How many of us are there? Owners of Dodge based RV's?

Schumacher is a brand I prefer and trust.

The SC1 is rated for 0.75 amps at 12 volts output. It's more a maintainer rather than a charger. At that rate, it could take a day or more to fully recharge a battery.

Because you already have it, it's worth using until you can get a more powerful charger/maintainer.

P.S. Excellent picture ... provided what I needed to look up specifications.