Packing a larger 5,000 mAh silicon-carbon battery, the Motorola Razr Ultra 2026 rewrites the rules of foldable endurance by ...

The Motorola Razr Fold has set a new record for notebook-style foldables in the Tom's Guide battery drain test.

Batteries are notoriously difficult pieces of technology to deal with reliably. They often need specific temperatures, charge rates, can’t tolerate physical shocks or damage, and can fail ...

Remember Duracell’s PowerCheck? The idea was that a strip built into the battery would show if the battery was good or not. Sure, you could always get a meter or a dedicated battery tester — but ...

The importance of calibration for all electronic test equipment. The main reason why such equipment must be regularly calibrated. The pros and cons of self-calibration or using outside services. It’s ...

Your car’s battery might seem like a “set it and forget it” part, but when it fails, it can leave you stranded, potentially costing you hundreds of dollars in tow fees or a visit to the mechanic to ...

A while ago, I came across the BT-168 Battery Tester. It seems to be cheap and widely available. Because I wanted to see what’s inside, I decided to order one from an online seller, and managed to get ...

Check out how the phone's 8000 mAh battery performs. The Realme 16T combines a massive 8,000mAh battery with a ...

I looked at three years of exclusive CNET data of iPhone performance to find out which models hold their charges best. As Managing Editor, I lead CNET's mobile team, covering news and reviews on ...