I have a foosball table with an electric scoreboard. The scoreboard plugs into the wall with a 6V 300mA AC adapter. My problem is the cord. The table is kind of in the middle of the room and the cord has to run across the floor. It's kind of a tripping hazard.. and.. well.. looks tacky. I was thinking I could run the scoreboard off of battery power and not have to worry about the cord. It's an LED scoreboard that plays crowd noises and shouts "GOAL!". Pretty cheesy but fun. 4 AA batteries would get me 6V. Would this be sufficient? Or would I go with C or D batteries? where can I find a "battery pack" that I can mount under the table?