Good to know about the DC voltage.
I had a camper for 15 years that I found out after it was totaled that the battery con/charger put our 18 volts. That explains why the lights got so much brighter. I had 3, then 2 lead acid marine batts on it. about 7 years for each set. I would never have put 18 on batteries all the time, but they lasted a normal life and never blew up.
Old days your house was 110 volts. It got upped to 120 volts at some point for some reason. Appliances and things run fine on either 110 or 120, so correct that 130 should not harm it.