Are Renogy 170Ah LI batteries as good an idea as they seem?

[Rlum]

Hi: I am looking to increase my battery bank from 400Ah to 900Ah. Want to run my air conditioner much longer. My project will be 10-12 months long. If you are interested. I will be selling my old lifepo batteries. I have four of them. Two are Life Blue about 13 months old at this time. The remaining two are Eco Smart and came as OEM from Pleasureway. They are about 4 plus years old. My PW is 2016 model. If I sold them today. I would ask $500 for the life blues and $250 for the eco smart batteries. They have been well cared for. I do not camp in cold weather. The life blue are inside the coach and eco smart are in a metal box outside. FYI