I have 2 BattleBorn and 700W Solar to charge them.
For my trailer, adding 2 GC batteries and a secure box would up my tongue weight way too much for my comfort. Instead of close to 200# on my tongue(Includes aluminum box), I have 60# of Battleborns mounted back from the tongue inside my trailer. Way less chance of my batteries getting stolen where they are now mounted.
The batteries charge way faster than FLA. They stay in bulk charge until they are completely charged.
You can keep them discharged with no ill affects. In fact, you want to store them slightly discharged.
They have very low internal resistance. No longer will you have low voltage alarms running your inverter like you do with FLA.
I installed them at the same time I installed my entire solar system. I will be talking the 30% tax credit which includes the cost of the batteries. My $925 Battleborns will be a net $647.50.