I cover my TT when in storage and use a 30 watt panel and weatherproof controller from WindyNation on top of the cover. Thirty-fifty watt solar panels aren't good for much except maintaining a charge in storage. I really dislike manufacturers that provide a small panel and call it a "solar system."
If you plan coverning and uncovering, and fold carefully, it makes the job easier.
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