LONG-LASTING BATTERIES DESIGNED FOR DEPENDABILITY – Duracell Coppertop alkaline batteries deliver the lasting power and performance you can count on for electronic devices throughout the home or ...

I applaud your series on becoming a maker (How to be a maker, 11 May). We are in danger of forgetting the basics. But to imply that you can get a painful shock from a 9-volt battery is absurd – unless ...