Hi I just started using a CPAP machine recently but I'm due to attend a couple of festivals this summer and I'm not sure how I'll be able to power it.
I had thought about using a car battery and I asked the manufacturer but they don't recommend it because they are 12v and my machine needs 24v.
I don't want to do this wrong and break an expensive device. Any suggestions?
It's a Sefam s-box.
Thanks
J