Power Usage Kenwood ™-V71

I was trying to figure out how long my V71 would run on battery now that hurricane season is coming up.   The battery not that large and the longest I have run to date has been about 4 hours.  In trying to figure out how long it should run, I need to know the power draw is.    It is not quite as simple as it sounds since it has different draws depending on what you are doing.  So this is the table I created:

Monitoring - No Fan         .54A   6.9w
Receiving traffic               .54A   6.9w
Transmit High Power        7.0A  90.0w
Transmit Medium Power   3.7A  50.0w
Transmit Low Power         2.7A  34.0w
Monitoring w/Fan on         .61A   7.7w