Cable size for 1500 W electrical windlass

[Goudurix]

Hi ,
I'm about to install a QUICK 1500 W electrical windlass on a 37 ft Jeanneau.
The specs state 150A current draw but advise to install a 100 Amp magnetic jumper.
I have a 330 Ah gel battery park, and need 9,2 metres of cable run from battery switch and battery monitor shunt (one way so 18,4 m total both ways).
The supplier says for that length I will need minimum 50 mm2 cable (1/0 AWG).
Would this be OK for that length? 70mm2/ 2/0 AWG would become very unpractical and expensive.

Thanks for your advice,

Jan
ON3ZTT
SY Goudurix