This simple charger and capacity tester, which is built around two inexpensive and widely available modules, provides an ...

A CNET survey confirms that 78% of US adults are concerned about rising home energy costs. So, it's no surprise that many homeowners are embracing a DIY approach to renovations, from upgrading ...

With a 2024 CNET survey finding that 78% of US adults are concerned about rising home energy costs, it's no surprise that homeowners are looking to save money. One way to do that is to get your home ...

You can salvage lithium 18650 cells from all sorts of modern gadgets, from disposable vapes to cordless power tools. The tricky part, other than physically liberating ...