I was thinking of that one as my next step up, but wasn't sure how to power the thing. 80A out means at least 80A in, more to avoid stressing the PSU, so 90A+ PSU at 18V+ to get max wattage. I haven't found such an animal yet.
you have to look at wattage out /wattage in, not amps. If you are charging at 14.4v or 22.2v - you will have more amps in than out.
But yeah, PSU's over 1050w get pricy. I think I would be OK with my 1050w PSU, I just could not max out all 4 channels at the same time. But, also, seeing as I have one of the 2-channel chargers already, it would be better (for me) to get a second 2-channel. Run them both off the same PSU, just watch the load...
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