My inverter fried itself (burnt main circuit board). I took the inverter out; for the first long trip, I just used a battery charger connected to the inverter-to-battery wires to charge batteries. Last spring I bought a PD 65-amp converter and wired it into the battery circuit. It worked fine on last summer's trip -- kept the batteries charged and supplied plenty of DC power for fridge, lights, etc. I never used the inverter anyway, so I may never replace it.
I connected the converter output to the battery cables formerly used by the inverter, and covered the connections with shrink wrap tubing. I may at some point install an inverter just in case I need AC while boondocking. In my limited boondocking experience, I've just run the generator all night if I needed AC.