OP,
Your linked Renogy manual seems short on Li battery information to me. It may be adequate for you. I'd want to better understand the Li charging.
1. Does it time out after 4 hours?
2. Or does it sense the charging voltage and stop charging when the current drops to the right amount? Apparently not since I didn't see any mention of a shunt since otherwise it could only detect house + battery amps.
3. What about low temperature charging restrictions?
And likely more questions if I dug deeper as I saw other information like an ignition wire to the charger - ie another wire from the TV to TT, etc.
