We tested and found each UPS below to deliver precisely what we needed out of what should be an otherwise unremarkable-looking black box ... battery power. How it delivers that battery power to ...

If your laptop’s battery doesn't last nearly as long as it first did out of the box, then it might be time to replace it. The lithium-ion batteries used to power most laptops degrade over time ...

Normally priced at $50, the Kapurui Solar Power Bank is now available at Amazon for just $30 — a 40% discount that saves you ...

Is your phone, tablet, or laptop typically in the battery red zone before the day's end? These portable chargers and power banks give you the most boost when you're out of juice. I’m a Mobile ...

Press Windows key + R to open the Run dialog box, type cmd ... the system is connected to a power source or is running on battery. Also: The best Windows laptop you can buy: Dell, Samsung ...

Use the “Power mode” box to select “Best power efficiency ... power mode is the best choice for maximum battery life. Your laptop’s display is one of the biggest energy hogs on your ...

Your laptop may have even come out of the box configured with some of my suggestions ... head to System > Power & battery and under "Power" you can choose from a few basic power modes.

with drop-down boxes for both plugged-in and on-battery settings—allowing you to choose from options like Best Performance, Balanced or Best Power Efficiency (via Bleeping Computer) for each.

like the HATs or a power bank? Or are you willing to build something else that you can use with your board? If you're up for the challenge, then you can put together a battery box using AA ...

We’ve rounded up the best portable laptop power banks with battery capacities high enough to recharge a fading Apple MacBook if you won’t be able to plug it into an electrical outlet for some ...