The highest-rated Harbor Freight battery chargers come from Cen-Tech and Viking, with a 4-amp Viking charger topping the list ...

The Over-the-Top type of operational amplifier is ideal for use as a current sense for battery charger applications. The design described here can be used with chargers for rechargeable batteries ...

Craftsman tools that use V20 batteries are among the brand's most popular offerings, but will those batteries work with your ...

A hands-on look at the Kuxiu S3 10,000mAh MagSafe battery and why it replaced multiple chargers for daily use and travel.

Gone are the days when using power tools meant needing access to an outlet and running extension cords all over the place. Cordless tools offer unprecedented freedom of movement, but their reliance on ...

Want to extend your car battery's lifespan? Switch off accessories, avoid long stationary periods, and protect your battery ...

When temperatures drop, EV owners face a physics problem: Reduced battery performance and increased charging times. Fuel economy is 8% lower at 20 degrees than it is at 75 degrees in EVs ‒ and range ...

Low Power Mode is often misunderstood as a battery-saving cure. This piece looks at what it really changes inside your phone, ...