Cynic wrote:
snip
You can buy 12V fridges, freezers and microwave ovens for boats and
caravans, but they are a heck of a price! Small 12V kettles are also
available. You can buy PC PSUs that run from 12V - again many times
the price of the equivalent mains units.


Surely the PC is the easy part - there are car adaptors for most laptops.

Andy