I really do not know. There is a BMS in there (Battery Management System) that will balance the cells, but I don't know how good it is. And the regulator of this old Ducati isn't the most advanced in the world. OTOH, I have a generic LiFePo4 regulator laying in a box, I intended it for the Supermono, but that bike is still on the bench. I presume that regulator should ensure the Noco battery's charging current is free of too much rippple etc
Perhaps the Hawker battery is a safer bet, although it is 6kg instead of 1.5?
4.5kg on the Duc is not a lot, but I am, as always, a fan of light weight and quick steering on a streetbike. As the Duc has a slow steering, I could at least go for light as possible bike
I know the Hawker will last another 8-10 years, while a Lithium battery ca be destroyed overnight if abused the right way...