Hi and welcome to the forum.
Yes. Using an adapter, you'll have to plug in to your 30 (or 50) amp trailer plug and have your main and converter switches on. If you check with a voltmeter, you should measure around 13.5-13.9 volts at the battery.
Sherm & Terry w/rescues Steve (std Poodle) & Eydie (min Schnauzer)
2015 Jay Flight 27RLS (Camped: 102 nights 2015, 90 nights 2016)
2006 Ford F350 6.0 PSD, Lariat, 4WD, CC, LB, SRW, auto., Camper pkg.