Many backup systems keep essentials online, but the EcoFlow Delta Pro Ulta X can run your house like normal without ...

I've been a fan of Olight flashlights for many years. Now I'm a fan of its new pro-grade battery charger. Here's why.

There was speculation that Donut Lab’s battery was able to discharge energy so quickly because it was a supercapacitor in disguise. So the startup set out to disprove that claim. There was speculation ...

Donut Lab’s solid-state, lithium-free battery has undergone a second round of independent testing, revealing both promising results and critical gaps. Conducted by Finland’s VTT research center, the ...

Donut Lab has released a second set of independent test results for its controversial solid-state battery — this time proving the cell can discharge at extreme temperatures up to 100°C and actually ...

2025 brought big changes to the smartphone battery department, with manufacturers adding silicon-carbon batteries that massively increase capacity without increasing the size of the battery or, by ...

It is common knowledge that communicating over WiFi is more efficient than using the 5G cellular network, but by how much exactly? That’s exactly what PhoneBuff set out to measure in its latest ...

A weak car battery doesn’t always die overnight. Most of the time, it gives subtle warning signs—slow cranking, inconsistent starts, or charging issues that are easy to misread. The problem is that a ...

If your car battery is three or four years old, the first serious cold snap could be the morning it quits. Here’s how to spot the warning signs. Cold weather exposes weak car batteries, increasing ...

Cold weather can kill a weak car battery fast. Learn the warning signs and how to test your battery before freezing temperatures leave you stranded. Winter is when weak batteries get exposed. Cold ...

For years, people have warned that fast charging ruins your phone’s battery over time. A recent long-term test from YouTube channel HTX Studio set out to find out if that’s really true — and the ...