Maglite’s used(?) to be the king of flashlights, but replacing those pesky D-cell batteries is kind of ridiculous in this day and age. So [Travis] decided to upgrade it to make use of the ever ...

Flashlights used in the military can be very different to the ones you'll find on the shelves of your local supermarket.

Once our sphere was calibrated, we measured each flashlight in our test at set intervals. We took measurements when we first turned the light on, then every 30 seconds up to 3 minutes; at 5 ...

Unlock to see our ratings and compare products side by side The Energizer Advanced Lithium AA is part of the Batteries test program at Consumer Reports. In our lab tests, AA batteries models like ...

are compact and have other features you may not think of needing until you have a flashlight that doesn't offer it. Ultimately, our favorite is the OLight Baton 3 Pro. But if you'd like to choose ...

If you’ve bought a powerful LED flashlight, a rechargeable battery ... the Tesla electric vehicle runs on a few thousand of these cells. The number might seem like a strange choice, but it ...

A version of this column by retired Miami Herald senior writer and lead hurricane writer Martin Merzer was originally posted ...

Much like the batteries that are found under the hoods of automobiles or in flashlights, a fuel cell converts chemical energy to electrical energy. All fuel cells have the same basic configuration ...

Plant cells have several structures not found in other eukaryotes. In particular, organelles called chloroplasts allow plants to capture the energy of the Sun in energy-rich molecules; cell walls ...

Body cells replicate periodically (through mitosis, or cell division), but normal cells respond to their surrounding cells and replicate only to replace other cells. Sometimes a genetic mutation ...

Such agents also induce the production of interferon-gamma by NK cells. A human natural killer cell line, NK 3.3, was established from soft agarose cloning of primary MLC activated cells in a medium ...

Unlock to see our ratings and compare products side by side The Energizer Ultimate Lithium AA is part of the Batteries test program at Consumer Reports. In our lab tests, AA batteries models like ...