Albert, This is amazing! 1) Why do you even need to add heat sinks to the chargers? Can’t you just keep them separated by a few inches? I assume they were designed for use without a heat sink. Is that correct? 2) About using the Prius’ fan: why do you need a special wiring harness? Can’t you just tap into the two wires that go to the fan and give it 12 volts? Would there be a problem with the power going upstream of the fan? If so, could you just add a toggle switch to the positive wire upstream of where are you tap in to deactivate it? 3) Is the input voltage 120VAC? I noticed there’s a big range that can be used for those chargers. 4) As you monitor your battery bank voltage, at what point do you turn off the chargers? GREAT information!! Those chargers are WAY cheaper than any option I’ve seen so far! They are the perfect amperage also! Thank you so much for all of this great information!