Sadly, not a great idea. The chargers in most of today's RVs tend to overcharge your battery after a while. I often think of the charger as an ox. It can do a LOT of work when needed, and it can back off and do less stringent tasks when needed. But because it is basically an ox, it is not very good at something delicate like stroking a bird's feather.
One way to handle the issue is plug the TM into the house for a few hours, once a week or so. Some of our members do that, and apparently it works. Of course you run the risk of either forgetting to plug it on, or forgetting to unplug it.
An easier way is to buy a "battery maintainer" such as a Battery Tender (
https://www.batterytender.com/battery-chargers). You just plug it in, leave it, and it does the job. I've used their smallest one (750 ma) for years with no issues. Some folks like to go slightly larger, and that is fine. There are several other brands that other member use, and they are good, too. The important thing is get a true battery maintainer, not a cheap "trickle charger".
Again, you can find a lot of info by using the Forum's search tool on a term like "maintainer".
Bill