I've got an AC300 and 4x B300s. This will often live out of the back of my covered truck when 'camping' out in the desert. As I look at charging specs on the AC300 and the individual B300s, I had a thought. If the B300s will take up to 60v @10a, is there any reason that I can't use dc-dc step-up converters to push more power into the 4x B300s as opposed to 4x 12v @10a? Napkin math: 4x B300 x10a input each x4 to step up from 12v to 48v x1.06 to account for 94% efficiency of converters = ~170amps.
I get that one can overheat alternators pulling them hard at idle, but I have quite a bit of capacity. My truck has 2 alts rated for a total of just under 400a from the factory. The truck will pull up RPM to deal with the heat of high power draw at low RPM.
The reason I am considering this is that it will take ~24 hours to charge these B300s even with each of them on their own 12v leads to the truck charging system running at 10A. I have the capacity, why not? The other option is to run a huge inverter and plug the AC300 into that and let it charge the B300s. Sure, it might work, but it is hilariously inefficient.
I get that one can overheat alternators pulling them hard at idle, but I have quite a bit of capacity. My truck has 2 alts rated for a total of just under 400a from the factory. The truck will pull up RPM to deal with the heat of high power draw at low RPM.
The reason I am considering this is that it will take ~24 hours to charge these B300s even with each of them on their own 12v leads to the truck charging system running at 10A. I have the capacity, why not? The other option is to run a huge inverter and plug the AC300 into that and let it charge the B300s. Sure, it might work, but it is hilariously inefficient.
