Other features of this affordable 5G phone include a huge battery, fast charging, NFC, expandable storage, and a fingerprint reader.

Although it’s listed as a group 31 battery, the Optima Blue Top actually has the same dimensions as most 27 group batteries, making it an easy upgrade for anglers looking for a little more juice ...

When a friend finds her caravan’s deep-cycle battery manager has expired over the summer, and her holiday home on wheels is without its lighting and water pump, what can you do? Faced with a ...

A charged battery is a happy battery ... All our recommended products remain the same. December 16, 2022: Updated product links and introduction. March 2, 2022: Removed unavailable Optima Digital ...

I’m one of the consumer PC experts at PCMag, with a particular love for PC gaming. I've played games on my computer for as long as I can remember, which eventually (as it does for many) led me ...

French researchers have announced a prototype of an 18650 sodium-ion battery. If you’ve bought a powerful LED flashlight, a rechargeable battery pack, or a–ahem–stronger than usual LASER ...

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Rechargeable lithium-ion batteries don’t last forever. Over time, they hold onto less charge, eventually transforming from power sources to bricks. One reason: hidden, leaky hydrogen ...

Because it requires no extra batteries, it offers a much more affordable way to produce drinking ...

A battery is a device that stores energy in chemical form and can convert it into electric energy through electrochemical reactions. Deposition–dissolution reactions are key to the function of ...

Its chargers are backed by a one-year warranty, the same length as the warranties for the rest of our picks. If you want to baby your batteries, to make them last as long as possible, the Tenergy ...