I just started running lipos in cars but have been flying with them for years.
I use a Astro Flight 109. It is one of the easiest chargers to use, Just plug in a battery set the amps and wait till it's done, it will charge up to 9 cells at 8 amps. It has never failed me.
It also has one other feature that I have not found in any other lipo charger. Instead of lowering the amps after it reaches 3.7 Volts per cell it cuts the amps off as the cell reaches 3.7 and back on when it goes under 3.7v untill the pack will hold 3.7V per cell.
I have heard that this helps increase the "Punch" of the packs.
As for other chargers, I have seen many have great results with the Ice/Triton line of chargers and have heard great things about the Hyperion line of chargers.
I have been thinking of trying this one http://www.hobbycity.com/hobbycity/s...idProduct=6408
It is supposed to be a Hyperion just with different colors and decals?