IF the battery has a CCA rating it will not last for RVing you need to have a deep cycle battery... automotive batteries do not have thick enough plates. You will find you will have to replace it every year or two
2004 Chev Silverado Duramax optioned past the max. 2009 Jayco Eagle 308 RLS 765 watts of solar, 6-6 volt batteries (696 amp hour), 2000 watt (4000 surge) whole house inverter.
140 days boondocking in 2016
211/2015, 196/14, 247/13, 193/12