20 Amp. Dual Battery Solar Controller

Charging of two independent battery banks:The owner can set charging priority between the two battery banks in steps of 10%. For example, you can decide that 90% of the solar current should go to the house battery and 10% to the start battery.  When one battery bank is full all the power is redirected to the other battery.Battery optimized charging algorithms:• Advanced PWM four stage algorithm with bulk, absorption, float and boost (equalization) charging.• Charging voltages are optimized for the selected lead-acid battery type (liquid, sealed or gel).• Selectable PWM charging frequency (25, 50 or 100Hz)• Temperature compensated charging using either a built-in temperature sensor or an optional remote sensor. Specifications - Controller: For 12V and 24V systems (nominal voltage), automatically sensed. Charging voltages given below should be multiplied by 2 for 24V operation. Max solar current 10 A  for smaller panels or 20 A  for larger panels (greater than 150 watts) Absorption vo