With Instructables you can share what you make with the world, and tap into an ever-growing community of creative experts.
Tell us about yourself!
The entire bottom and side of a sub c cell is the negative electrode. There is no fire danger here. Only that nub at the top center is positive. I like the author am an old rc guy. I still do it.
Join 2 million + to receive instant DIY inspiration in your inbox.
© 2016 Autodesk, Inc.