Batteries are the latest landing pad for investors. In the past week alone, two companies have announced plans to become publicly traded companies by merging with special purpose acquisition companies
<img src="http://www.crunchbase.com/assets/images/resized/0010/4019/104019v1-max-250x250.png" class="shot2"></img> <a href="http://www.duke-energy.com/company.asp">Duke Energy</a> and <a href="http://