With my 2 golf cart batteries and my pd 9145 converter it will not go straight to 14.4 volts because it can't. full output current is being demanded when the batteries are drained below 70 percent, and the converter is charging at max output for my model (45 amps). Even if I press the boost button, the voltage only slowly creeps up over time as the current demand decreases. Ive seen my output as low as 12.8 volts or so on the converter when it is trying to control current output to max 45 amps with very low batteries. Wait a bit and see, and I bet you will find that the voltage will indeed slowly go up to 14.4v as the battery charge demand gets lower.
