If your looking for a decent power supply for a hyperion i suggest
http://cgi.ebay.com/24V-DC-6A-145W-R...3A1%7C294%3A50, its the roughly the same one I use on my EOS610i duo, and I can charge 2 3s 5k zippy's at the same time at max charge rate and the ps doesn't even flinch, also it "says" its 24v @ 6A but really its 22v-32v @ 6A, I run mine at 26v.