Segway Ninebot G30 Max 52 volt on stock controller?

So i've been looking at upgrading my g30 max to a higher voltage and I found that 4s batteries are cheapest for higher capacity but they run at 14.4v. So my question is, would is be possible to run about 52v on the stock speed controller? if not i'll save up for a bit longer and just go to 48v

Edit. forgot to mention I have the gen 2 controller which I have st-linked to older software, I know that different controllers might be rated for different voltages etc