profdant139 pwm controllers do not drop the voltage. They operate at what ever the battery voltage is. As the battery gets fuller the control "pulses" the power, with shorter "on" time and greater "off" time. PWM does include a one way diode to prevent the panels from drawing power from the battery bank.
110 amp-hour battery flooded? Then with this panel under PERFECT conditions 5.5 amps are going into the battery. But that only happens around solar noon.
I would be comfortable doing direct connection to the battery with an on/off switch between the panel and the bank.
