[tc3_racer_001]

yes, as mentioned above, a $40 psu from hobby city will allow you to charge larger (4s 4600's) packs at 10A.(dont do that unless you have lots of money (to pay for the house are burns costs) or 10K packs...

from what ive seen, ac/dc are limited pretty much to 50w. this is because they use a laptop power supply (open your charger i dare you!)

hope this helps. it really depends on what capacity and voltage your going to be running.