Generic Fat Battery #1 "3500mAh" --Acquired August 19th 2011-- $8.55
Give it 2 whole tests. Supposedly new batteries need to go through at least a charge cycle before they hit capacity but I haven't noticed this. I'd like to see if your date can back it up. The new Hyperion is amazing and I still have to convince myself to give it up to you for a few days and go back to my stock battery.