inverter or inverter/charger

Thanks for that detailed response and the others too of course. Sounds like I'll be upgrading the on board WFCO charger so's to get a forced 14.4+ charge to help get me from 50 to 90 percent quicker with a generator. I have 2 260amp 6v's and have a somewhat unconventional setup where my shore cord either plugs into either shore power, an invertor (currently 300w pure or 1500w modified), or a generator. (I know the switch charger off and frig to gas only routine) I'm gonna keep it simple and just replace the 1500w modified with probably the KISAE 2000w pure sine inverter only....unless there's a better 2000w pure sine someone might suggest. Haven't won the lottery so can't justify a Magnum. Thanks