I was reading Auto Express a couple of weeks ago when they did a test on PowerPacks. These nifty pieces of kit are a jump charger and inverter. They also can come with a light and air compressor, No idea what the best one is for you use, but it may worth checking out the article. I am sure any of the companies featured will do just inverters as well.
should be ideal for runnung a small lcd tv pulling around 150watts be warned some older tvs can pull 600w when you turn them on ,,so treat yourself to a nice compact lcd and you should be laughing,,,,,
Even a 150 watt lcd tv will take 12.5 amps to run it at 12 volts and that doesn't take into account the inneficiency of the inverter,so you need a large battery,and even that wont last very long.
Inverters are inherently inefficient because you are starting off with 12V DC (Direct Current) and running an oscillator (a vibrator for electricity ) to enable a step-up transformer to output 240V AC (Alternating Current).
Now, I know you don't want to go and fork out money on a TV that will run on 12V when you have a perfectly serviceable mains one but... consider spending your cash on a TV plug-in for your laptop (if you have one) or even a really cheap TV that'll run off 12V direct; in the long run I can assure you that'll work out far better.
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