lol, batteries are simple. i dont think your idea would work, but here is how it works:
if you solder two batteries that have 1 volt in each, and you solder them positive to negative, you get 2 volts, but the same battery life.
i you solder positive to positive, negative to negative, you get longer life. so, get like 10 AA batteries and solder them togther and take out the battery inside the battery, and solder it on.
oh... and can you still get me a dlink router or is that dropped?