Stock an affordable emergency kit with all the essentials. Learn how to stay safe and prepared without breaking the bank.

there are light bulbs that have batteries and every time you turn on a lamp that contains one of these bulbs, you charge the ...

Built on LG Energy Solution's 10,000-plus battery patents, the platform offers quick and precise health checks.

I looked at three years of exclusive CNET data of iPhone performance to find out which models hold their charges best.

In the fourth iOS 26.1 beta, Apple added a "Tinted" option that reduces the translucency of Liquid Glass for those who prefer a more ...

TECHBOOK reveals a trick to check the battery capacity of your iPad. Photo: Getty Images On an iPhone or laptop, it’s no problem at all: reading the exact percentage of battery capacity. It’s a bit ...

A multimeter might look intimidating, but learning to use this simple electrician's tool will come in handy during a number of every day tasks.

Battery cell voltage is the most fundamental measurement made on the cell. While on the surface measuring voltage seems easy, ...

Need a long-lasting laptop? Here are the longest battery life laptops we've seen in our many years of hands-on testing.

If your iPhone battery drains faster after updating to iOS 26, wait 24–48 hours for background tasks to settle. Then update to iOS 26.1, restart your iPhone, check and update battery-draining apps, ...

One customer at an auto shop had a power drain issue that caused her to replace her car battery three times in one year.

Despite some consumers' wariness, battery technology has noticeably improved in recent years, says Max Reid, head of battery costs at market research firm CRU. "The older batteries might last maybe ...