I have a small cell checker that will charge a battery via the balance leads when plugged into a power supply. I really like it because it's simple and easy for my son to use. Just plug the battery into the balance port and it magically charges the battery. He doesn't have to punch a bunch of buttons to make sure settings are correct like my big charger. I would like another one so he can charge two batteries at once but I don't really want another laptop power supply brick plugged in with the cable taking up a lot of desk space. If I could find a charger that would charge multiple batteries at the same time I could just plug into my existing laptop power supply that would be great. I limit my son to 2S and if I found such a thing all his RC stuff could charge off of it. His crawler batteries, the Slash batteries, and his drone batteries are all 2S with balance plugs. I saw one at hobby king but it only does 1S. If this was 2S it would be perfect.
There are some USB to 2 cell chargers that I could plug into a USB power brick. A little chintzy and have questionable quality but I guess it might work.
Any suggestions?

There are some USB to 2 cell chargers that I could plug into a USB power brick. A little chintzy and have questionable quality but I guess it might work.

Any suggestions?