chiiler trailer Dc input

[kingc66l]

I am looking at setting up a portable chiller trailers internal size one about 2.5m2 and one about 9m2 for chilling drinks or meat, but was want then to be stand alone power source i.e Battery Dc input ,preferably or generator
Any ideas?? to big for Dc input??

[chemi-cool]

A long 1 phase cable will be better.

Dry ice?