I'm looking to upgrade from the original Inverter to a modern Converter Pure Sine wave charger.<br/>I have flooded Batteries (1-8D house - new ~250AH) and 2 paralleled Eng batts (old but work OK).<br/>I want to make sure I can maximize the battery life as well as upgrade to bigger/better batts in the future.<br/>I have an appt with Oregon Motorcoach in Eugene for early next month....