Convert Your AAs to Cs or Ds

by John B. Carnett John B. Carnett

This month's "Why didn't I think of that" award goes to Panasonic's nickel-metal-hydride (NiMH) battery set, which converts AAs to C or D batteries. It comes with rechargeables, but alkalines work as well. Just pop on the appropriate jacket and you're ready. Of course, you get the battery life of a AA, not that of longer-lasting Cs and Ds.


Price: $30; includes six AAs, two AAAs, four adapters, and a charger.

www.panasonic.com



0 Comments


138 years of Popular Science at your fingertips.

Innovation Challenges



Popular Science+ For iPad

Each issue has been completely reimagined for your iPad. See our amazing new vision for magazines that goes far beyond the printed page



Download Our App

Stay up to date on the latest news of the future of science and technology from your iPhone or Android phone with full articles, images and offline viewing



Follow Us On Twitter

Featuring every article from the magazine and website, plus links from around the Web. Also see our PopSci DIY feed


February 2012: The Future of Fun

Science is reinventing play, from extreme sports to gamification to ridiculous roller coasters to the playgrounds of tomorrow, and this issue is chock full of fun. Also, on a less fun note: Did global warming destroy my hometown?


circ-top-header.gif
circ-cover.gif
bmxmag-ps