AVION Travel Trailers

This may be a simple question and I'm not naive on the topic.

So, it seems that my 12V battery is dead (reading somewhere in the 6V range)
I haven't looked at the cells themselves but even if I'm missing distilled water I don't have anywhere to get it right now and I'll have to wait till after pandemic times to go out and purchase a fresh battery.

I did get a new converter in this week but was unsure if it 'requires' a battery is order to provide power.
In truth, I don't have the fridge or other large devices connected anyway. I've begun installing some 12V LEDs and would basically like to light the trailer so I can work in it in the evenings.

If the converter isn't usable without the battery its not a huge deal I could use portable LED work lights if need be.

Thanks.

I know Boondocker converters say they don’t require a battery, whereas I believe Progressive Dynamics do. That said, if just running lights, then I doubt the presence of a battery would make much of a difference. What type of converter do you have?

Just got this in

https://www.iotaengineering.com/pplib/dls55spec.pdf

grab a DVM, plug it in to 120VAC and see what you get for output.