I noticed you are offering Shark and Dolphin packs (I'm waiting for a Tuna, myself). The big fish (sorry) in the battery space are EM3ev and Luna Cycle. You seem to be matching their prices.
Not much information, just a lot of listings. One thing I notice is that it is hard to find smaller packs. Most of the DIY market is high performance, so small packs are not much use. But for a lot of basic builders, converting a bike in the garage, a pack for $250 would be pretty attractive.
I know, the page is under construction. You seem like a high energy guy looking for a piece of the ebike action. Good luck.