Hi,
I noticed that one of the bare copper wires is very close to the neutral bussbar, and should have a little more separation, The bare copper should not be touching the white bussbar, and the wires must not be connected to the wrong bussbar.
Is the 30 amp breaker going to a inverter? That is how many RV's are wired, with 30 amps going to the inverter, where either two 15 amp or one 15 and one 20 amp circuit breakers feed inverter power to certain circuits in the RV.
The converter/charger normally will only use 1-4 amps, so is not a significant load on any circuit breaker.
Good luck!
Fred.