charger for 6s lipo

[cham]

I properly hooked up the ac6, read the manual 6 times and once more for good measure. I used ec5 connectors connected to 4mm plugs that went perfectly into the charger port. I did everything right but I never saw in increase in voltage in the pack or the individual cells after charging for over 2 hours. The pack never got warm at all, the charger just was not working at all. I know my soldering job was done in the correct manner and the battery connections were perfectly done. I studied my butt off and watched like 6 videos on the subject including one on ec5 soldering teks. I just dont know what went wrong. But Ive heard several people complaining that the ac6 wont work with charging 6s and 5s lipos out of the wall. I just got an offer to buy a Hyperion 610i charger with a power supply from a guy on here for 150 dollars. Is that a decent deal you guys? Sounds like it is to me but Im no familiar with used pricing on chargers, or if its even a good idea to buy used. Can someone give me a good idea on if this is a decent deal? Thanks so much you guys!!! Its almost time to run this beast, waiting on the battery tray, a BEC and my new jr9000t for the single servo mod and Im ready to go!