With lead acid, you wouldn't likely get to 100% in 30 mins. The last 15% or so to full is less efficient and slower than at lower states of charge. You can force it to a degree with higher charging voltage, but it's hard on the battery.
Off-grid. Main daytime system ~4kw panels into 2xMNClassic150 370ah 48v bank 2xOutback 3548 inverter 120v + 240v autotransformer Night system ~1kw panels into 1xMNClassic150 700ah 12v bank morningstar 300w inverter
Off-grid. Main daytime system ~4kw panels into 2xMNClassic150 370ah 48v bank 2xOutback 3548 inverter 120v + 240v autotransformer Night system ~1kw panels into 1xMNClassic150 700ah 12v bank morningstar 300w inverter