Are you aware the DC-DC converter is limited to 70A output? Are you aware that the usable storage of the HV battery is almost exactly the same as the stock AGM 12V? This assume that the battery is brand new. Most packs are substantially below rated.
These are the numbers you want. All A/C manufacturers publish them.
LRA - Locked Rotor Amps: The current you can expect under starting conditions when you apply full voltage. It occurs instantly during start up.
RLA - Rated Load Amps: The maximum current a compressor should draw under any operating conditions. Often mistakenly called running load amps which leads people to believe, incorrectly, that the compressor should always pull these amps.
FLA - Full Load Amps: Changed in 1976 to "RLA - Rated Load Amps".
Here is the label on the A/C atop my RV trailer with these specifications...