compact DC driven LiPo icharger 106B+ 10Amp - 250w - AU (this unit requires a Power supply when used at home - or a 12v car battery outlet in the field) Top of the line quality item @ a budget price - iCharger brand by Junsi - These a VERY good quality Lithium Polymer charger and balancer unit with full safety features including a battery temp monitoring sensor. We personally use these in our workshop at Multiwiicopter.com and have done so for 2 years - no issues. Most importantly they very accurately balance our LiPos ensuring the highest capacity and longest life.
Consider buying 2 or 3 chargers to allow you to charge more packs in a short time attended - your time is valueable. We have 6 chargers on our work bench. :)