Announcement I have is about how to fix the battery connection issue for some failed solar car models. I found some of battery boxes experienced intermittant wire connection problem at the negative outlet. It is a major heart-breaker because soar racing car does not run without 3 V electricity stored in the batteries. Simple fix is to apply a little bit of soldering lead so please bring it back to solar camp and I will try fix it in 8 seconds. Then your solar car can enter the solar racing competition next Sabbath!