text: There is a new type of External WIFI Antena at the CCRANE company that runs off a USB PORT EXCELLENT for WIFI super gain...for long distance access...Check it out..\nStart up load is usually DOUBLE the wattage for some electrical devices....2 6volt batteries and a 15 watt solar panel should give you an easy 8hours of computing...MOST Modified sine wave inverters DO NOT like the load a charging computer puts on them...especially at start up..its not uncommon to get an ALARM\nas the voltage requirements go up..\nIf it was me a deepcycle 12 volt battery...89.00  a 400watt inverter\n36.00  and  a 15watt solar panel..150.00 and your on the way to Solar computing..JUST A NOTE on ANY Battery powered system...if you dont use a deep cycle battery...dont go below 50%\nDOD depth of discharge it will make the battery last longer.