Typically, they don’t offer the maximum amount of RV energy as coast energy does, but that actually depends upon the dimensions of the generator.
Generators are rated in watts as opposed to amps. a 1000-watt generator is about suitable for a little RV or you don’t have to run major systems like air cooling. a 3500-watt generator is often the next step-up and may run many RV systems of all RVs.
Overdrawing a generator isn’t since dangerous as overdrawing shore energy. If you attempt to overdraw a generator, you just won’t get enough capacity to make everything run correctly. Overloading your generator may harm some devices, though it is really not most most most likely.
Some motorhomes have actually an integrated generator, that will be split through the primary motor and often based in a bay that is outside. These could be particularly handy since they are insulated and so not so loud.