Battery draining faster than charging

[Kevinandvicki]

Hi all. I have a 2007 2720. I am plugged into a 30 amp at rv park. Prior to trip, I was plugged in at home. Battery was charging up to 3/4. Here at park, I am using the fan and lights. last night, the battery was down to almost zero. Lights were low and heater wouldn’t turned on. I turned off all lights and fans, and this morning, battery is currently charged up to half and hopefully rising. All AC outlets are working fine. The battery is an Interstate less than a year old. I rarely use the trailer unplugged. Any idea why my battery seems to be draining faster than it is charging.

Additional information. I removed the original fridge and installed a mini fridge freezer. 110. Also, removed the stove and installed a mini freezer. Also 110. Am I pulling too much power so there isn’t anything left for the battery?