Will this cause any problems: NO... Unless. (read on)
Will it result in faster recharge of the battery: It might, or might not depending on the charger and the converter.
(Unless) will this faster re-charge damage the battery: Perhaps, if it's too fast it will shorten overall battery life. (greater than 30% c/20)
What is 30% of C/20?
Let's take a rounded battery (G-27/29 and give it a capacity of 100 amp hours at the 20 hour rate. 30% would thus be 30 amps.
On many modern RV's the best way to charge is the on-board converter.. HOWEVER some RV's have older converters like the Magnetek line, Or even a modern one like the Parrallex 7300 In these cases a converter upgarde will benefit but so will an external charger when the battery is low.
