UPDATE: Several readers who tried this out report that it DOES NOT work, that the batteries contained within are 4 large batteries. Our apologies.

Received this video and I'm not sure if it is valid or not. Guess I could disassemble a 6 volt lantern battery and find out. But as I recall from my high school chemistry days, and the warning on the ...

You may have heard that LED flashlights using AA lithium batteries run hotter and die sooner. Is there any truth to this? The short answer: There could be an issue ...