Race Run Times?

[Sower]

Ok guys, I went out and tested it today. I had a full charge on my batteries and it took just under 20 minutes before I was dead. I was pretty much racing all out too. I'm pretty happy about it, but I need to have an alternative to get me to 30 minutes. I would like to find something that's about the same size, but just a little taller. This Hyperion is about 6.3" long, and 1.8" wide. Any ideas?