For the battery most specs I could find is below:
Chins 300ah LiFePO4:
Rated Capacity (0.2C): 300Ah / 3840Wh
Cycle life: 2000+ cycles at 80% discharge depth
Rated voltage: 12.8V
Charge voltage: 14.2 - 14.6V
Depth of Discharge (DoD): 100%
Standard charge current: 60A
Charging time: Approximately...