[Mike AA]

This is no biggie, All it takes is a connector the same as the batteries have and an inverter from nearly anywhere. Best places I've found for pricing is Menards and Target at around $20 for a decent sized one, the connector you can get from many places for about $10? I was on my laptop which only has a 2-3 hour battery for more than 8 hours in the dome, in the middle of the crowd. I was using a couple of power packs by xantrex, they each have a 300 watt inverter and when tied together the inverter could easily run my laptop and others and the charger to my video camera all day. Then I let it charge over night and was ready to go. I've used them on trips and out camping. I jsut got a 2500 watt inverter and I'm getting ahold of 2 135 amp batteries (like the robot but much, MUCH larger and should be able to run everyone's laptops all weekend. Look for the guy plugged into a cooler looking device at Westmichigan and Greatlakes and Atlanta, if my team goes.