A panel that small could, or could try, to keep either the house or chassis batteries charged. Identify what batteries the panel are hooked to, the panel’s max output and if it’s enough. You need a “plan” for whichever batteries are not hooked to this panel. My 30 watt panel is more than enough to keep the house batteries maintained during storage and while covered.
Winnebago 2101DS TT & 2022 Chevy Silverado 1500 LTZ Z71, WindyNation 300 watt solar-Lossigy 200 AH Lithium battery. Prefer boondocking, USFS, COE, BLM, NPS, TVA, state camps. Bicyclist. 14 yr. Army -11B40 then 11A - (MOS 1542 & 1560) IOBC & IOAC grad