2 aircraft ordered - before using these solar chargers, I tested their behavior and reflexes of Operation - connected to a 110 W monocrystalline panel and a battery of 100 Ah, the charge is correct and the transition shadow / sun is correctly. But when the solar panel delivers no current, low current battery back to the panel. A good solar panel has a protection diode; but that is not the case for all panels. In the absence of diodes, the battery discharges overnight in the panel ... provide a quality panel or a pair of powerful diodes (eg 400 watts) on the power cable to prevent discharge. Compared to a brand charger (12 times more expensive to buy), the stages of cutting and care as well as hysteresis are similar - the charging current is not altered by the regulator - in conclusion, it s 'is a basic charge controller which has a very adjusted price but needs some skills has to check that the circuit is operating.
