... -B04400Rated capacity(W)2404804809609601920Controller inputRated voltage(VDC)122448Rated charge controller(A)204020402040Solar panel inputDC voltage range(VDC)10- ... temperature of the fan()55The voltage drop between solar panel and PV battery(VDC)0.7The voltage ... %, UncondensingProtection function,,Perfect protection for reserve charge at night, over-charge and opening circuit protection of the battery ...