denali charger specs question

[Sam Uzi <samuzi@kcd.com>]

someone recently mentioned the Denali e-bikes and I was poking around on their 
site...

Denali uses Hawkers, and they are claiming that their proprietary 1.2kW charger
can charge the battery (from 110v outlet) to 90% in 20 minutes, and to 100% in
30 minutes without harming the battery

is this realistic?  seems too good to be true


ref:

http://www.denalicycles.com/chargerpage.htm

"Denali's Downloader charger will restore 90% charge in 20 minutes from any wall 
outlet between the US and China!
It weighs under 6 pounds and charges at a solid 30 amps."