Of the small items you have connected and the fact you run the generator a few times a month, you should be okay. but to be safe, you could simply connect a small suitcase solar panel to your battery bank and it will trickle charge your battery when in storage.
2019 FR3 33DS Motorhome
650 Watts Solar, 400Ah LIFEPO4, 2000 Watt Inverter, 40A DC/DC Charger, SumoSprings, Roadmaster Steering Stabilizer, BlueOx Trac Bar, Truma AquaGo WH, NVIDIA Shield TV
2019 57:2020 20:2021 20[/B]