hi there every one ,I know it would depend on how much you use the box ,but on average ,how much would it drain ,do they use much data up watching the box ,ie like watching yotube clips ,if where to get 15gb of data a month ,would I be safe ,or would it use much less ,it would only be for the box,nothing else connected to it ,does any one have any ideas ,or use one ,was going to go for the unlimited giffgaff ,but you cant use the unlimited ones in a sim router ,any help would be much appreciated cheers.