Using power station as primary battery

[jcwilde1]

I have something I have been researching and have gotten myself confused.

I have a 2013 TM and it needs a new 12v battery. I own a lithium phosphate power station and I know I can plug it into to the shore power plug with an adapter and everything works.

But I was wondering if anyone has tried to use the power station as the primary battery. I like the idea of this because I could hook a solar panel into it as well as take it out and use it for other things.

My confusion is more about how it would connect. I know it can charge using a 12v cigarette port and it has a 25amp DC 12v out, but with an existing battery it uses the same positive and negative cables for both discharge and charging so not sure this could work.

If not I realize replacing the existing converter to a lithium compatible one isn't terribly hard, just trying to save a few $$ and postpone getting a new battery.