The Sofirn SP36 Pro is popular and well-rated among the flashlight community for its powerful output at such a low price. Most people buy it for around $50-$60, so getting it for under $30 is ...

French researchers have announced a prototype of an 18650 sodium-ion battery. If you’ve bought a powerful LED flashlight, a rechargeable battery pack, or a–ahem–stronger than usual LASER pointer, ...

Streamlight ® Inc.'s 18650 USB lithium ion battery with integrated micro USB charging port, turns Streamlight’s high performance lights into rechargeable systems. The new models are an economical ...

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 ...

If you've owned a laptop for a few years, you've no doubt encountered the problem that the battery eventually loses its ability to hold a charge. Generally what happens is that one or more of the ...

The U.S. Consumer Product Safety Commission warned consumers against purchasing 18650 batteries — which are often used to power vapes and other small devices — due to the risks associated Jason Hahn ...