Every parent knows the constant cycle of buying or recharging batteries for kid-related products—but the Instructables web site has some guides to modifying your gadgets to use AC power instead of ...

Switching from battery to AC power on your Dell laptop has battery-saving benefits. If you use your computer on the go in airports, meetings and conventions, your battery must last long enough to keep ...

If you have any gadgets that only use batteries, and don't accept AC power, you can convert them to run on the grid by building a fake battery pack and hooking it up to a power adapter. Jason Poel ...

Batteries aren't one-size-fits-all, and neither is the way they're wired to your house. Here's what you should know about AC- and DC-coupling. When we think about solar panels and batteries, we don't ...

The battery as we know it today was an invention of Italian chemist and physicist Alessandro Volta. He witnessed electricity splitting water into its constituent elements of oxygen and hydrogen and ...