So, Cody said he heard this described as being 1.5 D3100. With Nathan explaining the "7500" in the name referring to the amount of watts it can provide power for, and the D3100 being good for 5000 watts, it would prove that to be true. But what's not adding up to me is the numbers.
D7500 ~ D3100 % More than a D3100
Watts 7500 ~ 5000 40
MSRP $849.99 ~ $549.99 54
Retail $559.99 ~ 369.99 51
Weight Lbs. 99.8 ~ 75.4 32
Size (in³) 998 ~ 746 34
MAX Amps 6000 ~ 5000 20
Ah 140 ~ 110 27
RC 280 ~ 237min. 18
CA 1700 ~ 1360A 25
It looks like when it comes to price, it is 1.5 D3100. But with all the other numbers, it isn't. I'm not at all trying to bring this product down or say it isn't good. I was tempted to get a few of these in place of my D3100's, but the numbers for performance didn't seem to match or outweigh the cost, size and weight. To me, the numbers don't lie and they say the D3100 is a better choice. But I don't know, maybe there's something more to it, being that it is a bigger battery? If there's more to it than just the numbers, then I'd like to know.