Just put a generator in and looking to put another deep cycle battery in it.

What size generator and will it pull the Redwood a/c?

The generator is a 3600W lifan. It weighs 124lb and runs one ac and microwave same time.
The gen. Slide out to service it. I put a 12v fan in the bottom floor of pan to draw in air through the motor and out at bottom with the ex. Pipe. Val