under your electronics category, I'd look into altering a wall charger so that it has two low voltage plugs directly & permantly attached to it..one cord for the ipad and the other the battery charger this will allow the ipad to be charged from the wall charger or the ( keep 'em under 6"). could save some space and weight P.S. I took a look at the proposed wall charger- if you don't mind some advice, it would be, don't buy it! the folding 120volt prongs appeal to most of us but, the internal wires ( the ones that are soldered to the prongs inside of the charger)are flexed every time the prongs are moved- eventually the wire breaks. repair is possible, if you're skilled, but on the trail,or motel room, I doubt if it could be done.