 5A it will generate about 15V and 10A. The V-A conversion efficiency of the characteristic is usually above 95%, so losses are minimal and the regulators can usually be adapted to different types of batteries to provide the most optimal charging.


Technical parameters:

- system voltage 12-24V, applicable batteries: Pb AGM, Pb AGM GEL, Pb liquid, LiFePO4
- max. power of PV panels: 520W (1040W-24V) for maximum use of the controller. When using more powerful panels, the full power will not be used, but the function of the fegulator will be preserved without damage.
- max. PV panel voltage: 100V (-20°C), 90V (+25°C)
- max. charging current: 40A
- self-consumption: <8mA(12V),<12mA(24V)
- 4-stage Pb battery charging (CC, CV-boost, CV-float, CV-equalize)
- CC = charging with full power of PV panels until the set value of the end of charging (CV-boost)
- CV-boost = charging for 1-2h after reaching clamp voltage 14-15V (adjustable)
- CV-equalize= charging with increased voltage to mix the liquid electrolyte-optional only for batteries with liquid electrolyte
- CV-float = charging with a holding voltage of 13.5-13.8V (adjustable)
- choice of battery type: liquid dielectric, AGM, AGM GEL, LiFePO4
- LCD display for setting and monitoring operating parameters
- temperature compensation: -4.17mV/K per cell during boost+equal -3.33mV/K per cell during float (maintenance) charging
- iP32 protection
- RS485 interface
- operating temperature: -25°C~55°C
- dimensions: 189×255×69mm/1.8kg

Please note: for proper Bluetooth pairing, the battery must be charged to at least 12.5V. Solar Life app (skywise).