The Hyperion chargers can't do 6s Lipo. To get a 6s charger, you'll need to spend at least $120. The easier-to-get chargers include the TP-1010C and the Astroflight 109:
http://parts.rctoys.com/rc-toys-hobbies/Items/TP-1010C?
http://www2.towerhobbies.com/cgi-bin...&I=LXFWW2&P=ML
The 109 isn't the greatest charger. It isn't a CC/CV charger like normal Lipo chargers. You also can't do much with it in terms of buttons and changing settings.
SH Z-Car, Custom Crawler, 8s Savage,
12s XTM XLB 1/7 buggy,
4wd 4-link rear/IFS Pro4 truck,
Custom Hyper 10 Short Course,
Belt-Drive Mammoth ST 1/8 truggy, 4s 17.5 MM Pro HPI Blitz