My Carrier 13.5 BTU roof A/C demands 11.2 amps with the compressor and fan operating. With only the fan measured 4.4 amps.
Both the interior and exterior air temps at 74 degrees, 90% humidity and scattered light rain. Coach is in the driveway and I don't run the A/C unless I'm in it. Measurements were a few moments after initial start surge. Test equipment used was a Simpson model HE-95 clamp on amp meter. Last calibration is unknown.
Suspect without a freon charge you will see an decrease below what a functioning system will demand. Split the difference and call it 7.8 amps.