(Video)Droid Cell Phone Explodes in Man’s Ear

On “The Early Show on Saturday Morning,” CNET technology contributor Katie Linendoll explained to James Brown what the most popular type of battery in most electronic devices is and how it can become volatile. (12/4/10 CBSNewsOnline)

1. What are the signs of defective electronic device that consumers should avoid, according to Katie Linendoll?

2. What are the safety tips for consumers provided in the video?