First of all, don't worry about anyone having a pop at you for taking a TV with you, it's YOUR choice! I take my 10" TV with me in the winter for those long nights. I have the power ring 40ah which is fantastic. I've just done 9 days/nights in Portugal, it kept my laptop and phone charged up and still had 50% of it's power left at the end of the session. I got mine from Halfords, which at the time was the best price.