I just got a used IP-40 with two AC units running off a small 3500-watt generator and I am thinking about saving fuel by running only one AC through my Prosine 1800 inverter (2900 surge, 1800 continuous). With my 600 amp house battery bank, I could handle the load for a few hours. But I'm wondering will this cause any damage or issues with heat or surges? Any advice would be awesome.