This circuit runs a fast battery test without the need of power supply or expensive moving-coil voltmeters. It features two ranges: when SW1 is set as shown in the circuit diagram, the device can test ...

Fresh from their mower testing field in Florida, Consumer Reports testers are ready to share this year’s top performers. They are happy to announce that battery-powered mowers and other lawn tools ...

So many of our daily gadgets rely on batteries. From something as small as a computer mouse to the bulky units needed to run a car, we can't seem to get away from our need for them. That's why it can ...

Is the battery empty, or is there something wrong with the device? That’s always a difficult question when your walkman or some other battery-powered device appears to be dead when you switch it on.

The growing demand for efficient battery testers. How to calculate ac power requirements. Calculating ac power per phase for a three-phase system. One major factor driving the lithium-ion battery ...

Cordless power tools are a farm workshop staple these days, and most will run happily on a modestly sized 18V battery. Yet ...

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 ...

No gadget is fancy enough to make greasing machinery a pleasurable pastime, but a battery-powered dispensing gun can go some way to easing operator ire. Many will argue they’re purely a frivolity but, ...