"25AH 51.2v LIFEPO4 Battery " Are you kidding? 25 amps?. But maybe I'm getting my Ohm's law since it's an odd voltage. But amps is amps. My $200 AGM that should last nearly a decade has 35 usable amps.
I am thinking not all amps are created equal. It also depends on the voltage.
It seems to me that what we care about ultimately is the watt-hour delivery. I think Watts = Volts x Amps.
A 50V 25AH battery can deliver 1250 watt-hr, while a 12V battery with 35 AH has only 420 watt-hr.
Tom