smkettner wrote:
Put 100 to 250 watts of solar on the TC roof and the issue might just go away.
Otherwise for real charging control from the alternator... use an inverter (powered by the truck 12v system) to drive the TC charging system.
Remember that the inverter first needs to be big enough in watts to run the charger's VA draw. EG a 35amp Vector charger wants 600w so a useful charger will need say a 1000w inverter. Usual inverter rule applies to keep its wires to truck system short and fat. But not so short the inverter is into the engine compartment or sits on the fender or the inverter will get too hot and shut itself off. Let it hang down the fender away from engine heat.
Next, your truck's 12v system needs to run that without the truck's own voltage sagging below 13.8. You can do more with that if you turn off the climate control etc! :) Anyway, you find the charging amps limit real quick when you see the truck's voltage needle swing down to the left and you then have to go with fewer charging amps until you find out what the truck's system can handle.
BTW I found no difference revving the engine from just leaving it at idle, but I gather there are differences between trucks on that.
