When it comes to storage batteries, you need a good battery not a cheap big box store battery. Trojan batteries have lead the market for a reason when it comes to OffTheGrid applications. The T-105 has earned the trust of RV campers for over 10 years, but Lithium Iron Phosphate (LifePO4) is beginning to dominate the market for several reasons.
Most RV batteries can't make it through the night just trying to run the furnace, a water pump and some lights, the biggest reason for this is they never get properly charged because the converters/built in battery chargers are not capable of reaching the battery manufactures required charging specs of 14.8v for most 12v flooded batteries or two Trojan T-105 6v batteries in series to make 12v. You need to check your specific battery on the manufactures website and see what the required absorb voltage is. A large percentage of them max out at 14.4 volts for a short period of time, then stay in float mode at 13.4 or so the entire time you're plugged into shore power or running that 7500 watt generator wasting fuel and pissing off your neighbors. So in short, you're slowing destroying your batteries if your rigs not on solar, and can reach the required voltage without a single sound.