Can you charge a Galaxy Tab 2 7" with a charger from Galaxy Tab 10.1? I've already got a charger for the Galaxy Tab 10.1 and I'd like to be able to use it charge both that and a Samsung Galaxy Tab 2 7".  It seems to work, but I was wondering if there is any sort of disadvantage to doing that.
You only need to make sure that the chargers produce the same about of voltage and current. There shouldn't be any issues with that.