battery power

I have a Philips Respironics Remstar SE (system one) machine. Can this cpap model run on 12 volt marine battery?

I don't have this machine, but was tempted:
https://www.cpap.com/productpage/respir ... atures-tab
https://www.cpap.com/productpage/respir ... -cord.html

Yes, this can run from 12V but there are several different power cords. I think yours is this one:
https://www.cpap.com/productpage/dc-pow ... ations-tab
but you should find the exact model number on the bottom (DS220?) and call cpap.com to ensure a proper match.

BTW, without the humidifier any marine deep cycle battery will probably run this for several nights, maybe even a week. With the humidifier more than two nights is a stretch.