yep suppose you are correct the majority of things funnily enough convert from 240v down to 12v or less but will only run on 240v seems a silly way unless you happen to own or run the national gridNosha said:Again the short answer is YES!
But as the workings of most TV & F/V boxes run at a LOT less than 240v you are not being very efficient by converting up from 12v DC to 240v AC and then your device is converting back down again.
Far better if you can to use 12v items, most small LCD TV's run on a 12v power supply up to about 15", certainly when I bought mine there was quiet a choice; but when you got to 17" then the mains lead went straight into the set.
See my other note, Asda Duraband F/V box £19.99 AND runs on 12v DC and onlt draws 0.5amp!!!
Sorry, Jess the last post was directed your way
Simple answer is yes.
I have a small inverter, 150w, that I run a telly and freeview box. I also have a 2000w invertor that can be used for microwave etc. Why 2? Well the standing current for the 2000w is 1 amp doing nothing and therefore a big drain.
The amout of time you will be able to view is reflected on the size of the leisure battery. Hopefully some expert will come along and give you an idea how much. I have 2 X 110A/hr batteries and have ample capacity.
Hope this helps