Quattro 2 not charging over 2,4kW

Running Quattro 2 and 2x 300Ah 24v victron NG batteries. I have charge limit set at 120A in Quattro, but getting charge current max at around 70 amps.
At first I thought problem might be with generator so I connected quattro to grid, but still only pulling 2.4kW, is there some way to see what is limiting my charge current?

What voltage do you have on the batteries and what is the current voltage being requested by the batteries. If you have a GX device then go into the batteries menu in device list and down to parameters and this should give you the current CVL, charge voltage limit. Then compare that to the measured voltage, if they are the same then the batteries are limiting. Check you do not have voltage drop anywhere in your system between the Quattro and the batteries. Is the ambient temperature hot, especially around the Quattro, is the Quattro well ventilated, if it is too hot it will pull back the charge current. Is the ac input current limit set appropriately.

Hey, limit was due to weak AC setting. After turning it off it jumped to 3500W now I need to see if my generator can supply good enought power to also work without “Weak AC” on. Generator is rated over 5kW on single phase

Firmware 556 for inverters apparently has better generator handling. I do not have direct experience though.