I have been working on converting a sport bike to electric. I have found that high capacity, hight powered batteries are very expensive and that I can buy the equipment and cells for not too much more and build it myself. The main investment would be buying the spot welder in order to use copper tabs. After that initial equipment investment, I have thought about opening a side business since I believe I could create these batteries under the current market price. I was wondering if anyone here knows if there is a market large enough for custom lithium battery packs for it to be worth it. Please let me know if I over looked something or forgot to factor something in.