That's because batteries don't always hold their full capacity and might degrade overtime, So, how do you get a read out of battery health to know if your laptop's battery is due for replacement ...

CR answers questions about used EVs, which are cheaper than gas or hybrid cars. But how long will the battery last? What are ...

A phone would need to hold out for more than 14 hours on the battery test we run on each phone just to have a chance of making the grade. Still, some devices manage to go above and beyond that 14 ...

Both the iPhone 16 and the iPhone 15 before it offer the option to limit charging to 80% rather than 100%. The thinking is that many people don’t need the full battery capacity of the device in a ...

a feature that's designed to prolong the battery life and battery health of your Mac by reducing the rate of chemical aging. Mac notebooks use lithium-ion batteries, which like all rechargeable ...

The Oura Ring 4 requires a $6-per-month subscription, but the Apple Watch and Samsung Galaxy Ring do not. However, what gives ...

The first rule of fitness trackers is that you should want to wear it, and be able to wear it for long periods of time. The ...

That means both the iPhone 16 Pro Max and Galaxy S24 Ultra had 100% battery health at the start of the test. The screens were set to 200 nits with auto-brightness turned off. The speakers were ...

There’s a strong case for dedicated motorcycle battery chargers. Most batteries will become discharged if the bike is left alone for a period of time (sometimes as little as a couple of weeks ...

A community in Inishowen, Co Donegal, living near the proposed site of the first iron-air battery storage project in Europe ...

Dates tested: December 2022, May 2024. We changed the way we test and evaluate toothbrushes in May 2024, adding a new assessment of battery, which means models tested and reviewed before May 2024 are ...

Read our in-depth testing of the Enduro 3, including the results of our ultra-marathon battery, GPS and heart rate test ...