A dead-simple, wonderfully nifty test offers a quick and reliable way to check the actual charge state of a battery, keeping you from rashly discarding good batteries or buying new ones unnecessarily.

In terms of performance, the Nikon Coolpix ... and electronic. The Coolpix S9900 measures 4.4 inches wide by 2.7 inches high by 1.6 inches deep, and weighs 10 ounces (with battery, memory card ...

Your browser does not support the video tag. Whether you use a high-end or budget device, its battery degrades over time. Knowing its status is vital, especially if ...

We may receive a commission on purchases made from links. Car battery shopping has to be one of the least exciting parts about owning a car. Usually, it comes after several attempts at starting ...

All of the power in the smartphone world won’t get you very far without a good battery to back it up. After all, you must keep the lights on to use your fancy cameras and premium processors.

What is the best solar battery overall? After hours and hours of testing, we've chosen the Bluetti EP900 Home Battery Backup as CNET's new pick for best solar battery overall, overtaking the Tesla ...

Cheaper battery prices are increasing the reliability of solar power and helping drive its adoption. DepositPhotos Climate scientists, for years, have urged governments around the world to switch ...

As you can see, I had the silver version which is rather striking when attached to a Nikon Z fc. It's also a tiny lens, weighing just 5.6oz / 160g approx. (excluding caps and hood) and measuring ...

iPad battery health is a key piece of information that Apple apparently wants to keep hidden from you. Unless you buy the latest iPad Pro or iPad Air, which have an iPhone-style Battery Health ...

and not just the look but also the feel of this lens reminded me of a ‘super-zoom’ bridge camera like the Nikon Coolpix P1000. The lens’s ridged rubberized surface enables a nice firm grip ...

Compared to combustion-engined cars, electric cars have fewer moving parts, regenerative braking tends to mean less frequent replacement of pads and rotors, and servicing requirements are greatly ...